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1. Aggregation of egg white peptides (EWP) induced by proanthocyanidins: A promising fabrication strategy for EWP emulsion

Author:
Hedi Wen; Zihao Li; Yuchen Li; Yanrui Hao; Zhiyang Du; Xuanting Liu; Xiaomin Shang; Jingbo Liu; Ting Zhang
Source:
Food chemistry 2023 v.400 pp. 134019
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; adsorption; calorimetry; contact angle; egg albumen; emulsifiers; emulsifying; emulsions; fluorescence emission spectroscopy; food chemistry; hydrogen; hydrophobicity; peptides; proanthocyanidins; surface tension; titration
Abstract:
... Egg-white peptides (EWP, <1 kDa) have been shown to possess various bioactive properties. However, poor emulsification of EWP limits its application in functional foods. In this study, EWP aggregation induced by proanthocyanidins (PC) contributed to the improvement of emulsion properties. The two-step binding process of PC-EWP-EWP was confirmed by isothermal titration calorimetry, fluorescence spe ...
DOI:
10.1016/j.foodchem.2022.134019

2. Alkylsuccinylated oxidized cellulose-based amphiphiles as a novel multi-purpose ingredient for stabilizing O/W emulsions

Author:
Ziqian Li; Sampson Anankanbil; Linlin Li; Jiabao Lyu; Marcin Nadzieja; Zheng Guo
Source:
Food hydrocolloids 2023 v.134 pp. 108014
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; antioxidant activity; antioxidants; bioactive compounds; cellulose; contact angle; droplet size; fish; fractionation; gel chromatography; hydrocolloids; hydrophobicity; ingredients; moieties; nanocrystals; nanoemulsions; nuclear magnetic resonance spectroscopy; oxidation; surfactants
Abstract:
... A novel type of emulsifiers (STOC- SAC0, SAC8 & SAC12) were synthesized from nature-abundant cellulose by a two-step process: preparartion of soluble cellulose by TEMPO-mediated oxidation of cellulosic nanocrystal and fractionation (STOC), and introduction of hydrophobic moiety by alkyl (C0, C8 & C12)succinylation of resulting soluble polysaccharides. The synthetic products were structurally verif ...
DOI:
10.1016/j.foodhyd.2022.108014

3. Anaerobic co-digestion of thermo-alkaline pretreated microalgae and sewage sludge: Methane potential and microbial community

Author:
Jiaqi Fu; Bing Yan; Shuanglin Gui; Yinxuan Fu; Song Xia
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 133-142
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; Methanobacterium; Methanosarcina; anaerobic digestion; community structure; methane; methane production; methanogens; microalgae; microbial communities; sewage sludge; thermogravimetry; China
Abstract:
... To improve methane production from sewage sludge (SS), co-digestion of SS and microalgae (MA) was studied and the application of thermo-alkaline pretreatment to MA was evaluated. The results showed that thermo-alkaline pretreatment at 90°C for 120 min on MA was the optimum pretreatment condition. Furthermore, when the volatile solids (VS) ratio of SS and MA was 1:2, the methane yield reached maxim ...
DOI:
10.1016/j.jes.2022.04.020

4. Application of magnetic carbon nanotube composite nanospheres in magnetic solid-phase extraction of trace perfluoroalkyl substances from environmental water samples

Author:
Xin-Li Song; Hui Lv; Ke-Chao Liao; Dong-Dong Wang; Gui-Mei Li; Yi-Yao Wu; Qian-Yu Chen; Yue Chen
Source:
Talanta 2023 v.253 pp. 123930
ISSN:
0039-9140
Subject:
Fourier transform infrared spectroscopy; carbon; carbon nanotubes; electron microscopy; experimental design; magnetism; nanospheres; perfluorocarbons; solid phase extraction; sorbents; tandem mass spectrometry; ultra-performance liquid chromatography
Abstract:
... The layer-by-layer assembly technique was used to synthesize novel multiwalled carbon nanotubes (MWCNTs) on magnetic carbon (Fe₃O₄@C) nanospheres, which were then used to extract six perfluoroalkyl substances (PFAS) in environmental real water samples using ultra high-performance liquid chromatography coupled to tandem mass spectrometry. The as-synthesized sorbent MWCNTs@Fe₃O₄@C was employed for m ...
DOI:
10.1016/j.talanta.2022.123930

