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1. Analysis of lignin and extractives in the oak wood of the 17th century warship Vasa

Author:
Dina Dedic; Teresia Sandberg; Tommy Iversen; Tomas Larsson; Monica Ek
Source:
Holzforschung 2013 v.68 no.4 pp. 419-425
ISSN:
1437-434X
Subject:
cellulose; chemical degradation; depolymerization; desorption; ellagic acid; gas chromatography-mass spectrometry; ionization; lignin; nuclear magnetic resonance spectroscopy; spinning; tannins; thioacidolysis; wood; wood extractives
Abstract:
... The wood in the 17ᵗʰ century Swedish warship Vasa is weak. A depolymerization of the wood’s cellulose has been linked to the weakening, but the chemical mechanisms are yet unclear. The objective of this study was to analyze the lignin and tannin moieties of the wood to clarify whether the depolymerization of cellulose via ongoing oxidative mechanisms is indeed the main reason for weakening the woo ...
DOI:
10.1515/hf-2013-0067

2. Anti-theft device staining on banknotes detected by mass spectrometry imaging

Author:
Deleon Nascimento Correa; Jorge Jardim Zacca; Werickson Fortunato de Carvalho Rocha; Rodrigo Borges; Wanderley de Souza; Rodinei Augusti; Marcos Nogueira Eberlin; Pedro Henrique Vendramini
Source:
Forensic science international 2016 v.260 pp. 22-26
ISSN:
0379-0738
Subject:
cellulose; desorption; detection limit; dyes; explosions; forensic sciences; humans; image analysis; ionization; mass spectrometry; staining
Abstract:
... We describe the identification and limits of detection of ink staining by mass spectrometry imaging (MSI), as used in anti-theft devices (ATDs). Such ink staining is applied to banknotes during automated teller machine (ATM) explosions. Desorption electrospray ionization (DESI) coupled with high-resolution and high-accuracy orbitrap mass spectrometry (MS) and a moving stage device were applied to ...
DOI:
10.1016/j.forsciint.2015.09.017

3. Anticodeine aptamer immobilized on a Whatman cellulose paper for thin-film microextraction of codeine from urine followed by electrospray ionization ion mobility spectrometry

Author:
Zahra Hashemian; Taghi Khayamian; Mohammad Saraji
Source:
Analytical and bioanalytical chemistry 2015 v.407 no.6 pp. 1615-1623
ISSN:
1618-2642
Subject:
cellulose; codeine; detection limit; high performance liquid chromatography; infrared spectroscopy; ionization; microextraction; oligonucleotides; paper; solvents; temperature; urine
Abstract:
... A combination of thin-film microextaction based on an aptamer immobilized on modified Whatman cellulose paper followed by electrospray ionization ion mobility spectrometry has been developed for the analysis of codeine in urine samples. The immobilization is based on the covalent linking of an amino-modified anticodeine aptamer to aldehyde groups of the oxidized cellulose paper. The covalent bonds ...
DOI:
10.1007/s00216-014-8392-5

4. Associative structures formed from cellulose nanofibrils and nanochitins are pH-responsive and exhibit tunable rheology

Author:
Emily G. Facchine; Long Bai; Orlando J. Rojas; Saad A. Khan
Source:
Journal of colloid and interface science 2021 v.588 pp. 232-241
ISSN:
0021-9797
Subject:
calorimetry; cellulose; cellulose nanofibers; gels; heat; hydrophobicity; ionization; modulus of elasticity; neutralization; pH; rheology; titration
Abstract:
... Nanocellulose and nanochitin are both biobased materials with complementary structures and properties. Both exhibit pH-dependent surface charges which are opposite in sign. Hence, it should be possible to manipulate them to form complexed structures via ionic bond formation at prescribed pH conditions.Nanocellulose and nanochitin were mixed after exposure to acidic or neutral conditions to influen ...
DOI:
10.1016/j.jcis.2020.12.041

5. Bio-oil Analysis Using Negative Electrospray Ionization: Comparative Study of High-Resolution Mass Spectrometers and Phenolic versus Sugaric Components

Author:
Smith Erica A.; Park Soojin; Klein Adam T.; Lee Young Jin
Source:
Energy & Fuels 2012 v.26 no.6 pp. 3796-3802
ISSN:
1520-5029
Subject:
biofuels; cellulose; chemical composition; gas chromatography-mass spectrometry; hemicellulose; hydrocarbons; ionization; lignin; phenolic compounds; pyrolysis; spectrometers
Abstract:
... We have previously demonstrated that a petroleomic analysis could be performed for bio-oils and revealed the complex nature of bio-oils for the nonvolatile phenolic compounds (Smith, E.; Lee, Y. J.Energy Fuels 2010, 24, 5190−5198). As a subsequent study, we have adapted electrospray ionization in negative-ion mode to characterize a wide variety of bio-oil compounds. A comparative study of three co ...
DOI:
10.1021/ef3003558

6. Cerebrosides, extracellular glycolipids secreted by the selective lignin-degrading fungus Ceriporiopsis subvermispora

Author:
Hiroshi Nishimura; Daisuke Yamaguchi; Takashi Watanabe
Source:
Chemistry and physics of lipids 2017 v.203 pp. 1-11
ISSN:
0009-3084
Subject:
Ceriporiopsis subvermispora; acids; cellulose; cerebrosides; electrospray ionization mass spectrometry; enzymes; hydrophobicity; hyphae; ionization; lignin; liquid chromatography; metabolites; microbial communities; molecular weight; nuclear magnetic resonance spectroscopy; secretion; stable isotopes; sulfates; symbiosis; white-rot fungi
Abstract:
... Ceriporiopsis subvermispora is a selective white-rot fungus that degrades lignin at a site far from the hyphae and extracellular enzymes, without intensive damage to the cellulose. In selective ligninolysis, low molecular mass metabolites play a principal role and amphipathic substances are involved to control the degradation and transport of hydrophobic aromatic molecules, including lignin and li ...
DOI:
10.1016/j.chemphyslip.2016.12.006

7. Characterization of a new multifunctional beta-glucosidase from Musca domestica

Author:
Shu Zhang; Jian Huang; Rong Hu; Guo Guo; Xiaoli Shang; Jianwei Wu
Source:
Biotechnology letters 2017 v.39 no.8 pp. 1219-1227
ISSN:
0141-5492
Subject:
Komagataella pastoris; complementary DNA; glucose; ionization; cellobiose; rapid amplification of cDNA ends; cellulose; industrial applications; amino acids; genes; endo-1,4-beta-glucanase; glycosides; Musca domestica; beta-glucosidase; desorption
Abstract:
... OBJECTIVE: To engineer Pichia pastoris for heterologous production of cellulase from Musca domestica and explore its potential for industrial applications. RESULTS: A new beta-glucosidase gene (bg), encoding 562 amino acids, was cloned from M. domestica by using rapid amplification of cDNA ends. The gene bg was linked to pPICZαA and expressed in P. pastoris with a yield of 500 mg l⁻¹. The enzyme h ...
DOI:
10.1007/s10529-017-2351-0

8. Characterization of cultivable intestinal microbiota in Rhynchophorus palmarum Linnaeus (Coleoptera: Curculionidae) and determination of its cellulolytic activity

Author:
Rodrigo J. N. Calumby; Lara M. de Almeida; Yasmin N. de Barros; Wilson D. Segura; Valcilaine T. Barbosa; Antonio T. da Silva; Camila B. Dornelas; Valter Alvino; Luciano A. M. Grillo
Source:
Archives of insect biochemistry and physiology 2022 v.110 no.2 pp. e21881
ISSN:
0739-4462
Subject:
Acinetobacter; Alcaligenes; Arthrobacter; Bacillus cereus; Candida; Citrobacter; Enterococcus; Lactococcus; Micrococcus; Proteus; Providencia; Pseudomonas; Rhynchophorus palmarum; Saccharomyces; Serratia; Staphylococcus; adults; agar; biological control; cellulose; coconuts; desorption; dissection; enzymes; fungi; insect biochemistry; insects; intestinal microorganisms; intestines; ionization; laminar flow; mass spectrometry; pest control; pests; sodium chloride; Brazil
Abstract:
... Rhynchophorus palmarum Linnaeus is an agricultural pest that affects various palm crops, including coconut (Cocos nucifera) plantations which are prominent in the economy of Northeastern Brazil. Characterization of the intestinal microbiota of R. palmarum, as well as elucidation of aspects related to the biochemistry and physiology of the insect's digestion, is essential for intervention in specif ...
DOI:
10.1002/arch.21881

9. Characterizing lignin: Combining lignin phenol, methoxy quantification, and dual stable carbon and hydrogen isotopic techniques

Author:
Hyejung Lee; Xiaojuan Feng; Maria Mastalerz; Sarah J. Feakins
Source:
Organic geochemistry 2019 v.136 pp. 103894
ISSN:
0146-6380
Subject:
ambient temperature; calibration; carbon; cellulose; cupric oxide; diagenesis; forensic sciences; gas chromatography; headspace analysis; hydrogen; ionization; iso-octanes; isotope labeling; isotopes; lignin; lignite; liquids; methyl iodide; moieties; oxidation; peat; phenol; sediments; solvents; stoichiometry; wood
Abstract:
... Lignin is a major structural plant biochemical and biogeochemical compound present in peat and lignite. Its monomeric (phenolic) and polymeric structures include varying amounts of ether-bonded methyl groups (i.e., methoxy or OCH3). These methoxy groups are generally underused targets for both structural characterization and isotopic analyses. We analyzed the quantity and C and H isotopic composit ...
DOI:
10.1016/j.orggeochem.2019.07.003

10. Combining Fibrinogen-Conjugated Gold Nanoparticles with a Cellulose Membrane for the Mass Spectrometry-Based Detection of Fibrinolytic-Related Proteins

Author:
Chiu Wei-Chane; Huang Chih-Ching
Source:
Analytical chemistry 2013 v.85 no.14 pp. 6922-6929
ISSN:
1520-6882
Subject:
blood serum; cellulose; desorption; detection limit; gold; humans; ionization; irradiation; mass spectrometry; mechanism of action; nanogold; plasmin; plasminogen; proteins; u-plasminogen activator
Abstract:
... In this paper, we describe a pulsed-laser desorption/ionization mass spectrometry (LDI-MS) approach for the detection of plasmin with subnanomolar sensitivity through the analysis of gold (Au) clusters desorbed from fibrinogen-modified gold nanoparticles (Fib–Au NPs) on a mixed cellulose ester membrane (MCEM). The mechanism of action of this probe is based on the plasmin-mediated cleavage of the F ...
DOI:
10.1021/ac4013418

11. A Comparative Study of Matrix‐ and Nano‐assisted Laser Desorption/Ionisation Time‐of‐Flight Mass Spectrometry of Isolated and Synthetic Lignin

Author:
Koichi Yoshioka; Daisuke Ando; Takashi Watanabe
Source:
Phytochemical analysis 2012 v.23 no.3 pp. 248-253
ISSN:
0958-0344
Subject:
Pinus densiflora; cellulose; coniferyl alcohol; desorption; ionization; lasers; lignin; mass spectrometry; molecular weight
Abstract:
... INTRODUCTION: Lignin is the second most abundant biopolymer next to cellulose. However, because of the complexity of the heterogeneous macromolecules, it is difficult to elucidate the polymeric structures of lignin by conventional analytical methods. OBJECTIVE: To obtain the detailed structures of lignin, we comparatively applied nano‐assisted laser desorption/ionisation time‐of‐flight mass spectr ...
DOI:
10.1002/pca.1350
PubMed:
21898628

12. Comparative analysis of pyrolytic liquid products of beech wood, flax shives and woody biomass components

Author:
Chetna Mohabeer; Lokmane Abdelouahed; Stéphane Marcotte; Bechara Taouk
Source:
Journal of analytical and applied pyrolysis 2017 v.127 pp. 269-277
ISSN:
0165-2370
Subject:
Fagus; biofuels; biomass; carboxylic acids; cellulose; flax; furans; gas chromatography-mass spectrometry; ionization; lignin; liquids; oxygen; principal component analysis; provenance; pyrolysis; sugars; temperature; wood; xylan
Abstract:
... During the course of this study, beech wood, flax shives and the three biomass components: cellulose, hemicellulose and lignin, were pyrolysed at 450°C, 500°C, 550°C and 600°C. The liquid bio-oil samples recovered in each case were analysed through gas chromatography-mass spectrometry (GC–MS) and gas chromatography-flame ionisation detection (GC-FID) to identify and quantify the different molecule ...
DOI:
10.1016/j.jaap.2017.07.025

13. Comparison of Silica and Cellulose Stationary Phases to Analyze Bitumen by High-Performance Thin-Layer Chromatography Coupled to Laser Desorption Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Author:
Oscar Lacroix-Andrivet; Marie Hubert-Roux; Anna Luiza Mendes Siqueira; Yang Bai; Carlos Afonso
Source:
Energy & fuels 2020 v.34 no.8 pp. 9296-9303
ISSN:
1520-5029
Subject:
adsorption; asphaltenes; bitumen; cellulose; desorption; energy; ethanol; fractionation; fullerene; heptane; ionization; mass spectrometry; petroleum; signal-to-noise ratio; silica gel; solubility; thin layer chromatography; vacuum distillation
Abstract:
... Bitumen is a complex mixture corresponding to the residue of the vacuum distillation of crude oil. It can be separated on the basis of polarity and solubility with saturates, aromatics, resins, and asphaltenes (SARA) fractionation. High-performance thin-layer chromatography is suited to analyze complex mixtures such as petroleum products, which separates compounds according to their polarity. In t ...
DOI:
10.1021/acs.energyfuels.0c00709

14. Comprehensive thin-layer chromatography mass spectrometry of flavanols from Juniperus communis L. and Punica granatum L.

Author:
Samo Smrke; Irena Vovk
Source:
Journal of chromatography 2013 v.1289 no. pp. 119-126
ISSN:
0021-9673
Subject:
Juniperus communis; Punica granatum; cellulose; flavanols; fruits; ionization; mass spectrometry; monitoring; proanthocyanidins; screening; seeds; silica gel; solvents; thin layer chromatography
Abstract:
... The coupling of thin-layer chromatography with mass spectrometry (TLC–MS) for the analysis of monomeric flavanols and proanthocyanidins in samples presented as complex matrices has been studied. The elution conditions for TLC–MS were optimised and full scans were compared with selected reaction monitoring for the MS detection of compounds. The performance of silica gel and cellulose plates with di ...
DOI:
10.1016/j.chroma.2013.03.012

15. The Determination of Formaldehyde in Cellulose Formals and. Methylated Cellulose Formals

Author:
S. Ramanathan; Joseph Rivlin; O.A. Stamm; H. Zollinger
Source:
Textile research journal 1968 v.38 no.1 pp. 63-71
ISSN:
0040-5175
Subject:
carbon dioxide; cellulose; combustion; cotton; crosslinking; fabrics; formaldehyde; ionization; methylation; textile fibers
Abstract:
... It is shown that only Schiff's method is suitable for the determination of formaldehyde in methylated cellulose formals. These are intermediates in the elucidation of the struc ture of cotton cross-linked with formaldehyde. Some modifications of the usual pro cedure are recommended to obtain an accuracy of 3% relative to the amount of formaldehyde present. The modified Schiff's method was standard ...
DOI:
10.1177/004051756803800108

16. Development of efficient SALDI substrate based on Au–TiO2 nanohybrids for environmental and forensic detection of dyes and NSAIDs

Author:
Mohamed O. Amin; Entesar Al-Hetlani
Source:
Talanta 2021 v.233 pp. 122530
ISSN:
0039-9140
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; cellulose; chemical species; desorption; detection limit; forensic sciences; ionization; nanohybrids; polystyrenes; surface area; transmission electron microscopy
Abstract:
... Herein, a matrix-free approach is presented for comprehensive environmental and forensic analysis of dyes and nonsteroidal anti-inflammatory drugs (NSAIDs) using Au–TiO₂ nanohybrids coupled with surface-assisted pulsed laser desorption ionization-mass spectrometry (SALDI-MS). The Au–TiO₂ nanohybrids was prepared and characterized using inductively coupled plasma-optical emission spectrometry (ICP- ...
DOI:
10.1016/j.talanta.2021.122530

17. Direct Infusion Mass Spectrometric Analysis of Bio-oil Using ESI-Ion-Trap MS

Author:
Alsbou Eid; Helleur Bob
Source:
Energy & Fuels 2014 v.28 no.1 pp. 578-590
ISSN:
1520-5029
Subject:
additives; ammonium chloride; biofuels; cellulose; formic acid; fractionation; hardwood; hydrophilicity; hydrophobicity; ionization; ions; lignin; models; plant residues; sodium chloride; sodium hydroxide
Abstract:
... Direct infusion-electrospray ionization (ESI)-Ion-Trap MS and ESI-Ion-Trap MS² were used for direct analysis of bio-oil from forest residue and reference bio-oils from cellulose and hardwood lignin. It was found that the bio-oil concentration and mode of MS analysis are important parameters in obtaining reproducible and structurally informative data. In order to study sensitivity and selectivity w ...
DOI:
10.1021/ef4018288

18. Direct production of levulinic acid in high yield from cellulose: joint effect of high ion strength and microwave field

Author:
Kai Qin; Yani Yan; Yahong Zhang; Yi Tang
Source:
RSC advances 2016 v.6 no.45 pp. 39131-39136
ISSN:
2046-2069
Subject:
cellulose; glucose; hydrolysis; ionic strength; ionization; levulinic acid; microwave radiation; microwave treatment
Abstract:
... Cellulose without any pretreatment was directly converted into levulinic acid (LA) in a microwave-assisted acidic catalytic system with a high ionic strength. The highest LA yield could reach 67.3 mol% within 60 min even when the cellulose concentration was as high as 10 wt%. It is concluded that high ion strength and microwave irradiation were jointly responsible for the fast cellulose conversion ...
DOI:
10.1039/c6ra00448b

19. Direct quantification of negatively charged functional groups on membrane surfaces

Author:
Alberto Tiraferri; Menachem Elimelech
Source:
Journal of membrane science 2012 v.389 no. pp. 499-508
ISSN:
0376-7388
Subject:
acetates; artificial membranes; cellulose; electrostatic interactions; ionization; pH; particulates; polyamides; spectroscopy; toluidine blue; uranium
Abstract:
... Surface charge plays an important role in membrane-based separations of particulates, macromolecules, and dissolved ionic species. In this study, we present two experimental methods to determine the concentration of negatively charged functional groups at the surface of dense polymeric membranes. Both techniques consist of associating the membrane surface moieties with chemical probes, followed by ...
DOI:
10.1016/j.memsci.2011.11.018

20. Diversity in Production of Xylan-Degrading Enzymes Among Species Belonging to the Trichoderma Section Longibrachiatum

Author:
Karolina Toth; Martine P. Van Gool; Henk A. Schols; Gary J. Samuels; Harry Gruppen; George Szakacs
Source:
BioEnergy research 2013 v.6 no.2 pp. 631-643
ISSN:
1939-1234
Subject:
Trichoderma saturnisporum; ionization; raw materials; high performance liquid chromatography; wheat; carbon; mass spectrometry; alcohols; xylanases; cellulose; multienzyme complexes; screening; Eucalyptus; arabinoxylan; xylan; corn; wheat straw; hydrolysis; enzyme activity; biomass; Trichoderma reesei; wood; corn straw; mutants; biodegradation; desorption; fungi
Abstract:
... Xylan is an important part of plant biomass and represents a renewable raw material for biorefineries. Contrary to cellulose, the structure of hemicellulose is quite complex. Therefore, the biodegradation of xylan needs the cooperation of many enzymes. For industrial production of xylanase multienzyme complexes (cocktails) and selected monocomponent xylanases, different Trichoderma reesei mutants ...
DOI:
10.1007/s12155-012-9282-3

21. Effect of Seasonal Storage on Single-Stem Bark Extractives of Norway Spruce (Picea abies)

Author:
Eelis S. Halmemies; Hanna E. Brännström; Juha Nurmi; Otto Läspä; Raimo Alén
Source:
Forests 2021 v.12 no.6 pp. -
ISSN:
1999-4907
Subject:
Picea abies; acid hydrolysis; bark; biorefining; cellulose; forestry; gas chromatography; hemicellulose; hexane; high performance liquid chromatography; hydrophilicity; ionization; lignin content; lipophilicity; methanolysis; sawlogs; solvents; stilbenoids; storage time; summer; temperature; winter
Abstract:
... Increasing the net value of forestry side-streams has both ecological as well as economic benefits for emerging biorefining industries. Spruce bark represents one of the nature’s abundant sources of valuable extractives. In this study, the impact of storage on the quality and quantity of Norway spruce (Picea abies) extractives was examined as a function of storage time, environmental conditions an ...
DOI:
10.3390/f12060736

22. Effect of a Vacuum on the Fast Pyrolysis of Cellulose: Nature of Secondary Reactions in a Liquid Intermediate

Author:
M. Brennan Pecha; Jorge Ivan Montoya; Farid Chejne; Manuel Garcia-Perez
Source:
Industrial & engineering chemistry process design and development 2017 v.56 no.15 pp. 4288-4301
ISSN:
1520-5045
Subject:
cellulose; crosslinking; decarboxylation; evaporation; furfural; gas chromatography; gases; high performance liquid chromatography; hydrogen; ionization; liquids; mass spectrometry; methanol; oils; oligosaccharides; process design; pyrolysis
Abstract:
... Pyrolysis of thin films of cellulose was performed at five pressures from 4 mbar (vacuum) to 1 bar at 500 °C in a modified pyroprobe captive sample reactor designed to minimize gas-phase secondary reactions. Known molecule products were identified and quantified by gas chromatography (GC), GC/mass spectrometry (MS), and high-performance liquid chromatography, and yields were calculated. Vacuum all ...
DOI:
10.1021/acs.iecr.7b00476

23. Effect of the counter-ion on nanocellulose hydrogels and their superabsorbent structure and properties

Author:
Ruth M. Barajas-Ledesma; Laila Hossain; Vanessa N.L. Wong; Antonio F. Patti; Gil Garnier
Source:
Journal of colloid and interface science 2021 v.599 pp. 140-148
ISSN:
0021-9797
Subject:
absorbents; absorption; calcium; carboxylation; cellulose; crosslinking; freeze drying; gelation; hydrogels; hydrogen; ion exchange; ionization; loss modulus; nanofibers; oxidation; rheology; storage modulus; viscoelasticity
Abstract:
... Hypothesis: Carboxylated nanocellulose gels and superabsorbents (SAPs) can be engineered by ion exchange of TEMPO treated cellulose fibers with different cations prior to shearing, thus creating a nanofibrous network ionically cross-linked. The structure and properties of these materials are highly influenced by the type counter-ion used as it controls both the degree of fibrillation and crosslink ...
DOI:
10.1016/j.jcis.2021.04.065

24. Effect of urea on cellulose degradation under conditions of alkaline pulping

Author:
Olga Ershova; Elisabete V. da Costa; António J. S. Fernandes; M. Rosário Domingues; Dmitry V. Evtuguin; Herbert Sixta
Source:
Cellulose 2012 v.19 no.6 pp. 2195-2204
ISSN:
0969-0239
Subject:
Maillard reaction; alkaline pulping; cellobiose; cellulose; ionization; mass spectrometry; nuclear magnetic resonance spectroscopy; peeling; powders; urea
Abstract:
... The effect of urea on the cellulose degradation under conditions of alkaline pulping has been studied using purified cellulose powder. The increased cellulose yield in the presence of urea was assigned essentially to the carbamation reactions which were confirmed by elemental analysis, UV-resonance Raman and solid-state ¹³C nuclear magnetic resonance spectroscopy. The stabilizing effect of urea on ...
DOI:
10.1007/s10570-012-9791-4

25. Effective evaluation of catalytic deoxygenation for in situ catalytic fast pyrolysis using gas chromatography–high resolution mass spectrometry

Author:
D. Paul Cole; Young Jin Lee
Source:
Journal of analytical and applied pyrolysis 2015 v.112 pp. 129-134
ISSN:
0165-2370
Subject:
atmospheric pressure; biofuels; catalysts; catalytic activity; cellulose; chemical composition; commercialization; databases; gas chromatography; ionization; mass spectrometry; pyrolysis
Abstract:
... Effective deoxygenation in catalytic fast pyrolysis (CFP) is crucial for bio-oil stabilization and its successful commercialization. Herein, we utilize a new analytical platform that couples gas chromatography (GC) to dopant-assisted atmospheric pressure chemical ionization (dAPCI) time-of-flight mass spectrometry (TOF MS) to evaluate catalytic deoxygenation of cellulose pyrolysis. Soft ionization ...
DOI:
10.1016/j.jaap.2015.02.008