5. Casein phosphopeptide-calcium chelate: Preparation, calcium holding capacity and simulated digestion in vitro

Author:
Ying Wang; Huasong Bai; Songjun Wang; Ruixue Wang; Zhanzhong Wang
Source:
Food chemistry 2023 v.401 pp. 134218
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; antioxidant activity; bioavailability; calcium; calcium phosphates; casein; digestion; electron microscopy; energy-dispersive X-ray analysis; food chemistry; gastrointestinal system; humans; in vitro digestion; phosphopeptides; solubility
Abstract:
... In this work, CPP-Ca chelate was synthesized by chelating casein phosphopeptide (CPP) and calcium and characterized by Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) Energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The antioxidant activity and calcium holding capacity of CPP-Ca were evaluated and its secondary structure transition was monitored ...
DOI:
10.1016/j.foodchem.2022.134218

6. Characterization of whey protein isolate-(−)-epigallocatechin-3-gallate conjugates prepared by non-enzymatic and enzymatic methods and their application in stabilizing β-carotene emulsion

Author:
Weijun Chen; Jiayu Zhu; Wenjun Wang; Dayu Liu; Yin Zhang; Yuncheng Li; Fanbing Meng; Wei Zhang; Donghong Liu
Source:
Food chemistry 2023 v.399 pp. 133727
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; alkali treatment; antioxidant activity; antioxidants; crosslinking; emulsions; encapsulation; enzymes; epigallocatechin gallate; fluorescence; food chemistry; free radicals; oxidation; polyacrylamide gel electrophoresis; whey protein isolate
Abstract:
... (−)-Epigallocatechin-3-gallate (EGCG) was conjugated to whey protein isolate (WPI) using alkaline treatment, free radical grafting and tyrosinase-catalyzed oxidation. The structure and properties of the obtained conjugates and their application as antioxidant emulsifiers in stabilizing β-carotene emulsion were systematically characterized. Fourier transform infrared spectroscopy and sodium dodecyl ...
DOI:
10.1016/j.foodchem.2022.133727

7. Chitosan microspheres-based controlled release nitrogen fertilizers enhance the growth, antioxidant, and metabolite contents of Chinese cabbage

Author:
Jiahua Ma; Yahya Faqir; Yunlong Chai; Sanmei Wu; Tong Luo; Shiyu Liao; Abdul Rasheed Kaleri; Chengjia Tan; Yuxin Qing; Mohammad Talib Kalhoro; Niaz Umer; Wazir Hadir
Source:
Scientia horticulturae 2023 v.308 pp. 111542
ISSN:
0304-4238
Subject:
Chinese cabbage; Fourier transform infrared spectroscopy; antioxidants; cell respiration; chitosan; crosslinking; denitrification; economic sustainability; electron microscopy; emulsifying; evaporation; flavonoids; fluorescence; irrigation; leaf length; metabolites; microparticles; nitrogen; photosynthesis; plant growth; plant height; polyphenols; porosity; runoff; seed germination; stomatal conductance; sugars; surface water; urea; urea fertilizers; volatilization; water flow
Abstract:
... Agriculture lands have low fertilizer retention owing to porosity and irrigation, whereas a significant portion of fertilizer is lost through denitrification, volatilization, surface run-off, and leaching, causing losses of nutrients to air and ground/surface water. Urea fertilizer readily enhances the agricultural yield but also deteriorates the quality of fertile soils. To combat such problems, ...
DOI:
10.1016/j.scienta.2022.111542

8. Construction of a flower-like SnS2/SnO2 junction for efficient photocatalytic CO2 reduction

Author:
Feifei You; Yunan Zhou; Danyang Li; Hao Zhang; Dawei Gao; Xiaohong Ma; Rui Hao; Juzhe Liu
Source:
Journal of colloid and interface science 2023 v.629 pp. 871-877
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; absorption; carbon dioxide; energy; lighting; nanosheets; photocatalysis; photocatalysts; photoreduction; semiconductors; value added
Abstract:
... Photoreduction of CO₂ to value-added chemicals and fuels is an attractive solution to alleviate environmental problems and energy crisis at the same time. However, engineering efficient photocatalysts with high activity and product selectivity is still challenging. Herein, we achieved three-dimensional (3D) spatial configuration design at micro-scale and heterogeneous interface construction at nan ...
DOI:
10.1016/j.jcis.2022.09.134

9. Creation of a new proof-of-concept pectin/lysozyme nanocomplex as potential β-lactose delivery matrix: Structure and thermal stability analyses