26. Efficient Conversion of Cellulose to Glucose, Levulinic Acid, and Other Products in Hot Water Using SO2 as a Recoverable Catalyst

Author:
Liu Weina; Hou Yucui; Wu Weize; Liu Zhenyu; Liu Qingya; Tian Shidong; Marsh Kenneth N.
Source:
Industrial & Engineering Chemistry Research 2012 v.51 no.47 pp. 15503-15508
ISSN:
1520-5045
Subject:
Lewis acids; biomass; catalysts; cellulose; engineering; glucose; hydrogen bonding; ionization; ions; levulinic acid; protons; streams; sulfur dioxide; temperature; wastewater
Abstract:
... Cellulose is the most widely distributed source of biomass, and its efficient conversion to a variety of chemicals is important for a sustainable future. In this work, sulfur dioxide (SO₂) dissolved in hot water has been demonstrated to be an efficient catalyst for the selective conversion of cellulose to chemicals such as glucose and levulinic acid. The selectivity of products can be tuned by the ...
DOI:
10.1021/ie302317t

27. Electronic and optical properties of chromophores from bacterial cellulose

Author:
Amit Kumar; Roberto Cardia; Giancarlo Cappellini
Source:
Cellulose 2018 v.25 no.4 pp. 2191-2203
ISSN:
0969-0239
Subject:
benzoquinones; cellulose; cultural heritage; energy; ionization; molecular dynamics; optical properties; solvents; spectral analysis
Abstract:
... We report a systematic computational investigation on the electronic and optical properties of the principal chromophores found in bacterial cellulose (BC). In particular, we focus on the three chromophoric leading structures that were isolated from aged BC (1) 2,5-dihydroxy-[1,4]benzoquinone (2) 5,8-dihydroxy-[1,4]naphthoquinone and (3) 2,5-dihydroxyacetophenone. For the isolated molecules we per ...
DOI:
10.1007/s10570-018-1728-0

28. Electronic and optical properties of chromophores from hexeneuronic acids

Author:
Amit Kumar; Giancarlo Cappellini; Francesco Delogu
Source:
Cellulose 2019 v.26 no.3 pp. 1489-1501
ISSN:
0969-0239
Subject:
acids; bleaching; cellulose; chemical structure; density functional theory; hydrogen peroxide; ionization; optical properties; solvents; spectral analysis
Abstract:
... We report a systematic computational investigation on the electronic and optical properties of chromophores derived from hexeneuronic acids (HexA). In particular, we focus on five chemical structures, which account up to 90% of HexaA-derived chromophores. We performed all-electrons density functional theory (DFT) and time dependent DFT (TDDFT) calculations with a localized Gaussian basis set and t ...
DOI:
10.1007/s10570-018-2174-8

29. Emission of trace gases and organic components in smoke particles from a wildfire in a mixed-evergreen forest in Portugal

Author:
Célia A. Alves; Ana Vicente; Cristina Monteiro; Cátia Gonçalves; Margarita Evtyugina; Casimiro Pio
Source:
Science of the total environment 2011 v.409 no.8 pp. 1466-1475
ISSN:
0048-9697
Subject:
acids; aerosols; alkanes; biomarkers; biopolymers; burning; carbon; carbon dioxide; cellulose; detectors; forests; fuels; gas chromatography; gas emissions; gases; ionization; lignin; mass spectrometry; monoacylglycerols; monosaccharides; particulate emissions; polycyclic aromatic hydrocarbons; smoke; steroids; wildfires; Portugal
Abstract:
... On May 2009, both the gas and particulate fractions of smoke from a wildfire in Sever do Vouga, central Portugal, were sampled. Total hydrocarbons and carbon oxides (CO₂ and CO) were measured using automatic analysers with flame ionisation and non-dispersive infrared detectors, respectively. Fine (PM₂.₅) and coarse (PM₂.₅–₁₀) particles from the smoke plume were analysed by a thermal–optical transm ...
DOI:
10.1016/j.scitotenv.2010.12.025
PubMed:
21277615

30. Enantioselective determination of (R)-zopiclone and (S)-zopiclone (eszopiclone) in human hair by micropulverized extraction and chiral liquid chromatography/high resolution mass spectrometry

Author:
Hajime Miyaguchi; Kenji Kuwayama
Source:
Journal of chromatography 2017 pp. -
ISSN:
0021-9673
Subject:
acetonitrile; ammonium carbonate; ammonium phosphates; buffers; cellulose; enantiomers; humans; ionization; liquid chromatography; liquid-liquid extraction; mass spectrometry; pH; pharmacokinetics; sleep disorders; soaking; spectrometers
Abstract:
... Zopiclone and its (S)-enantiomer (eszopiclone) are commonly prescribed for insomnia. Despite the high demand for enantioselective differentiation, the chiral analysis of zopiclone in hair has not been reported. In this study, a method for the enantioselective quantification of zopiclone in human hair was developed. The extraction medium and duration were optimized using real eszopiclone-positive h ...
DOI:
10.1016/j.chroma.2017.08.058

31. Enhancing the Basicity of Ionic Liquids by Tuning the Cation–Anion Interaction Strength and via the Anion-Tethered Strategy

Author:
Xu Dan; Yang Qiwei; Su Baogen; Bao Zongbi; Ren Qilong; Xing Huabin
Source:
Journal of physical chemistry 2014 v.118 no.4 pp. 1071-1079
ISSN:
1520-5207
Subject:
absorption; acetates; acetylene; bioactive compounds; carbon dioxide; cations; cellulose; energy; hydrogen bonding; ionic liquids; ionization; sulfur dioxide
Abstract:
... Ionic liquids (ILs) with relatively strong basicity often show impressive performance in chemical processes, so it is important to enhance the basicity of ILs by molecular design. Here, we proposed two effective ways to enhance the basicity of ILs: by weakening the cation–anion interaction strength and by employing the anion-tethered strategy. Notably, two quantum-chemical parameters, the most neg ...
DOI:
10.1021/jp4096503

32. Ethanol extraction-based drying enhanced ESR radical detection in oranges irradiated to different ionizing radiations during storage

Author:
Yunhee Jo; Bhaskar Sanyal; Hae-Jun Park; Joong-Ho Kwon
Source:
Postharvest biology and technology 2016 v.112 pp. 170-175
ISSN:
0925-5214
Subject:
X-radiation; cellulose; ethanol; fiber content; fluorescent lighting; free radicals; freeze drying; freezing; gamma radiation; ionization; oranges; solar radiation; spectroscopy; storage time
Abstract:
... The detection of cellulose radicals by ESR spectroscopy in oranges irradiated by different radiation sources has been studied during storage. The peel of oranges was found to be more suitable for ESR analysis in comparison with flesh parts because of its higher fiber and lower moisture contents. The oranges were exposed to gamma ray, electron-beam, and X-ray sources, and the paramagnetic centres w ...
DOI:
10.1016/j.postharvbio.2015.10.005

33. Evaluation of Rice Husk for SPE of Fluoroquinolones from Environmental Waters Followed by UHPLC-HESI-MS/MS

Author:
Federica Maraschi; Andrea Speltini; Michela Sturini; Luana Consoli; Alessio Porta; Antonella Profumo
Source:
Chromatographia 2017 v.80 no.4 pp. 577-583
ISSN:
0009-5893
Subject:
adsorption; aromatic compounds; cellulose; ciprofloxacin; danofloxacin; enrofloxacin; hemicellulose; ionization; levofloxacin; lignin; marbofloxacin; mass spectrometry; monitoring; norfloxacin; pH; rice hulls; river water; silica; solid phase extraction; sorbents; sorption isotherms; ultra-performance liquid chromatography
Abstract:
... Untreated rice husk (RH) was evaluated as solid-phase extraction (SPE) sorbent for Fluoroquinolone antibiotics (FQs). This natural material, made of cellulose, hemicellulose, lignin and silica, and containing various functional groups, i.e., carboxyl, hydroxyl, and amidogen residues, is a potential sorbent material for polar aromatics like FQs. First, the RH capability to adsorb FQ species from wa ...
DOI:
10.1007/s10337-017-3272-8

34. Extraction of cellulose-synthesizing activity of Gluconacetobacter xylinus by alkylmaltoside

Author:
Akira Hashimoto; Kenji Shimono; Yoshiki Horikawa; Tsukasa Ichikawa; Masahisa Wada; Tomoya Imai; Junji Sugiyama
Source:
Carbohydrate research 2011 v.346 no.17 pp. 2760-2768
ISSN:
0008-6215
Subject:
Gluconacetobacter xylinus; bacteria; cell membranes; cellulose; desorption; detergents; ionization; matrix-assisted laser desorption-ionization mass spectrometry; polymerization; polymers
Abstract:
... This study reinvestigated the synthesis of cellulose in vitro with a well-known cellulose-producing bacterium, Gluconacetobacter xylinus. Alkylmaltoside detergents, which are more frequently used in recent structural biological researches, are uniquely used in this study to solubilize cellulose-synthesizing activity from the cell membrane of G. xylinus. Activity comparable to that previously repor ...
DOI:
10.1016/j.carres.2011.09.031

35. Functionalization of cellulose fibers alongside growth of 2D LDH platelets through urea hydrolysis inspired Taro wettability

Author:
Razieh Aladpoosh; Majid Montazer
Source:
Carbohydrate polymers 2022 v.275 pp. 118584
ISSN:
0144-8617
Subject:
Lewis bases; cellulose; cotton; cotton fabric; hydrolysis; hydrophobicity; ionization; leaves; oils; stearic acid; taro; temperature; urea; wettability
Abstract:
... Here, Cotton fabric was functionalized via hybrid coating including 2D MgAl LDH (layered double hydroxide) and SA (stearic acid). The urea hydrolysis was employed for construction of vertically aligned LDH on surface of cellulose fibers under hydrothermal condition. The in situ formation mechanism of LDH on cotton surface was nucleation, growth, and interaction with activated cellulose chains. The ...
DOI:
10.1016/j.carbpol.2021.118584

36. Gold-Nanoparticles-Modified Cellulose Membrane Coupled with Laser Desorption/Ionization Mass Spectrometry for Detection of Iodide in Urine

Author:
Li Yu-Jia; Tseng Yu-Ting; Unnikrishnan Binesh; Huang Chih-Ching
Source:
ACS Applied Materials & Interfaces 2013 v.5 no.18 pp. 9161-9166
ISSN:
1944-8252
Subject:
cellulose; desorption; iodides; ionization; ions; mass spectrometry; nanogold; urine
Abstract:
... We report an efficient method for the determination of iodide (I–) ions by using gold–iodide hybrid cluster ions on gold nanoparticles (Au NPs) modified mixed cellulose ester membrane (Au NPs-MCEM) by pulsed laser desorption/ionization mass spectrometry (LDI-MS). When I– ions were deposited and concentrated on the surfaces of Au NPs (32 nm) via strong Au⁺–I– interaction on the MECM, the Au NPs-MCE ...
DOI:
10.1021/am4025824

37. High-Performance Liquid Chromatography/High-Resolution Multiple Stage Tandem Mass Spectrometry Using Negative-Ion-Mode Hydroxide-Doped Electrospray Ionization for the Characterization of Lignin Degradation Products

Author:
Owen Benjamin C.; Haupert Laura J.; Jarrell Tiffany M.; Marcum Christopher L.; Parsell Trenton H.; Abu-Omar Mahdi M.; Bozell Joseph J.; Black Stuart K.; Kenttämaa Hilkka I.
Source:
Analytical chemistry 2012 v.84 no.14 pp. 6000-6007
ISSN:
1520-6882
Subject:
DNA; biomass; biopolymers; cellulose; chemical structure; elemental composition; hemicellulose; high performance liquid chromatography; ionization; lignin; lignocellulose; oligosaccharides; petroleum; proteins; sodium hydroxide; spectrometers; tandem mass spectrometry
Abstract:
... In the search for a replacement for fossil fuel and the valuable chemicals currently obtained from crude oil, lignocellulosic biomass has become a promising candidate as an alternative biorenewable source for crude oil. Hence, many research efforts focus on the extraction, degradation, and catalytic transformation of lignin, hemicellulose, and cellulose. Unfortunately, these processes result in th ...
DOI:
10.1021/ac300762y