Author:
Magner Pessoa da Silva; Thiécla Katiane Osvaldt Rosales; Lucas de Freitas Pedrosa; João Paulo Fabi
Source:
Food hydrocolloids 2023 v.134 pp. 108011
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; bioavailability; cell proliferation; colorectal neoplasms; encapsulation; galacturonans; galectins; hydrocolloids; hydrogen; intestines; lactose; lysozyme; molecular weight; neoplasm cells; pH; particle size; pectins; temperature; thermal stability; toxicity
Abstract:
... Lactose is a disaccharide and has many uses in food and non-food formulations. Its anomeric form, β-lactose, is a natural inhibitor of the galectin-3 protein, which is responsible for several pathological effects (e.g., colon cancer cell proliferation). However, lactose cannot be orally administered since it is rapidly hydrolyzed by intestinal lactases. Therefore, the development of nanosystems fr ...
DOI:
10.1016/j.foodhyd.2022.108011

10. Development and characterization of ultrastable emulsion gels based on synergistic interactions of xanthan and sodium stearoyl lactylate

Author:
Chunhuan Liu; Yunxing Li; Rong Liang; Hong Sun; Lei Wu; Cheng Yang; Yuanfa Liu
Source:
Food chemistry 2023 v.400 pp. 133957
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; electrostatic interactions; emulsifiers; emulsions; food chemistry; hydrophobicity; oil-water interface; oils; pH; polymers; rheology; sodium; temperature; viscoelasticity; xanthan gum; zeta potential
Abstract:
... Emulsion gels with the mixtures of low-molecular-weight emulsifier (LME) and polymer have attracted much attention in food; however, the LME-polymer interactions in emulsion system are complex and unclear. Here, the interactions between SSL and xanthan in emulsions and the mechanisms of stabilizing emulsions were investigated by using tensiometry, zeta potential, Fourier transform infrared spectro ...
DOI:
10.1016/j.foodchem.2022.133957

11. Effect of catechin and tannins on the structural and functional properties of sodium alginate/gelatin/ poly(vinylalcohol) blend films

Author:
Yuanyuan Liu; Yifan Zhang; Meiyang Zhen; Yuangen Wu; Meihu Ma; Yuxin Cheng; Yongguo Jin
Source:
Food hydrocolloids 2023 v.135 pp. 108141
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; antioxidant activity; antioxidants; catechin; crosslinking; gelatin; hydrocolloids; nuclear magnetic resonance spectroscopy; polymers; polyphenols; rheological properties; sodium alginate; tensile strength; water solubility; water vapor
Abstract:
... The catechin and tannins as crosslinking and antioxidant compounds were added into sodium alginate/gelatin/poly(vinyl alcohol) (SA/GEL/PVA) blend film with 0.5%, 2%, and 5% (based on the total mass of polymers), respectively. This study aims to investigate the effect of different polyphenols on the structural and functional properties of food packaging film. Molecular interactions among polyphenol ...
DOI:
10.1016/j.foodhyd.2022.108141

12. Effects of kappa-carrageenan on egg white ovalbumin for enhancing the gelation and rheological properties via electrostatic interactions

Author:
Yuzhu Mao; Min Huang; Jiapei Bi; Duowen Sun; Hongliang Li; Hongshun Yang
Source:
Food hydrocolloids 2023 v.134 pp. 108031
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; egg albumen; electrostatic interactions; gelation; hydrocolloids; kappa carrageenan; models; ovalbumin; turbidity; viscosity; zeta potential
Abstract:
... The protein-polysaccharide system is natural, and it has been widely applied in food manufacturing in recent years. However, the interactions in the system might be affected by numerous factors and this research investigated the effects of κ-carrageenan (κ-C) on the structure, interaction, and rheological characteristics of egg white ovalbumin (OVA) before and after heating. The zeta potential was ...
DOI:
10.1016/j.foodhyd.2022.108031

13. Enhanced gelling properties and hydration capacity of ginkgo seed proteins by genipin cross-linking

Author:
Zhendong He; Changqi Liu; Jing Zhao; Fengxian Guo; Yaosong Wang
Source:
Food chemistry 2023 v.399 pp. 133924
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; Ginkgo; crosslinking; electrophoresis; fluorescence; food chemistry; gels; hardness; hydrophobicity; pH; protein isolates; solubility
Abstract:
... The present study investigated the effects of genipin cross-linking on the gelling properties of ginkgo seed protein isolate (GSPI). Cross-linking of GSPI was achieved with different concentrations (0, 0.05, 0.1, 0.2, 0.4, 0.6% w/v) of genipin at pH 6.0. Compared to pure GSPI, genipin treatment led to lower solubility, surface hydrophobicity, and fluorescence intensity, while promoted protein aggr ...
DOI:
10.1016/j.foodchem.2022.133924

14. Experimental and numerical simulation of multi-component combustion of typical no-charring material

Author:
Yanming Ding; Gonghua Jiang; Kazui Fukumoto; Mengqi Zhao; Xueting Zhang; Changjian Wang; Changhai Li
Source:
Energy 2023 v.262 pp. 125555
ISSN:
0360-5442
Subject:
Fourier transform infrared spectroscopy; calorimeters; combustion; energy; mathematical models; prediction; pyrolysis; thermogravimetry
Abstract:
... To predict the direct combustion of no-charring material, multiple pyrolysis gas components, which are closer to the real produced pyrolysis gases, are involved in the numerical simulation. The pyrolysis gas components are obtained by thermogravimetry coupled with fourier transform infrared spectroscopy experiments, and then several main components are chosen to be directly imported into the follo ...
DOI:
10.1016/j.energy.2022.125555

15. Fabrication of self-antibacterial chitosan/oxidized starch polyelectrolyte complex sponges for controlled delivery of curcumin

Author:
Ecaterina Stela Dragan; Claudiu Augustin Ghiorghita; Maria Valentina Dinu; Ioana A. Duceac; Sergiu Coseri
Source:
Food hydrocolloids 2023 v.135 pp. 108147
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; adsorption; anions; aqueous solutions; chitosan; curcumin; electron microscopy; electrostatic interactions; energy-dispersive X-ray analysis; freeze drying; hydrocolloids; oxidation; pH; potato starch; rice starch; starch
Abstract:
... Herein, we present novel porous polyelectrolyte complexes (PECs) physically stabilized by electrostatic interaction between chitosan (CS) and oxidized starch of two sources, i.e. potato starch (OxPS), and rice starch (OxRS). Two strategies were employed for the preparation of PECs sponges: (i) freeze-thawing of CS aqueous solution followed by freeze-drying and adsorption of the polyanion solution, ...
DOI:
10.1016/j.foodhyd.2022.108147

16. Fluorine-doped BiVO4 photocatalyst: Preferential cleavage of C−N bond for green degradation of glyphosate

Author:
Yunlong Chen; Yingping Huang; Hailin Tian; Liqun Ye; Ruiping Li; Chuncheng Chen; Zhongxu Dai; Di Huang
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 60-68
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; absorption; adsorption; glyphosate; human health; pH; photocatalysts; photolysis; toxicity; China
Abstract:
... With increasing concerns on the environment and human health, the degradation of glyphosate through the formation of less toxic intermediates is of great importance. Among the developed methods for the degradation of glyphosate, photodegradation is a clean and efficient strategy. In this work, we report a new photocatalyst by doping F ion on BiVO₄ that can efficiently degrade glyphosate and reduce ...
DOI:
10.1016/j.jes.2022.04.013

17. Goat milk proteins enriched with Agaricus blazei Murrill ss. Heinem extracts: Electrophoretic, FTIR, DLS and microstructure characterization

Author:
Dušanka A. Popović Minić; Danijel D. Milinčić; Stefan Kolašinac; Vladislav Rac; Jovana Petrović; Marina Soković; Nebojša Banjac; Jelena Lađarević; Bojana B. Vidović; Aleksandar Ž. Kostić; Vladimir B. Pavlović; Mirjana B. Pešić
Source:
Food chemistry 2023 v.402 pp. 134299
ISSN:
0308-8146
Subject:
Agaricus subrufescens; Fourier transform infrared spectroscopy; electron microscopy; electrophoresis; food chemistry; glycosides; goat milk; hydrogen; hydrophobicity; microstructure; milk; milk proteins; particle size; polypeptides; polysaccharides; proteolysis
Abstract:
... This study aimed to characterize mixtures of goat milk proteins and Agaricus blazei Murrill (ABM) extracts (aqueous, AE and polysaccharides, PE). The mixtures showed stable particles with ζ-potential more negative than −41.1 mV. The addition of AMB extracts to goat milk did not result in a significant particle size change, whereas their addition to heated goat milk significantly increased mean par ...
DOI:
10.1016/j.foodchem.2022.134299

18. Heterogeneous uptake of NO2 by sodium acetate droplets and secondary nitrite aerosol formation

Author:
Wen-Xiu Pei; Shuai-Shuai Ma; Zhe Chen; Yue Zhu; Shu-Feng Pang; Yun-Hong Zhang
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 320-327
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; acetates; aerosols; hydrolysis; nitrites; nitrogen; relative humidity; sodium acetate; volatilization; China
Abstract:
... The high NO₃⁻ concentration in fine particulate matters (PM₂.₅) during heavy haze events has attracted much attention, but the formation mechanism of nitrates remains largely uncertain, especially concerning heterogeneous uptake of NOX by aqueous phase. In this work, the heterogeneous uptake of NO₂ by sodium acetate (NaAc) droplets with different NO₂ concentrations and relative humidity (RH) condi ...
DOI:
10.1016/j.jes.2022.05.048