38. Homogeneous benzoylation of cellulose in 1-allyl-3-methylimidazolium chloride: Hammett correlation, mechanism and regioselectivity

Author:
Weiwei Chen; Ye Feng; Mei Zhang; Jin Wu; Jinming Zhang; Xia Gao; Jiasong He; Jun Zhang
Source:
RSC advances 2015 v.5 no.72 pp. 58536-58542
ISSN:
2046-2069
Subject:
cellulose; chlorides; esters; ionic liquids; ionization; nuclear magnetic resonance spectroscopy; organochlorine compounds; reaction mechanisms; regioselectivity; synergism
Abstract:
... Homogeneous benzoylation of cellulose with a series of substituted benzoyl chlorides, in which substituents varied from electron donating to electron withdrawing groups, was investigated in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl). The electronic effect of substituents had a considerable effect on the reaction. A plot of Hammett parameters of substituents vs. degree of substit ...
DOI:
10.1039/c5ra08911e

39. Hyphenation of a carbon analyzer to photo-ionization mass spectrometry to unravel the organic composition of particulate matter on a molecular level

Author:
Jana Grabowsky; Thorsten Streibel; Martin Sklorz; Judith C. Chow; John G. Watson; Athanasios Mamakos; Ralf Zimmermann
Source:
Analytical and bioanalytical chemistry 2011 v.401 no.10 pp. 3153-3164
ISSN:
1618-2642
Subject:
adverse effects; aerosols; biodiesel; carbon; cellulose; combustion; emissions; gasoline; heat; ionization; ions; lignin; lignocellulose; mass spectrometry; particulates; polycyclic aromatic hydrocarbons; spectrometers; temperature; thermal degradation; wood
Abstract:
... The carbonaceous fraction of airborne particulate matter (PM) is of increasing interest due to the adverse health effects they are linked to. Its analytical ascertainment on a molecular level is still challenging. Hence, analysis of carbonaceous fractions is often carried out by determining bulk parameters such as the overall content of organic compounds (OC) and elemental carbon (EC) as well as t ...
DOI:
10.1007/s00216-011-5425-1

40. Identification and purification of the main components of cellulases from a mutant strain of Trichoderma viride T 100-14

Author:
Zhou, Jin; Wang, Yong-Hong; Chu, Ju; Zhuang, Ying-Ping; Zhang, Si-Liang; Yin, Peng
Source:
Bioresource technology 2008 v.99 no.15 pp. 6826-6833
ISSN:
0960-8524
Subject:
proteins; fermentation; glucose; ionization; Trichoderma viride; cellobiose; high performance liquid chromatography; cellulose; endo-1,4-beta-glucanase; hydrolysis; electrophoresis; culture filtrates; fungi
Abstract:
... A new mutant strain of fungus Trichoderma viride T 100-14 was cultivated on 1% microcrystalline cellulose (Avicel) for 120h and the resulting culture filtrate was prepared for protein identification and purification. To identify the predominant catalytic components, cellulases were separated by an adapted two-dimensional electrophoresis technique. The apparent major spots were identified by high p ...
DOI:
10.1016/j.biortech.2008.01.077
PubMed:
18331790

41. Impact of instrumental settings in electrospray ionization ion trap mass spectrometry on the analysis of O-methoxyethyl-O-methyl cellulose: a comprehensive quantitative evaluation

Author:
Sarah Schleicher; Dominik Horoba; Philip Krafzig; Petra Mischnick
Source:
Analytical and bioanalytical chemistry 2022 v.414 no.16 pp. 4727-4743
ISSN:
1618-2642
Subject:
analytical chemistry; cellobiose; cellulose; chemical species; electrospray ionization mass spectrometry; equations; hydrolysis; ionization; polymerization; polymers; quantitative analysis
Abstract:
... The hydroxyethyl substitution along and among the polymer chains of respective cellulose ethers (HEC and HEMC) can be analyzed by ESI-IT-MS after permethylation of the free OH-groups, partial hydrolysis, and mABA labeling. This method requires the correct quantification of the molar ratios of the constituents belonging to a particular degree of polymerization (DP) with respect to their numbers of ...
DOI:
10.1007/s00216-022-04095-3

42. Impact of instrumental settings in electrospray ionization ion trap mass spectrometry on the analysis of multi-CH3-/CD3-isotopologs in cellulose ether analysis: a quantitative evaluation

Author:
Sarah Schleicher; Inka-Rosalia Lottje; Petra Mischnick
Source:
Analytical and bioanalytical chemistry 2022 v.414 no.3 pp. 1279-1296
ISSN:
1618-2642
Subject:
amination; analytical chemistry; benzoic acid; cellulose; electric potential difference; electrospray ionization mass spectrometry; ion transport; ionization; methylation; polymerization; polymers; quantitative analysis; sodium; spectrometers; syringes
Abstract:
... Exact quantification of the molar ratios of isotopologous mixed O-methyl-O-methyl-d₃-cellooligosaccharides (COS) comprising all combinations from fully methylated to fully deuteromethylated constituents within an individual degree of polymerization (DP) is the key step in the analysis of the substituent distribution over the polymer chains in methyl celluloses (MC). Deuteromethylation of MC is per ...
DOI:
10.1007/s00216-021-03767-w

43. Improvement of bacterial cellulose nonwoven fabrics by physical entrapment of lauryl gallate oligomers

Author:
Ji Eun Song; Artur Cavaco-Paulo; Carla Silva; Hye Rim Kim
Source:
Textile research journal 2020 v.90 no.2 pp. 166-178
ISSN:
1746-7748
Subject:
X-ray photoelectron spectroscopy; cellulose; contact angle; desorption; dimensional stability; durability; energy; ionization; laccase; nanofibers; nonwoven fabrics; oligomerization; tensile strength; textile fibers; washing; water uptake
Abstract:
... The present study aimed to improve the properties of bacterial cellulose nonwoven fabrics by physical entrapment of lauryl gallate oligomers. The lauryl gallate oligomerization process was conducted by laccase-mediated oligomerization. Lauryl gallate was chemically confirmed by matrix-assisted laser desorption/ionization with time-of-flight analyses. The oligomerization conditions were controlled ...
DOI:
10.1177/0040517519862886

44. In vitro drug release and percutaneous behavior of poloxamer-based hydrogel formulation containing traditional Chinese medicine

Author:
Wenyi Wang; Patrick C.L. Hui; Elaine Wat; Frency S.F. Ng; Chi-Wai Kan; Xiaowen Wang; Eric C.W. Wong; Huawen Hu; Ben Chan; Clara B.S. Lau; Ping-Chung Leung
Source:
Colloids and surfaces 2016 v.148 pp. 526-532
ISSN:
0927-7765
Subject:
Oriental traditional medicine; atopic dermatitis; cellulose; cortex; fabrics; herbal medicines; hydrocolloids; ionization; kinetics; pH; permeability; sodium; temperature; therapeutics; viscosity
Abstract:
... For the treatment of atopic dermatitis (AD), we have developed a transdermal functionalized textile therapy based on thermosensitive poloxamer 407 (P407) hydrogel containing a traditional Chinese herbal medicine. This study aims to investigate the effects of various formulation variables of P407/carboxymethyl cellulose sodium (P407/CMCs) composite hydrogel on the release of Cortex Moutan (CM) extr ...
DOI:
10.1016/j.colsurfb.2016.09.036

45. Influence of atmospheric pressure plasma treatments on the surface properties of ligno-cellulosic substrates

Author:
William P. Lekobou; Karl R. Englund; Marie-Pierre Laborie; Patrick D. Pedrow
Source:
Holzforschung 2015 v.70 no.1 pp. 55-61
ISSN:
1437-434X
Subject:
Betula; Pinus; acetylene; argon (noble gases); atmospheric pressure; capillarity; cellulose; coatings; electrodes; equations; hydrophilicity; hydrophobicity; ionization; paper; topography; wettability; wood flour
Abstract:
... The paper aims at the investigation of atmospheric pressure weakly ionized plasmas with argon and acetylene to deposit plasma-polymerized coatings on wood veneers (birch, maple), cellulose paper, and pine wood flour to modify their surface properties, in particular their topography and wettability. The treatment was performed in a reactor containing an array of high-voltage needles and a grounded ...
DOI:
10.1515/hf-2014-0211

46. Influence of temperature and time on initial pyrolysis of cellulose and xylan

Author:
David O. Usino; Supriyanto; Päivi Ylitervo; Anita Pettersson; Tobias Richards
Source:
Journal of analytical and applied pyrolysis 2020 v.147 pp. 104782
ISSN:
0165-2370
Subject:
acetaldehyde; biomass; cellulose; gas chromatography-mass spectrometry; heat; ionization; pyrolysis; spectrometers; temperature; volatile compounds; xylan
Abstract:
... The aim of this study was to investigate the effects of temperature and reaction time on the primary pyrolysis of cellulose and xylan. Fast pyrolysis of cellulose and xylan was carried out with a micropyrolyser connected to a gas chromatograph-mass spectrometer/flame ionisation detector (GC–MS/FID) to separate and identify volatile components, both qualitatively and quantitatively. This set-up mea ...
DOI:
10.1016/j.jaap.2020.104782

47. Interpretation of relaxation and swelling phenomena in lyocell regenerated cellulosic fibres and textiles associated with the uptake of solutions of sodium hydroxide

Author:
Ibbett, Roger; Taylor, Jim; Schuster, K. Christian; Cox, Mike
Source:
Cellulose 2008 v.15 no.3 pp. 393-406
ISSN:
0969-0239
Subject:
cellulose; cellulosic fibers; dissociation; gels; hydrogen; ion exchange; ionization; models; polymers; sodium; sodium hydroxide; stress relaxation; woven fabrics
Abstract:
... The uptake of solutions of sodium hydroxide by lyocell fibre results in a phenomenon in textiles described as swelling-shrinkage. The response of woven fabrics in a tensile stress-relaxation experiment shows two time-dependent processes, corresponding to different mechanisms of pressure development. Rapid diffusion has been assigned to osmotic swelling through the interconnected pore structure of ...
DOI:
10.1007/s10570-007-9180-6

48. Investigating catalytic de-oxygenation of cellulose, xylan and lignin bio-oils using HZSM-5 and Fe-HZSM-5

Author:
Chetna Mohabeer; Luis Reyes; Lokmane Abdelouahed; Stéphane Marcotte; Bechara Taouk
Source:
Journal of analytical and applied pyrolysis 2019 v.137 pp. 118-127
ISSN:
0165-2370
Subject:
Fourier transform infrared spectroscopy; biofuels; biomass; carbon dioxide production; catalysts; cellulose; decarboxylation; gas chromatography-mass spectrometry; ionization; lignin; liquids; oils; phenols; porosity; provenance; pyrolysis; surface area; thermal conductivity; xylan
Abstract:
... This study presents a detailed analysis of the liquid and gaseous pyrolytic products of the three principal components of biomass (cellulose, hemicellulose and lignin) using two different catalysts (HZSM-5 and its iron-modification, Fe-HZSM-5). The experiments were conducted in a semi-batch reactor under the same operating conditions for all feed materials. The results allow the determination of t ...
DOI:
10.1016/j.jaap.2018.11.016

49. Ionized calcium requirement of rumen cellulolytic bacteria

Author:
Morales, M.S.; Dehority, B.A.
Source:
Journal of dairy science 2009 v.92 no.10 pp. 5079-5091
ISSN:
0022-0302
Subject:
calcium; dietary minerals; ionization; nutrient requirements; rumen bacteria; ruminant nutrition; Fibrobacter succinogenes; Ruminococcus; cellulose; cellulolytic microorganisms
Abstract:
... Ionized calcium (Ca⁺²) appears to be required by the 3 predominant species of rumen cellulolytic bacteria, Fibrobacter succinogenes, Ruminococcus flavefaciens, and Ruminococcus albus. The present study evaluated the role of ionized calcium in growth and cellulose digestion. Maximum growth or rate and extent of digestion and lag time were the criteria used to evaluate Ca⁺² requirements. All culture ...
DOI:
10.3168/jds.2009-2130
PubMed:
19762826