19. In-situ-reduced synthesis of cyano group modified g-C3N4/CaCO3 composite with highly enhanced photocatalytic activity for nicotine elimination

Author:
Chenxiao Qi; Haixiang Chen; Xiufang Chen; Chengyu Chu; Xueting Mei; Wangyang Lu; Nan Li
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 517-530
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; air; carbon nitride; cyanides; graphene; nicotine; nitrogen; photocatalysis; polymerization; semiconductors; China
Abstract:
... Graphite carbon nitride has many excellent properties as a two-dimensional semiconductor material so that it has a wide application prospect in the field of photocatalysis. However, the traditional problems such as high recombination rate of photogenerated carriers limit its application. In this work, we introduce nitrogen deficiency into g-C₃N₄ to solve this problem a simple and safe in-situ redu ...
DOI:
10.1016/j.jes.2022.03.019

20. Insights into the formation of carboxymethyl chitosan-nisin nanogels for sustainable antibacterial activity

Author:
Chunhua Wu; Zijian Zhi; Mengxia Duan; Jishuang Sun; Haixin Jiang; Jie Pang
Source:
Food chemistry 2023 v.402 pp. 134260
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; antibacterial properties; biopreservatives; chitosan; crosslinking; food chemistry; food industry; hydrogen; nanogels; nisin; particle size; simulation models; transmission electron microscopy; zeta potential
Abstract:
... To improve the sustainable antibacterial active of nisin, nisin-loaded carboxymethyl chitosan (CMCS-nisin) nanogels (CN NGs) are prepared via a combination method of electrostatic self-assembly and chemical cross-linking. The as-prepared CN NGs are profiled using dynamic light scattering, zeta potential, transmission electron microscopy, fourier transform infrared spectroscopy (FT-IR) and X-ray ph ...
DOI:
10.1016/j.foodchem.2022.134260

21. Multi-microscopy techniques combined with FT-IR spectroscopy reveals the histological and biochemical causes leading to fruit texture difference in oriental melon (Cucumis melo var. Makuwa Makino)

Author:
Haobin Pan; Meng Li; Tao Liu; Hongyan Qi
Source:
Food chemistry 2023 v.402 pp. 134229
ISSN:
0308-8146
Subject:
Cucumis melo; Fourier transform infrared spectroscopy; cell adhesion; cell walls; cultivars; food chemistry; fruit texture; hemicellulose; histology; melons; polygalacturonic acid; water solubility
Abstract:
... Multi-microscopy techniques and Fourier transform infrared (FT-IR) spectroscopy were used in this study to investigate the intrinsic causes leading to fruit texture difference between two cultivars of oriental melon ‘HDB’ (crisp) and ‘HPM’ (mealy). On the histological aspect, orderly arranged regular-shaped cells with tissue natural fracture pattern showed cell rupture in ‘HDB’ versus loosely arra ...
DOI:
10.1016/j.foodchem.2022.134229

22. Novel supramolecular organo-oil gelators for fast and effective oil trapping: Mechanism and applications

Author:
Yajvinder Saharan; Joginder Singh; Rohit Goyat; Ahmad Umar; Sheikh Akbar; Ahmed A. Ibrahim; Sotirios Baskoutas
Source:
Journal of hazardous materials 2023 v.442 pp. 129977
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; adsorption; electron microscopy; gasoline; gelation; gels; oils; polluted soils; solvents; sorption isotherms
Abstract:
... In this paper, for the sorption of oil from oil polluted soil/water systems, nine new supramolecular organo-oil gelators were synthesized using three distinct diisocyanates and alcohols. The manufactured gelators were characterized using various techniques. The Fourier transform infrared (FTIR) and mass spectra confirmed the successful formation of the oil gelators. The synthesis of the proposed g ...
DOI:
10.1016/j.jhazmat.2022.129977

23. Orange G degradation by heterogeneous peroxymonosulfate activation based on magnetic MnFe2O4/α-MnO2 hybrid

Author:
Le Thi Thao; To Van Nguyen; Van Quy Nguyen; Ngoc Man Phan; Ki Jae Kim; Nguyen Nhat Huy; Nguyen Trung Dung
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 379-396
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; azo dyes; catalysts; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; hot water treatment; hybrids; magnetism; mass spectrometry; pH; pollution; reaction mechanisms; temperature; thermogravimetry; wastewater; China
Abstract:
... Wastewater containing an azo dye Orange G (OG) causes massive environmental pollution, thus it is critical to develop a highly effective, environmental-friendly, and reusable catalyst in peroxymonosulfate (PMS) activation for OG degradation. In this work, we successfully applied a magnetic MnFe₂O₄/α-MnO₂ hybrid fabricated by a simple hydrothermal method for OG removal in water. The characteristics ...
DOI:
10.1016/j.jes.2021.10.008

24. Physicochemical and functional properties of cross linked and high pressure homogenized sugar beet pectin: A comparative study

Author:
Sima Saeidy; Pegah Omidi; Ali Nasirpour; Javad Keramat
Source:
Food hydrocolloids 2023 v.134 pp. 108041
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; ammonium persulfate; comparative study; crosslinking; emulsions; esterification; ferulic acid; homogenization; hydrocolloids; oils; pH; pectins; sugar beet; thermal stability; viscosity
Abstract:
... Chemical cross-linking and high pressure homogenization are two methods to improve techno-functional properties of pectin. In this study, the effect of high pressure homogenization (HPH) variables including pressure (200, 600 and 1000 bar), numbers of passes through homogenization valve (1, 3 and 5 times) and pH (3.1, 3.6 and 4.1) on viscosity, water holding capacity (WHC), oil holding capacity (O ...
DOI:
10.1016/j.foodhyd.2022.108041

25. Porphyra haitanensis polysaccharide (PH) attenuates cell hyperplasia via remodeling the cross-talk between Hippo/YAP and mTOR pathways

Author:
Chong Wang; Wanglei Lin; Zhihua Sun; Yiming Sun; Yanbo Wang; Linglin Fu
Source:
Food science and human wellness 2023 v.12 no.2 pp. 424-430
ISSN:
2213-4530
Subject:
Fourier transform infrared spectroscopy; Porphyra; cell proliferation; epithelial cells; food science; humans; hyperplasia; intestines; models; polysaccharides; rapamycin
Abstract:
... Porphyra polysaccharide is a special kind of nutrient showing multiple physiological functions including regulating cell proliferation, but the detailed mechanisms are not fully revealed, impairing its further development and applications. This work was to purify and characterize the Porphyra haitanensis polysaccharide (PH), investigate its physiological function, and demonstrate the underlying me ...
DOI:
10.1016/j.fshw.2022.07.044

26. Prediction of wheat flours composition using fourier transform infrared spectrometry (FT-IR)

Author:
Camelia Maria Golea; Georgiana Gabriela Codină; Mircea Oroian
Source:
Food control 2023 v.143 pp. 109318
ISSN:
0956-7135
Subject:
Fourier transform infrared spectroscopy; Triticum aestivum subsp. spelta; Triticum monococcum subsp. monococcum; acidity; food safety; gluten; models; nondestructive methods; pH; prediction; principal component analysis; protein content; starch; water content; wheat; wheat flour
Abstract:
... Physicochemical characteristics of seventy wheat flours of different species namely Einkorn (Triticum monococcum), Spelt (Triticum spelta) and common wheat (Triticum aestivum) were analyzed using different standard methods. The wheat grains were analyzed for moisture, ash, protein, wet gluten, sedimentation index, pH, acidity, fat, starch, falling number, damage starch and Glutograph parameters st ...
DOI:
10.1016/j.foodcont.2022.109318

27. Preparation, properties and interaction of curcumin loaded zein/HP-β-CD nanoparticles based on electrostatic interactions by antisolvent co-precipitation

Author:
Zhiheng Zhang; Xiaojing Li; Shangyuan Sang; David Julian McClements; Long Chen; Jie Long; Aiquan Jiao; Zhengyu Jin; Chao Qiu
Source:
Food chemistry 2023 v.403 pp. 134344
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; antioxidant activity; coprecipitation; curcumin; dietary supplements; electrostatic interactions; encapsulation; fluorescence emission spectroscopy; food chemistry; hydrogen; hydrophobicity; nanoparticles; photostability; water solubility; zeta potential
Abstract:
... In this study, zein/hydroxypropyl-beta-cyclodextrin nanoparticles (ZHNPs) were synthesized using a combination of antisolvent co-precipitation and electrostatic attraction. The structural and physicochemical properties of the NPs were characterized using a variety of analytical methods. NPs with small mean diameters (143.6 nm) and strong cationic surface potentials (+62.1 mV) could be obtained at ...
DOI:
10.1016/j.foodchem.2022.134344

28. Promotional effect of cobalt doping on catalytic performance of cryptomelane-type manganese oxide in toluene oxidation