50. Isolation and identification of a whey protein-sourced calcium-binding tripeptide Tyr-Asp-Thr

Author:
Lina Zhao; Xixi Cai; Shunli Huang; Shaoyun Wang; Yifan Huang; Jing Hong; Pingfan Rao
Source:
International dairy journal 2015 v.40 pp. 16-23
ISSN:
0958-6946
Subject:
amino acid sequences; anion exchange chromatography; binding sites; calcium; cellulose; chelates; dietary supplements; gel chromatography; high performance liquid chromatography; hydrolysates; ionization; mass spectrometry; molecular weight; oxygen; protein hydrolysates; whey; whey protein
Abstract:
... A tripeptide peptide with strong calcium-binding capacity was isolated and purified from whey protein hydrolysates using diethylaminoethyl cellulose anion-exchange chromatography, Sephadex G-25 gel filtration, semi-preparative reversed-phase (RP) high-performance liquid chromatography (HPLC) and analytical HPLC. It was identified using liquid chromatography-electrospray ionisation mass spectrometr ...
DOI:
10.1016/j.idairyj.2014.08.013

51. Life cycle assessment of bioethanol production from cattle manure

Author:
Amaro de Azevedo; Franccesca Fornasier; Mateus da Silva Szarblewski; Rosana de Cassia de Souza Schneider; Michele Hoeltz; Diego de Souza
Source:
Journal of cleaner production 2017 v.162 pp. 1021-1030
ISSN:
0959-6526
Subject:
acidification; agricultural land; bioethanol; biomass; cattle manure; cellulose; climate change; computer software; drying; ecosystems; ecotoxicology; emissions; energy; environmental impact; enzymatic hydrolysis; ethanol production; eutrophication; fermentation; fossil fuels; freshwater; fuel production; glucose; human health; humans; ionization; ionizing radiation; land use change; life cycle impact assessment; lignocellulose; oxidants; ozone depletion; particulates; photochemistry; raw materials; sodium phosphate; sulfuric acid; toxicity; Brazil
Abstract:
... Biofuels can contribute significantly to reducing environmental damage. Lignocellulosic bioethanol can be an alternative to fossil fuels and is of great strategic importance to Brazil. In this context, the life cycle assessment (LCA) of bioethanol production from cattle manure (CM) was studied. CM is a biomass rich in cellulose that can be converted to glucose and other fermentable sugars. In the ...
DOI:
10.1016/j.jclepro.2017.06.141

52. MALDI-TOF/MS analyses of decomposition behavior of beech xylan as treated by semi-flow hot-compressed water

Author:
Yu Nakahara; Kazuchika Yamauchi; Shiro Saka
Source:
Journal of wood science 2014 v.60 no.3 pp. 225-231
ISSN:
1435-0211
Subject:
Fagus crenata; acetic acid; cellulose; desorption; hydrolysis; ionization; mass spectrometry; temperature; xylan; xylooligosaccharides
Abstract:
... Japanese beech (Fagus crenata) was treated with semi-flow hot-compressed water at various temperatures of 150–230 °C under 10 MPa. The obtained various products were then analyzed with matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF/MS). In a temperature range of 150 °C up to 210 °C, however, no hydrolyzed products were found, and at 210 °C/10 MPa, O-acetyl- ...
DOI:
10.1007/s10086-014-1396-0

53. Magnetic Bead Cellulose as a Suitable Support for Immobilization of α-Chymotrypsin

Author:
Petr Prikryl; Jiri Lenfeld; Daniel Horak; Marie Ticha; Zdenka Kucerova
Source:
Applied biochemistry and biotechnology 2012 v.168 no.2 pp. 295-305
ISSN:
0273-2289
Subject:
cellulose; digestion; enzymatic reactions; gastric juice; humans; ionization; lasers; magnetite; mass spectrometry; pH; pepsin; proteolysis; swine; temperature; viscose
Abstract:
... Magnetic bead cellulose was prepared by a suspension method from the mixture of viscose and magnetite using thermal sol–gel transition and regeneration of cellulose. The prepared magnetic particles after their activation with divinyl sulfone were shown to be suitable magnetic carrier for immobilization of α-chymotrypsin and for its application in proteomic studies. The specific activity of the ...
DOI:
10.1007/s12010-012-9772-y

54. Mapping of cell wall aromatic moieties and their effect on hygroscopic movement in the awns of stork’s bill

Author:
Yael Abraham; Yonghui Dong; Asaph Aharoni; Rivka Elbaum
Source:
Cellulose 2018 v.25 no.7 pp. 3827-3841
ISSN:
0969-0239
Subject:
Erodium; awns; cell adhesion; cell walls; cellulose; chemical composition; crosslinking; ferulic acid; fluorescence; hemicellulose; humidity; hydrophobicity; image analysis; ionization; lignin; microscopy; moieties; seed dispersal; seeds; sowing; white light
Abstract:
... The awn in stork’s bill (Erodium gruinum) seed dispersal units coils as it dries. This hygroscopic movement promotes the dissemination and sowing of the seeds. Here we aimed to understand the movement rate, by correlating water dynamics within the awn to the spatial variation in the chemical composition of the awn’s cell walls. We followed the hygroscopic movement visually and measured the kinetic ...
DOI:
10.1007/s10570-018-1852-x

55. Mass Spectrometry Imaging: An Expeditious and Powerful Technique for Fast in Situ Lignin Assessment in Eucalyptus

Author:
Araújo Pedro; Ferreira Mônica Siqueira; de Oliveira Diogo Noin; Pereira Luciano; Sawaya Alexandra Christine Helena Frankland; Catharino Rodrigo Ramos; Mazzafera Paulo
Source:
Analytical chemistry 2014 v.86 no.7 pp. 3415-3419
ISSN:
1520-6882
Subject:
Eucalyptus; bioethanol; cellulose; computer software; fermentation; image analysis; ionization; lignin; mass spectrometry; phytomass; silica; solvents; stems; thin layer chromatography
Abstract:
... Plant biomass has been suggested as an alternative to produce bioethanol. The recalcitrance of plant biomass to convert cellulose into simpler carbohydrates used in the fermentation process is partially due to lignin, but the standard methods used to analyze lignin composition frequently use toxic solvents and are laborious and time-consuming. MS imaging was used to study lignin in Eucalyptus, sin ...
DOI:
10.1021/ac500220r

56. Mass Spectrometry and Nuclear Magnetic Resonance Spectroscopy Study of Carbohydrate Decomposition by Hydrothermal Liquefaction Treatment: A Modeling Approach on Bio-oil Production from Organic Wastes

Author:
Croce Annamaria; Battistel Ezio; Chiaberge Stefano; Spera Silvia; Reale Samantha; De Angelis Francesco
Source:
Energy & Fuels 2015 v.29 no.9 pp. 5847-5856
ISSN:
1520-5029
Subject:
atmospheric pressure; biofuels; cellulose; decarboxylation; furfural; gas chromatography-mass spectrometry; gases; glucose; ionization; liquefaction; models; nuclear magnetic resonance spectroscopy; organic wastes; oxidation; polymerization; stable isotopes
Abstract:
... Glucose and cellulose as model compounds were treated under hydrothermal liquefaction (HTL) conditions to describe the main reaction pathways that are involved in the process. The HTL-derived phases (gas phase, bio-oil, aqueous phase, and solid residue) were fully characterized by a combination of analytical techniques [i.e., elemental analysis (EA), gas chromatography–mass spectrometry (GC–MS), e ...
DOI:
10.1021/acs.energyfuels.5b01204

57. Microscopic reaction mechanism for CO2 gasification of cellulose based on reactive force field molecular dynamics simulations

Author:
Yunhui Pang; Xiaoli Zhu; Ning Li; Haigang Wang; Yuehuan Li; Yibo Liu; Zhenbo Wang
Source:
Renewable energy 2022 pp. -
ISSN:
0960-1481
Subject:
biogasification; biomass; carbon; carbon dioxide; cellulose; dissociation; energy; glycosidic linkages; hydrogen; ionization; molecular dynamics; oxygen; reaction mechanisms; renewable energy sources
Abstract:
... Gasification is the key process of biomass conversion and utilization, which has been proved to be one of the most promising technologies. In this study, the CO₂ gasification process of cellulose was explored by reactive force field molecular dynamics simulations. Firstly, the distribution of average local ionization energy was analyzed. The results showed that the oxygen and hydrogen atoms might ...
DOI:
10.1016/j.renene.2022.09.078

58. Miniature Flow-Through Low-Temperature Plasma Ionization Source for Ambient Ionization of Gases and Aerosols

Author:
Spencer Sandra E.; Santiago Brandon G.; Glish Gary L.
Source:
Analytical chemistry 2015 v.87 no.23 pp. 11887-11892
ISSN:
1520-6882
Subject:
aerosols; caffeine; cellulose; gases; ionization; ions; pyrolysis
Abstract:
... The design and operation of an inexpensive, miniature low-temperature plasma ion source is detailed. The miniature low-temperature plasma ion source is operated in a “flow-through” configuration, wherein the gaseous or aerosolized analyte, caffeine or pyrolyzed ethyl cellulose, in a carrier gas is used as the plasma gas. In this flow-through configuration, the sensitivity for the caffeine standard ...
DOI:
10.1021/acs.analchem.5b03447

59. Molecular characterization and optical properties of primary emissions from a residential wood burning boiler

Author:
Xiangrui Kong; Christian Mark Salvador; Staffan Carlsson; Ravikant Pathak; Kent O. Davidsson; Michael Le Breton; Samuel Mwaniki Gaita; Kalyan Mitra; Åsa M. Hallquist; Mattias Hallquist; Jan B.C. Pettersson
Source:
Science of the total environment 2021 v.754 pp. 142143
ISSN:
0048-9697
Subject:
absorption; biomass; carbon; cellulose; chemical composition; climate; combustion; data analysis; environment; factor analysis; hemicellulose; ionization; lignin; pyrolysis; spectrometers; uncertainty; wood
Abstract:
... Modern small-scale biomass burners have been recognized as an important renewable energy source because of the economic and environmental advantages of biomass over fossil fuels. However, the characteristics of their gas and particulate emissions remain incompletely understood, and there is substantial uncertainty concerning their health and climate impacts. Here, we present online measurements co ...
DOI:
10.1016/j.scitotenv.2020.142143

60. Molecular-Level Understanding of the Major Fragmentation Mechanisms of Cellulose Fast Pyrolysis: An Experimental Approach Based on Isotopically Labeled Model Compounds

Author:
Zaikuan J. Yu; Mckay W. Easton; Priya Murria; Lan Xu; Duanchen Ding; Yuan Jiang; Jifa Zhang; Hilkka I. Kenttämaa
Source:
Journal of organic chemistry 2019 v.84 no.11 pp. 7037-7050
ISSN:
1520-6904
Subject:
ammonium; atmospheric pressure; carbon; cellobiose; cellulose; cleavage (chemistry); glycosides; glycosidic linkages; hydrolysis; ionization; isotope labeling; models; organic chemistry; organic compounds; pyrolysis; spectrometers; stable isotopes
Abstract:
... Evaluation of the feasibility of various mechanisms possibly involved in cellulose fast pyrolysis is challenging. Therefore, selectively ¹³C-labeled cellotriose, ¹⁸O-labeled cellobiose, and ¹³C- and ¹⁸O-doubly-labeled cellobiose were synthesized and subjected to fast pyrolysis in an atmospheric pressure chemical ionization source of a linear quadrupole ion trap/orbitrap mass spectrometer. The init ...
DOI:
10.1021/acs.joc.9b00723

61. Molecularly imprinted polymer (MIP) membrane assisted direct spray ionization mass spectrometry for agrochemicals screening in foodstuffs

Author:
Igor Pereira; Marcella Ferreira Rodrigues; Andréa Rodrigues Chaves; Boniek Gontijo Vaz
Source:
Talanta 2018 v.178 pp. 507-514
ISSN:
0039-9140
Subject:
2,4,5-T; 2,4-D; adsorbents; agrochemicals; apples; bananas; cellulose; diuron; food contamination; foods; fruit extracts; grapes; ionization; mass spectrometry; monuron; paper; pesticide residues; polymers; screening; solid phase microextraction
Abstract:
... Paper spray ionization (PSI) has some limitations such as low sensitivity and ionization suppression when complex samples are analyzed. The use of sample preparation devices directly coupled to MS can avoid these restrictions. Molecularly imprinted polymers (MIPs) are materials widely used as adsorbent in sample preparation methods such as solid-phase extraction and solid-phase microextraction, an ...
DOI:
10.1016/j.talanta.2017.09.080