Author:
Ning Dong; Mengyue Chen; Qing Ye; Dan Zhang; Hongxing Dai
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 263-274
ISSN:
1001-0742
Subject:
Ammonia (Rotaliidae); Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; carbon dioxide; carbonates; catalytic activity; cobalt; electron transfer; hydrogen; manganese; manganese monoxide; oxidation; oxygen; sulfates; synergism; toluene; China
Abstract:
... The cryptomelane-type manganese oxide (OMS-2)-supported Co (xCo/OMS-2; x = 5, 10, and 15 wt.%) catalysts were prepared via a pre-incorporation route. The as-prepared materials were used as catalysts for catalytic oxidation of toluene (2000 ppmV). Physical and chemical properties of the catalysts were measured using the X-ray diffraction (XRD), Fourier transform infrared spectroscopic (FT-IR), scan ...
DOI:
10.1016/j.jes.2022.03.024

29. Simultaneous determination of Pb2+ and Hg2+ at food specimens by a Melamine-based covalent organic framework modified glassy carbon electrode

Author:
Mohammad Reza Jalali Sarvestani; Tayyebeh Madrakian; Abbas Afkhami
Source:
Food chemistry 2023 v.402 pp. 134246
ISSN:
0308-8146
Subject:
Fourier transform infrared spectroscopy; density functional theory; detection limit; dielectric spectroscopy; electric potential difference; electrolytes; electron microscopy; energy-dispersive X-ray analysis; food chemistry; glassy carbon electrode; pH; schiff bases; sensors (equipment); voltammetry
Abstract:
... Heavy metals determination is of great importance. In this respect, a recently synthesized melamine-based covalent organic framework (Schiff base network₁ (SNW₁)) was used in this research as a novel modifier to alter a glassy carbon electrode for the simultaneous anodic stripping square wave voltammetric measurement of Pb²⁺ and Hg²⁺ ions. At first, the complexation of SNW₁ with Pb²⁺ and Hg²⁺ ions ...
DOI:
10.1016/j.foodchem.2022.134246

30. Theoretical and experimental investigations into the pyrolysis mechanisms of silicon-modified phenolic resin under high temperatures

Author:
YouPei Du; ZhenHua Luo; Yang Yang; Yiming Yang; WenJie Yuan; Hao Li; YiQiang Hong; Zhen Dai; PingXia Zhang; Tong Zhao
Source:
Carbon 2023 v.201 pp. 504-519
ISSN:
0008-6223
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; algorithms; aromatization; carbon; carbonization; crosslinking; microstructure; molecular dynamics; phenolic resins; pyrolysis; separation; simulation models
Abstract:
... ReaxFF molecular dynamics (ReaxFF-MD) simulations and X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman, Fourier transform infrared spectroscopy (FT-IR), ²⁹Si NMR were used to investigate the temperature-dependent pyrolysis gas release behavior, dynamic evolution of microstructure, and fundamental carbonization mechanism of silicon-modified phenolic resin (SiPR). An improved a ...
DOI:
10.1016/j.carbon.2022.07.061

31. Turning an invasive alien species into a valuable biomass: Anaerobic digestion of Rugulopteryx okamurae after thermal and new developed low-cost mechanical pretreatments

Author:
David De la Lama-Calvente; María José Fernández-Rodríguez; Menta Ballesteros; Ángel Rabdel Ruiz-Salvador; Francisco Raposo; José Carlos García-Gómez; Rafael Borja
Source:
Science of the total environment 2023 v.856 pp. 158914
ISSN:
0048-9697
Subject:
Fourier transform infrared spectroscopy; Rugulopteryx okamurae; X-ray diffraction; anaerobic digestion; biomass; circular economy; crystal structure; electron microscopy; environment; environmental impact; invasive species; macroalgae; methane; methane production; microstructure; renewable energy sources; zeolites; Mediterranean Sea
Abstract:
... The invasive alien seaweed Rugulopteryx okamurae (R.o.) has spread quickly through the Mediterranean Sea causing an unprecedented ecological impact. A solution integrated into a circular economy model is needed in order to curb the negative effects of its presence. Anaerobic digestion (AD) is proposed as a feasible process able to transform biomass into renewable energy. Nevertheless, in order to ...
DOI:
10.1016/j.scitotenv.2022.158914

32. Variations in surface functional groups, carbon chemical state and graphitization degree during thermal deactivation of diesel soot particles

Author:
Ye Liu; Sijin Wu; Chenyang Fan; Xin Wang; Fangjie Liu; Haibo Chen
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 678-687
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray photoelectron spectroscopy; carbon; chemical species; heat treatment; soot; spectrometers; temperature; thermodynamics; thermogravimetry; China
Abstract:
... The thermal deactivation of diesel soot particles exerts a significant influence on the control strategy for the regeneration of diesel particulate filters (DPFs). This work focused on the changes in the surface functional groups, carbon chemical state, and graphitization degree during thermal treatment in an inert gas environment at intermediate temperatures of 600°C, 800°C, and 1000°C and explor ...
DOI:
10.1016/j.jes.2022.01.007