62. Novel instrumentation for tracking molecular products in fast pyrolysis of carbohydrates with sub-second temporal resolution

Author:
Carolyn P. Hutchinson; D. Paul Cole; Erica A. Dalluge; Evan A. Larson; Young Jin Lee
Source:
Journal of analytical and applied pyrolysis 2018 v.136 pp. 107-114
ISSN:
0165-2370
Subject:
aerosols; alpha-cyclodextrin; biomass; cellulose; gas chromatography-mass spectrometry; glucose; instrumentation; ionization; monitoring; pyrolysis; spectrometers
Abstract:
... Despite recent advances, little has been experimentally established regarding the detailed chemical processes that occur during biomass pyrolysis reactions. We developed a new technique that allows for the monitoring of each molecular product from fast pyrolysis with ∼0.2 s temporal resolution. This was achieved by directly coupling a micropyrolyzer with a time-of-flight mass spectrometer via a so ...
DOI:
10.1016/j.jaap.2018.10.017

63. O-acetyl galactoglucomannan esters for barrier coatings

Author:
Victor Kisonen; Chunlin Xu; Roger Bollström; Jonas Hartman; Hille Rautkoski; Maristiina Nurmi; Jarl Hemming; Patrik Eklund; Stefan Willför
Source:
Cellulose 2014 v.21 no.6 pp. 4497-4509
ISSN:
0969-0239
Subject:
anhydrides; cellulose; coatings; conception; desorption; dispersions; esterification; esters; food packaging; high performance liquid chromatography; ionization; matrix-assisted laser desorption-ionization mass spectrometry; nuclear magnetic resonance spectroscopy; rapeseed oil; solvents; water vapor
Abstract:
... A major enhancement of grease and water vapor barrier properties was accomplished with a 1–10 g/m² coating of O-acetyl galactoglucomannan (GGM) ester or with GGM coatings applied as water dispersions on cartonboard. GGMs were esterified with phthalic and benzoic anhydrides, respectively. The novel phthalic esters of GGM (GGM-Ph) were characterized with HPLC, NMR, and matrix-assisted laser desorpti ...
DOI:
10.1007/s10570-014-0428-7

64. On-Line Process Analysis of Biomass Flash Pyrolysis Gases Enabled by Soft Photoionization Mass Spectrometry

Author:
Fendt Alois; Streibel Thorsten; Sklorz Martin; Richter Daniel; Dahmen Nicolaus; Zimmermann Ralf
Source:
Energy & Fuels 2012 v.26 no.1 pp. 701-711
ISSN:
1520-5029
Subject:
biochar; biofuels; biomass; cellulose; cluster analysis; energy; feedstocks; gases; gasification; ionization; lignin; mass spectrometry; monitoring; phenol; pyrolysis; temperature
Abstract:
... In the current discussion about future energy and fuel supply based on regenerative energy sources, the so-called second-generation biofuels represent a vitally important contribution for the provision of carbon-based fuels. In this framework, at the Karlsruhe Institute of Technology (KIT), the bioliq process has been developed, by which biomass is flash-pyrolyzed at 500 °C for the production of s ...
DOI:
10.1021/ef2012613

65. Online Analysis of Biomass Pyrolysis Tar by Photoionization Mass Spectrometry

Author:
Jia Liangyuan; Le Brech Yann; Mauviel Guillain; Qi Fei; Bente-von Frowein Matthias; Ehlert Sven; Zimmermann Ralf; Dufour Anthony
Source:
Energy & Fuels 2016 v.30 no.3 pp. 1555-1563
ISSN:
1520-5029
Subject:
argon (noble gases); biomass; cellulose; combustion; energy; gasification; hemicellulose; ionization; lignin; mass spectrometry; photons; principal component analysis; pyrolysis; vapors
Abstract:
... The online analysis of volatiles from biomass pyrolysis (or gasification or combustion) is interesting because it has the ability to sample the volatiles directly from their reactive environment. The photon ionization (PI) is an efficient and soft ionization method for online analysis of biomass pyrolysis volatiles. Here, we review recent developments conducted in our groups on PI–mass spectrometr ...
DOI:
10.1021/acs.energyfuels.5b02274

66. Oxidation and structural changes in NMMO-regenerated cellulose films

Author:
Ralf Zimmermann; Yvonne Müller; Uwe Freudenberg; Dieter Jehnichen; Antje Potthast; Thomas Rosenau; Carsten Werner
Source:
Cellulose 2016 v.23 no.6 pp. 3535-3541
ISSN:
0969-0239
Subject:
acids; aqueous solutions; cellulose; cellulosic materials; chemical interactions; crystal structure; films (materials); ionization; molecular weight; oxidation; uronic acids
Abstract:
... Carbonyl and carboxyl groups introduced by oxidative processes during production and purification of celluloses determine intra- and intermolecular interactions and thus application-related bulk and surface properties of cellulosic materials. We report a comprehensive approach to the quantification of carboxyl and carbonyl groups in cellulose films upon reconstitution from NMMO solutions. Measurem ...
DOI:
10.1007/s10570-016-1084-x

67. Personalized monitoring of therapeutic salicylic acid in dried blood spots using a three-layer setup and desorption electrospray ionization mass spectrometry

Author:
Markus Siebenhaar; Kai Küllmer; Nuno Miguel de Barros Fernandes; Volker Hüllen; Carsten Hopf
Source:
Analytical and bioanalytical chemistry 2015 v.407 no.23 pp. 7229-7238
ISSN:
1618-2642
Subject:
aspirin; blood; cellulose; desorption; detection limit; electrospray ionization mass spectrometry; ionization; monitoring; patients; pharmacokinetics; salicylic acid; volunteers
Abstract:
... Desorption electrospray ionization (DESI) mass spectrometry is an emerging technology for direct therapeutic drug monitoring in dried blood spots (DBS). Current DBS methods require manual application of small molecules as internal standards for absolute drug quantification. With industrial standardization in mind, we superseded the manual addition of standard and built a three-layer setup for robu ...
DOI:
10.1007/s00216-015-8887-8

68. Phenolic composition and antioxidant activity of kenaf leaves

Author:
Andreia Pascoal; Rosa Quirantes-Piné; Ana Luisa Fernando; Efi Alexopoulou; Antonio Segura-Carretero
Source:
Industrial crops and products 2015 v.78 pp. 116-123
ISSN:
0926-6690
Subject:
Hibiscus cannabinus; antioxidants; biopharmaceuticals; cellulose; chemical composition; chlorogenic acid; functional foods; herbaceous plants; high performance liquid chromatography; ionization; kaempferol; kenaf; leaf extracts; leaves; mass spectrometry; oxygen radical absorbance capacity; phenolic compounds; quercetin; seeds; Portugal
Abstract:
... Kenaf (Hibiscus cannabinus L.) is a short day, annual, herbaceous plant producing high quality cellulose. Kenaf is a valuable fiber crop that is cultivated for its fibrous stem. Recently, seeds and leaves have been also considered as a source of industrial products, such as biopharmaceuticals. However, their pharmacological effects and chemical composition are still poorly studied.In this context, ...
DOI:
10.1016/j.indcrop.2015.10.028

69. Primary interactions of biomass components during fast pyrolysis

Author:
David O. Usino; Päivi Ylitervo; Adrian Moreno; Mika Henrikki Sipponen; Tobias Richards
Source:
Journal of analytical and applied pyrolysis 2021 v.159 pp. 105297
ISSN:
0165-2370
Subject:
biomass; cellulose; furans; hemicellulose; ionization; lignin; pyrolysis; spectrometers
Abstract:
... Fast pyrolysis is an industrially attractive method to produce fuels and chemicals from biomass; however, to gain better control over the process, the reactions and interactions between the components and decomposition products need elucidation. This study investigated primary reactions during fast pyrolysis of biomass. Pyrolysis of the three main biomass components (cellulose, hemicellulose and l ...
DOI:
10.1016/j.jaap.2021.105297

70. Properties and stabilization mechanism of oil-in-water Pickering emulsions stabilized by cellulose filaments

Author:
Chuanwei Miao; Siham Atifi; Wadood Y. Hamad
Source:
Carbohydrate polymers 2020 v.248 pp. 116775
ISSN:
0144-8617
Subject:
additives; cellulose; cellulose microfibrils; cellulose nanofibers; emulsifiers; emulsifying properties; emulsions; energy; ionization; lignin; mechanical methods; nanocrystals; pH; personal care products; refining; surfactants; wood pulp
Abstract:
... Cellulose filaments (CFs) are produced from wood-pulp fibres through solely mechanical treatment. They are inhomogeneous materials comprising both relatively large fibre fragments and fine fibrils. CFs can stabilize oil-in-water medium- and high-internal phase Pickering emulsions, where the presence of fibre fragments plays a critical role in emulsion stabilization by preventing CF fibrils from fo ...
DOI:
10.1016/j.carbpol.2020.116775

71. Proteomic analysis of Clostridium thermocellum ATCC 27405 reveals the upregulation of an alternative transhydrogenase–malate pathway and nitrogen assimilation in cells grown on cellulose

Author:
Euan Burton; Vincent J.J. Martin
Source:
Canadian journal of microbiology 2012 v.58 no.12 pp. 1378-1388
ISSN:
1480-3275
Subject:
Clostridium thermocellum; NAD (coenzyme); NADP (coenzyme); ammonia; bacteria; biochemical pathways; biomass; carbon; cell membranes; cellobiose; cellulose; ethanol; glutamate dehydrogenase; guanosine triphosphate; hydrogen; ionization; isotope labeling; liquid chromatography; nitrogen; proteins; proteomics; pyruvic acid; stable isotopes; tandem mass spectrometry
Abstract:
... Clostridium thermocellum is a Gram-positive thermophilic anaerobic bacterium with the ability to directly convert cellulosic biomass into useful products such as ethanol and hydrogen. In this study, a quantitative comparative proteomic analysis of the organism was performed to identify proteins and biochemical pathways that are differentially utilized by the organism after growth on cellobiose or ...
DOI:
10.1139/cjm-2012-0412

72. Purification, identification, and in vitro antioxidant activities of selenium-containing proteins from selenium-enriched brown rice

Author:
Kunlun Liu; Yan Zhao; Fusheng Chen; Zhenxin Gu; Guanhao Bu
Source:
European food research & technology 2012 v.234 no.1 pp. 61-68
ISSN:
1438-2377
Subject:
agarose; anion exchange; antioxidant activity; brown rice; cellulose; chromatography; crude protein; desorption; filtration; gels; ionization; lasers; mass spectrometry; molecular weight; polyacrylamide gel electrophoresis; proteins; sodium dodecyl sulfate
Abstract:
... Selenium-enriched brown rice (Se-BR) has been reported to accumulate Se mainly in its proteins. Purification of selenium-containing proteins (Se-Ps) from Se-BR and their in vitro antioxidant activities were investigated in this study. Sephadex G-100 gel filtration and diethylaminoethyl cellulose Sepharose Fast Flow anion-exchange chromatography were used to purify the major Se-Ps from the crude pr ...
DOI:
10.1007/s00217-011-1609-3

73. Pyrolysis of lignocellulosic biomass: Molecular-level insights with online ultrahigh-resolution mass spectrometry

Author:
Zhongyue Zhou; Linyu Zhu; Cunhao Cui; Haoran Liu; Yang Shen; Wenhao Yuan; Fei Qi
Source:
Fuel processing technology 2022 v.236 pp. 107439
ISSN:
0378-3820
Subject:
atmospheric pressure; biomass; cellulose; hemicellulose; ionization; lignin; lignocellulose; mass spectrometry; pyrolysis; reaction mechanisms
Abstract:
... Pyrolysis is a feasible way to convert lignocellulosic biomass into renewable fuels and chemicals. Comprehensive elucidation of chemical compositions of both intermediates and final products of biomass pyrolysis at the molecular level is essential to understanding the reaction mechanism, which may help to improve this sustainable process. Because biomass pyrolysis product is such a complicated mix ...
DOI:
10.1016/j.fuproc.2022.107439

74. Reactive Thread Spray Mass Spectrometry for Localization of C═C Bonds in Free Fatty Acids: Applications for Obesity Diagnosis

Author:
Devin J. Swiner; Dmytro S. Kulyk; Hannah Osae; George R. Durisek III; Abraham K. Badu-Tawiah
Source:
Analytical chemistry 2022 v.94 no.5 pp. 2358-2365
ISSN:
1520-6882
Subject:
ambient temperature; analytical chemistry; body mass index; cellulose; electric potential difference; epoxidation reactions; free fatty acids; ionization; liquids; mass spectrometry; obesity; reactive oxygen species; solvents
Abstract:
... Cellulose thread substrates offer a platform for microsampling and reactive ionization of free fatty acid (FFA) isomers for direct differentiation by mass spectrometry. Ambient corona discharge forms when direct current high voltage is applied to the tiny subfibers on the thread substrate in the presence of a polar spray solvent (MeOH/H₂O, 2:1, v/v), facilitating chemical reactions across a C═C bo ...
DOI:
10.1021/acs.analchem.1c03270

75. Recyclable and CO₂-retardant Zn–air batteries based on CO₂-decorated highly conductive cellulose electrolytes

Author:
Qinbo Liu; Xu Ou; Legeng Li; Xiang Wang; Jin Wen; Yingjie Zhou; Feng Yan
Source:
Journal of materials chemistry A 2022 v.10 no.22 pp. 12235-12246
ISSN:
2050-7496
Subject:
batteries; carbon dioxide; cellulose; electrochemistry; electrolytes; electronic equipment; energy use and consumption; fossil fuels; gels; glucose; hydrogen; ionization; polymers; raw materials
Abstract:
... The ever-increasing fossil fuel consumption and portable electronic device proliferation have caused numerous environmental challenges in terms of producing massive carbon dioxide (CO₂) emissions and end-of-life wastes. Incorporating naturally abundant resources into the recyclable and renewable battery components at the design stage has, therefore, become essential. Cellulose (CC) is an attractiv ...
DOI:
10.1039/d2ta02197h

76. Revealing the chemistry of biomass pyrolysis by means of tunable synchrotron photoionisation-mass spectrometry

Author:
Anthony Dufour; Junjie Weng; Liangyuan Jia; Xiaofeng Tang; Baptiste Sirjean; René Fournet; Hervé Le Gall; Nicolas Brosse; Francis Billaud; Guillain Mauviel; Fei Qi
Source:
RSC advances 2013 v.3 no.14 pp. 4786-4792
ISSN:
2046-2069
Subject:
Miscanthus; ash content; biofuels; biomass; catalytic activity; cellulose; energy; intermediate product; ionization; ions; lignin; mass spectrometry; photons; pyrolysis; temperature; xylan
Abstract:
... “Imaging” biomass conversion: pyrolysis is the first reaction involved in all thermal processes for biofuels and green chemicals production. Synchrotron light ionisation and mass spectrometry is used for the first time to investigate biomass pyrolysis. The soft and tunable ionisation source coupled with ab initio calculations reveals chemical mechanisms and new major intermediate species. This met ...
DOI:
10.1039/c3ra40486b

77. A Rice Family 9 Glycoside Hydrolase Isozyme with Broad Substrate Specificity for Hemicelluloses in Type II Cell Walls

Author:
Yoshida, Kouki; Komae, Kozo
Source:
Plant & cell physiology 2006 v.47 no.11 pp. 1541-1554
ISSN:
0032-0781
Subject:
rice; substrate specificity; lasers; enzymes; Oryza sativa; ionization; polyacrylamide gel electrophoresis; chromatography; isoelectric point; genes; anion exchange; mass spectrometry; 2,4-D; roots; cell walls; glucose; cellulose; molecular weight; arabinoxylan; xylan; polymerization; amino acid sequences; auxins; oligosaccharides; isoelectric focusing; proteins; desorption
Abstract:
... An auxin analog, 2,4-D, stimulates the activity of endo-1,4-β-glucanase (EGase) in rice (Oryza sativa L.). The auxin-induced activity from three protein fractions was purified to homogeneity from primary root tissues (based on SDS-PAGE and isoelectric focusing after Coomassie brilliant blue staining). Amino acid sequencing indicated that the 20 N-terminal amino acid sequence of the three proteins ...
DOI:
10.1093/pcp/pcl020
PubMed:
17056618

78. Solvatochromic and protolytic properties of the indicators in the solidified gelatin gel medium

Author:
Olga Yu. Konovalova; Elena A. Reshetnyak; Tatiana B. Pochinok; Polina V. Anisimovich; Nataliya А. Nikitina; Nataliya V. Ivchenko
Source:
Colloids and surfaces 2017 v.529 pp. 26-32
ISSN:
0927-7757
Subject:
absorption; acetone; aqueous solutions; betaine; cationic surfactants; cellulose; dyes; ethanol; gelatin; glass; ionization; isoelectric point; pH; propylene; solvents
Abstract:
... Fixed on the transparent triacetate cellulose substrate of the commercial film, the solidified gelatin gel was used for the immobilization of acid-base and solvatochromic betaine dyes. The results of microscopic studies showed that while immobilizing the reagents, the structure and morphology of the gel don’t change. Indicators are distributed uniformly in the gelatin layer of the film. Polarity p ...
DOI:
10.1016/j.colsurfa.2017.05.035

79. Source and Biological Response of Biochar Organic Compounds Released into Water; Relationships with Bio-Oil Composition and Carbonization Degree

Author:
Ghidotti Michele; Fabbri Daniele; Mašek Ondřej; Mackay Colin Logan; Montalti Marco; Hornung Andreas
Source:
Environmental Science & Technology 2017 v.51 no.11 pp. 6580-6589
ISSN:
1520-5851
Subject:
biochar; biofuels; carbonization; carboxylic acids; cellulose; corn stover; fluorescence emission spectroscopy; gas chromatography; germination; hydrophilicity; hydrophobicity; ionization; lignocellulose; lipids; mass spectrometry; plant growth; pyrolysis; roots; seedlings; shoots; temperature; vapors
Abstract:
... Water-soluble organic compounds (WSOCs) were extracted from corn stalk biochar produced at increasing pyrolysis temperatures (350–650 °C) and from the corresponding vapors, collected as bio-oil. WSOCs were characterized by gas chromatography (semivolatile fraction), negative electron spray ionization high resolution mass spectrometry (hydrophilic fraction) and fluorescence spectroscopy. The patter ...
DOI:
10.1021/acs.est.7b00520

80. Speciation of Metals in Asphaltenes by High-Performance Thin-Layer Chromatography and Solid–Liquid Extraction Hyphenated with Elemental and Molecular Identification

Author:
Rémi Moulian; Martha Chacón-Patiño; Oscar Lacroix-Andrivet; Sandra Mounicou; Anna Luiza Mendes Siqueira; Carlos Afonso; Ryan Rodgers; Pierre Giust; Brice Bouyssiere; Caroline Barrère-Mangote
Source:
Energy & fuels 2020 v.34 no.10 pp. 12449-12456
ISSN:
1520-5029
Subject:
asphaltenes; atomic absorption spectrometry; cellulose; desorption; energy; fractionation; ionization; liquids; mass spectrometry; petroleum; solvents; thin layer chromatography; vanadyl ions
Abstract:
... Asphaltenes are among the most challenging components in petroleum processing because they contain high amounts of heteroatoms (i.e., S, N, O, V, and Ni) thought to be responsible for strong aggregation tendencies, precipitation, and fouling problems. The role of vanadium- and nickel-containing petroleum compounds (i.e., petroporphyrins) in aggregation and fouling is not completely understood beca ...
DOI:
10.1021/acs.energyfuels.0c02525

81. Strong cationic polyelectrolyte adsorption on a water swollen cellulosic biomaterial and its relevance on microstructure and rheological properties

Author:
Joel Wallecan; Stephane J. J. Debon
Source:
Cellulose 2018 v.25 no.8 pp. 4437-4451
ISSN:
0969-0239
Subject:
adsorption; biobased products; cell walls; cellulose; environmental factors; ionic strength; ionization; ions; microstructure; pH; pectins; rheological properties; texturization
Abstract:
... A multiscale approach was taken to study the swelling and viscosifying properties of a cellulose-rich biomaterial as a function of environmental conditions. First, the impact of pH and ionic strength on the surface properties of the fiber was investigated by means of potentiometry and cationic polyelectrolyte adsorption. Three adsorption regimes were identified: the first one occurred in acidic co ...
DOI:
10.1007/s10570-018-1887-z

82. Structure retention of proteins interacting electrostatically with TEMPO-oxidized cellulose nanofiber surface

Author:
Atsushi Yamaguchi; Hiroaki Sakamoto; Takeo Kitamura; Masayuki Hashimoto; Shin-ichiro Suye
Source:
Colloids and surfaces 2019 v.183 pp. 110392
ISSN:
0927-7765
Subject:
adsorption; biocompatible materials; bovine serum albumin; cellulose; cellulose nanofibers; cellulosic fibers; electrostatic interactions; ionization; isoelectric point; lysozyme; moieties; oxidation; pH; pulp; surface area
Abstract:
... In this study, we evaluated the adsorption of proteins to 2,2,6,6-tetramethylpiperidine-1-oxyl oxidized cellulose nanofibers (TOCNs) and their structures on the TOCN surface. TOCNs derived from bleached pulp are as thin as 4 nm and have a very high specific surface area and a high density of surface carboxyl groups. The adsorption of two model proteins (lysozyme (Lyz) and bovine serum albumin (BSA ...
DOI:
10.1016/j.colsurfb.2019.110392

83. Subcritical Water: A Method for Green Production of Cellulose Nanocrystals

Author:
Novo Lísias P.; Bras Julien; García Araceli; Belgacem Naceur; Curvelo Antonio A. S.
Source:
ACS sustainable chemistry 2015 v.3 no.11 pp. 2839-2846
ISSN:
2168-0485
Subject:
X-ray diffraction; acids; cellulose; corrosion; crystal structure; extrusion; heat tolerance; hemicellulose; hydrolysis; industrialization; ionization; nanocrystals; temperature; thermal stability; washing
Abstract:
... In the present study, an innovative method to produce cellulose nanocrystals is proposed. The conventional production of nanocrystals uses concentrated solutions of strong acids to promote the hydrolysis of cellulose amorphous regions and hemicelluloses. However, in the conventional method, long duration washing steps and the nanocrystals low temperature resistance still limit their larger industr ...
DOI:
10.1021/acssuschemeng.5b00762

84. Toward Controlled Ionization Conditions for ESI-FT-ICR-MS Analysis of Bio-Oils from Lignocellulosic Material

Author:
Hertzog Jasmine; Carré Vincent; Le Brech Yann; Dufour Anthony; Aubriet Frédéric
Source:
Energy & Fuels 2016 v.30 no.7 pp. 5729-5739
ISSN:
1520-5029
Subject:
grasses; hemicellulose; fractionation; lignocellulose; plantations; pyrolysis; ionization; wood; liquefaction; cellulose; mass spectrometry; biofuels; agricultural wastes; feedstocks; biomass; lignin
Abstract:
... Pyrolysis or liquefaction processes can be applied to lignocellulosic biomass to produce a bio-oil which allows the access of green chemicals or sustainable energy. Among the different existing resources, this raw material has the advantage to come from nonfood feedstocks such as agricultural wastes (wood, grass, ...) or dedicated plantations. Whatever the considered bio-oil, the development of hi ...
DOI:
10.1021/acs.energyfuels.6b00655

85. ZnO nanoparticles doped polyamide nanocomposite coated on cellulose paper as a novel sorbent for ultrasound-assisted thin film microextraction of organophosphorous pesticides in aqueous samples

Author:
Zahra Ayazi; Fatemeh Shekari Esfahlan; Zahra Monsef Khoshhesab
Source:
Analytical methods 2018 v.10 no.25 pp. 3043-3051
ISSN:
1759-9679
Subject:
X-ray diffraction; cellulose; chemical species; chlorpyrifos; detection limit; edifenphos; energy-dispersive X-ray analysis; ethion; experimental design; fenthion; gas chromatography; ionization; microextraction; models; nanocomposites; nanoparticles; paper; phosalone; polyamides; scanning electron microscopy; solvents; sorbents; ultrasonic treatment; zinc oxide
Abstract:
... In this work, a novel thin film based on ZnO nanoparticles (ZnO NPs) incorporated into polyamide (PA) has been designed and prepared. For this purpose, the ex situ prepared ZnO NPs were dispersed into PA solution and the obtained solvent blend was deposited onto cellulose paper applying a solvent exchange method. The characterization of the prepared ZnO NPs/PA nanocomposite was performed applying ...
DOI:
10.1039/c8ay00934a

86. A chiral high-performance liquid chromatography–tandem mass spectrometry method for the stereospecific analysis of enoyl-coenzyme A hydratases/isomerases

Author:
Ahmad M. Abdel-Mawgoud; François Lépine; Eric Déziel
Source:
Journal of chromatography 2013 v.1306 no. pp. 37-43
ISSN:
0021-9673
Subject:
Escherichia coli; Pseudomonas aeruginosa; bacteria; carbon; cellulose; fatty acids; high performance liquid chromatography; ionization; isomerases; monitoring; quantitative analysis; secondary metabolites; tandem mass spectrometry; urethane
Abstract:
... The enzymes catalyzing the stereospecific hydration of 2-enoyl-CoA into the corresponding S- or R-3-hydroxyacyl-CoA are named enoyl-CoA hydratases (ECH), where the S-specific is called ECH-1 and the R-specific is called ECH-2. Current ECH assays are mostly based on spectrophotometric methods. Amongst many limitations, these methods do not directly measure the 3-hydroxyacyl-CoA produced, neither do ...
DOI:
10.1016/j.chroma.2013.07.049

87. A comparative study of microporous polyolefin silica-based paper and cellulose paper substrates utilizing paper spray-mass spectrometry in drug analysis

Author:
Imesha W. De Silva; Darren T. Converse; Lauren A. Juel; Guido F. Verbeck
Source:
Analytical methods 2019 v.11 no.24 pp. 3066-3072
ISSN:
1759-9679
Subject:
cellulose; chromatography; comparative study; detection limit; drugs; hydrophobicity; industry; ionization; mass spectrometry; paper; polyolefin; porosity; porous media; solvents
Abstract:
... This comparative study proposes an efficient technique by employing a synthetic substrate, which is commercially available, for direct, sensitive, efficient and fast analysis in Paper Spray Mass Spectrometry (PS-MS). The Teslin® substrate is a well-known synthetic paper used in the printing industry, and it is made with a single-layered, microporous polyolefin–silica matrix. Currently, filter pape ...
DOI:
10.1039/c9ay00641a

88. A critique on the structural analysis of lignins and application of novel tandem mass spectrometric strategies to determine lignin sequencing

Author:
Joseph Banoub; Guo‐Hua Delmas Jr.; Nicolas Joly; Grahame Mackenzie; Nadja Cachet; Bouchra Benjelloun‐Mlayah; Michel Delmas
Source:
Journal of mass spectrometry 2015 v.50 no.1 pp. 5-48
ISSN:
1076-5174
Subject:
atmospheric pressure; biomass; cellulose; cellulosic fibers; chemical structure; chemical treatment; desorption; enzymatic hydrolysis; hemicellulose; hydrolysis; ionization; lignin; lignocellulose; mass spectrometry; molecular weight; vegetables
Abstract:
... This review is devoted to the application of MS using soft ionization methods with a special emphasis on electrospray ionization, atmospheric pressure photoionization and matrix‐assisted laser desorption/ionization MS and tandem MS (MS/MS) for the elucidation of the chemical structure of native and modified lignins. We describe and critically evaluate how these soft ionization methods have contrib ...
DOI:
10.1002/jms.3541

89. An efficient route towards a new branched tetrahydrofurane δ-sugar amino acid from a pyrolysis product of cellulose

Author:
Defant, Andrea; Mancini, Ines; Torri, Cristian; Malferrari, Danilo; Fabbri, Daniele
Source:
Amino acids 2011 v.40 no.2 pp. 633-640
ISSN:
0939-4451
Subject:
amino acids; cellulose; desorption; ionization; mass spectrometry; models; nuclear magnetic resonance spectroscopy; pyrolysis
Abstract:
... (1R,5S)-1-Hydroxy-3,6-dioxa-bicyclo[3.2.1]octan-2-one, is a bicyclic lactone obtained in gram-scale by catalytic pyrolysis of the renewable source cellulose. Now it has been used as a chiral building block in the preparation of the new δ-sugar amino acid, (3R,5S)-5-(aminoethyl)-3-hydroxytetrahydrofurane-3-carboxylic acid, by an efficient synthesis in five steps with a 67% overall yield. The struct ...
DOI:
10.1007/s00726-010-0690-4

90. A methodological approach for the simultaneous quantification of glycerol and fatty acids from cork suberin in a single GC run

Author:
António V. Marques; Helena Pereira
Source:
Phytochemical analysis 2019 v.30 no.6 pp. 687-699
ISSN:
0958-0344
Subject:
Quercus suber; biopolymers; cellulose; cork; fatty acids; ferulic acid; gas chromatography; glycerol; ionization; lignin; methanolysis; phytochemicals; solvents; suberin
Abstract:
... INTRODUCTION: Suberin, as part of plant protective barriers, is one of the most important natural polymers after cellulose and lignin. For a full elucidation of suberin structure the quantification of glycerol, fatty α,ω‐diacids and ω‐hydroxyacids, the major building blocks of suberin, is of primary importance. Glycerol is often lost in the most used analytical procedures or rarely determined by d ...
DOI:
10.1002/pca.2846

91. A nonlinear isotherm model for sorption of anionic dyes on cellulose fibers: A case study

Author:
Changhai Xu; Wenjuan Tang; Jinmei Du
Source:
Carbohydrate polymers 2014 v.102 pp. 808-812
ISSN:
0144-8617
Subject:
case studies; cellulose; cellulosic fibers; cotton; dyes; ionization; models; oxidation; sorption
Abstract:
... The sorption data of an anionic dye on cellulose fiber are often correlated with a log-linear model to determine the internal accessible volume of the fiber to the anionic dye (V, L/kg) and as such the standard affinity of the anionic dye to the fiber (−Δμ°, J/mol), but without taking into account the influence of ionized carboxyl groups due to cellulose oxidation ([COO−]f, mol/kg). In this study, ...
DOI:
10.1016/j.carbpol.2013.10.086

92. A novel solid-state fractionation of naphthenic acid fraction components from oil sands process-affected water

Author:
Mohamed H. Mohamed; Lee D. Wilson; Jaimin R. Shah; Jon Bailey; Kerry M. Peru; John V. Headley
Source:
Chemosphere 2015 v.136 pp. 252-258
ISSN:
0045-6535
Subject:
Acacia; activated carbon; atomic absorption spectrometry; biochar; biomass; cellulose; cost effectiveness; electrospray ionization mass spectrometry; fractionation; goethite; ionization; leaching; magnetite; methanol; naphthenates; oil sands; oils; potassium; rice hulls; solvents; temperature
Abstract:
... Various sorbent materials were evaluated for the fractionation of naphthenic acid fraction components (NAFCs) from oil sand process-affected water (OSPW). The solid phase materials include activated carbon (AC), cellulose, iron oxides (magnetite and goethite), polyaniline (PANI) and three types of biochar derived from biomass (BC-1; rice husks, BC-2; acacia low temperature and BC-3; acacia high te ...
DOI:
10.1016/j.chemosphere.2015.05.029

93. pH‐Controlled network formation in a mixture of oppositely charged cellulose nanocrystals and poly(allylamine)

Author:
Patrick Martin; Gleb Vasilyev; Guang Chu; Mor Boas; Arkadii Arinstein; Eyal Zussman
Source:
Journal of polymer science 2019 v.57 no.22 pp. 1527-1536
ISSN:
0887-6266
Subject:
adsorption; amines; cellulose; ionization; light scattering; nanocrystals; pH; polymers
Abstract:
... The behavior of a mixture of negatively charged cellulose nanocrystals (CNCs) and positively charged poly(allylamine) (PAAm) is examined in aqueous media. By modulating the pH, the acting Coulomb forces can be varied that can lead not only to adsorption of PAAm chains on the CNC surface but also to the development of a supermolecular structure by bridging of CNC rods by extended PAAm chains. This ...
DOI:
10.1002/polb.24898

94. A practical and efficient synthesis of methyl levulinate from cellulosic biomass catalyzed by an aluminum-based mixed acid catalyst system

Author:
K. Tominaga; K. Nemoto; Y. Kamimura; A. Yamada; Y. Yamamoto; K. Sato
Source:
RSC advances 2016 v.6 no.69 pp. 65119-65124
ISSN:
2046-2069
Subject:
methanol; ionization; wood; catalysts; cellulose; aluminum; sulfonic acids; sulfonates; biomass; catalytic activity; aluminum compounds
Abstract:
... Methyl levulinate is a promising building block which can be derived from cellulosic biomass. In this paper, a combination of aluminum compounds and organic sulfonic acids was found to be an efficient catalyst system for direct methyl levulinate synthesis from both microcrystalline cellulose and wood powder. Electrospray ionization mass analysis revealed the formation of aluminum sulfonate complex ...
DOI:
10.1039/c6ra15638j

95. A rapid method for the determination of levoglucosan in NIST standard reference material 1649a by HPLC-MS/MS

Author:
Francesca Buiarelli; Patrizia Di Filippo; Donatella Pomata; Carmela Riccardi; Giulia Simonetti
Source:
Atmospheric environment 2018 v.195 pp. 24-29
ISSN:
1352-2310
Subject:
air pollution; atmospheric chemistry; biomass; burning; cellulose; combustion; derivatization; detection limit; dust; emissions; fires; gas chromatography-mass spectrometry; ionization; liquid chromatography; particulates; rapid methods; tandem mass spectrometry; temperature; ultrasonics; urban areas; Italy
Abstract:
... The biomass burning marker levoglucosan is produced via combustion of woody cellulose at temperature over 300 °C, and is hence widely used to trace fires or discriminate urban air pollution sources. In this context, it is very useful the availability of a standard reference material (SRM) with a certified value of levoglucosan, to check the quality, reliability and accuracy of the measurements.To ...
DOI:
10.1016/j.atmosenv.2018.09.051

96. A study of thermo-hydro-treated (THT) birch wood by chemical analysis and Py-GC/MS

Author:
Ingeborga Andersone; Galina Dobele; Bruno Andersons; Nina Kurnosova; Edgars Kuka; Aleksandrs Volperts; Juris Grinins
Source:
Holzforschung 2019 v.73 no.7 pp. 653-661
ISSN:
1437-434X
Subject:
Betula; acetone; carbon dioxide; cellulose; chemical analysis; gas chromatography-mass spectrometry; hemicellulose; ionization; lignin; lignin content; methanol; pyrolysis; temperature; wood
Abstract:
... The chemical changes in birch wood occurring at thermo-hydro treatment (THT) was studied at temperatures (T) of 150, 160 and 170°C by analytical pyrolysis [Py-gas chromatography/mass spectrometry/flame ionisation detector (GC/MS/FID)], elemental analysis and traditional wet-chemical analysis. THT wood (THTW) was also extracted with acetone. Mass losses (ML) due to THT and acetone extraction of THT ...
DOI:
10.1515/hf-2018-0169

97. γ-Irradiation crosslinking of graphene oxide/cellulose nanofiber/poly (acrylic acid) hydrogel as a urea sensing patch

Author:
Nichaphat Passornraprasit; Tatiya Siripongpreda; Sumalee Ninlapruk; Nadnadda Rodthongkum; Pranut Potiyaraj
Source:
International journal of biological macromolecules 2022 v.213 pp. 1037-1046
ISSN:
0141-8130
Subject:
cellulose; color; colorimetry; crosslinking; desorption; graphene oxide; hydrogels; ionization; kidney diseases; mass spectrometry; nanocomposites; nanofibers; sweat; urea
Abstract:
... Poly (acrylic acid) (PAA) nanocomposite hydrogel was fabricated as a sensing patch for non-invasive dual detection of urea in sweat. The hydrogel was prepared by γ-irradiation crosslinking of PAA solution incorporated with graphene oxide (GO) and cellulose nanofiber (CNF). With high water-sorption capacity and transparency, the hydrogel was suitable to accommodate coloring reagents and enzymes for ...
DOI:
10.1016/j.ijbiomac.2022.06.053