33. The characteristics of polysaccharide from Gracilaria chouae and its application in food packaging with carboxymethyl cellulose and lysozyme

Author:
Shiyuan Chang; Xinyuan Zou; Biyang Zhu; Lijun You; Zhengang Zhao; Kseniya Hileuskaya
Source:
Food hydrocolloids 2023 v.135 pp. 108109
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; Gracilaria; bass; calorimeters; carboxymethylcellulose; color; electron microscopy; galactose; galacturonic acid; glucose; hydrocolloids; lysozyme; macroalgae; microstructure; modulus of elasticity; molecular weight; shelf life; tensile strength; total volatile basic nitrogen; toxicity; ultraviolet radiation; viscosity
Abstract:
... In this study, Gracilaria chouae polysaccharide (GCP) was prepared and mixed with carboxymethylcellulose (CMC) and lysozyme to develop a novel active packaging film (named GCLF). The GCP was mainly composed of galactose (55.17%), glucose (21.87%) and galacturonic acid (6.3%), with a high molecular weight (>700 kDa). It also showed pseudoplastic behavior and high apparent viscosity at 3%, presentin ...
DOI:
10.1016/j.foodhyd.2022.108109

34. The effect of three pectin fractions variation on the browning of different dried apple products

Author:
Qingting Yu; Xuan Li; Jiaxing Hu; Wenyue Wang; Jinfeng Bi
Source:
Food hydrocolloids 2023 v.134 pp. 108052
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; air; apples; cell walls; color; dried fruit; esterification; freeze drying; galactose; heat treatment; hydrocolloids; molecular weight; pectins; small-angle X-ray scattering; sodium; texture; water solubility
Abstract:
... Pectin is an important active polysaccharide in the matrix of dried fruit slices. Its components and structural character not only affect the texture but also impact the color of the dried fruit products. Present work studied the variation of pectin fractions of water-soluble (WSP), trans-cyclohexane-1,2-diaminetetraacetic acid-soluble (CSP), and sodium carbonate-soluble (NSP) from apple slices dr ...
DOI:
10.1016/j.foodhyd.2022.108052

35. κ-Carrageenan/konjac glucomannan composite hydrogel filled with rhamnolipid-stabilized nanostructured lipid carrier: Improvement of structure and properties

Author:
Xin Shu; Yajie Wei; Xiaoli Luo; Jinfang Liu; Like Mao; Fang Yuan; Yanxiang Gao
Source:
Food hydrocolloids 2023 v.134 pp. 108088
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; brittleness; cohesion; crystal structure; electron microscopy; electrostatic interactions; hardness; homogenization; hydrocolloids; hydrogels; hydrogen; hydrogen bonding; lipids; magnetism; models; synergism; texture; thermal stability
Abstract:
... This study investigated the feasibility of applying rhamnolipid-stabilized nanostructured lipid carrier (RNLC) as a novel type of particulate filler and its impact on the structure and properties of κ-carrageenan/konjac glucomannan (KC-KGM) composite hydrogel. RNLC particles (204.87 ± 3.50 nm) were fabricated by high-pressure homogenization method. X-ray diffraction and differential scanning calor ...
DOI:
10.1016/j.foodhyd.2022.108088

36. 2D graphene/FeOCl heterojunctions with enhanced tribology performance as a lubricant additive for liquid paraffin

Author:
Mengxin Xie; Bingli Pan; Ning Li; Shuang Zhao; Junjiang Yan; Shihao Guo; Zhe Chen; Honggang Wang
Source:
RSC advances 2022 v.12 no.5 pp. 2759-2769
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; chemical composition; density functional theory; direct contact; energy; energy-dispersive X-ray analysis; friction; graphene; liquids; lubricants; lubrication
Abstract:
... The purpose of this study is to prepare graphene/FeOCl (G/FeOCl) heterojunctions via a microwave-pyrolysis approach and probe into the synergistic lubrication of G with FeOCl in liquid paraffin (LP). The morphology and chemical composition of specimens were analysed by utilizing scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform ...
DOI:
10.1039/d1ra06650a

37. 3D Biofabrication of a Cardiac Tissue Construct for Sustained Longevity and Function

Author:
Matthew Alonzo; Raven El Khoury; Naveen Nagiah; Vikram Thakur; Munmun Chattopadhyay; Binata Joddar
Source:
ACS applied materials & interfaces 2022 v.14 no.19 pp. 21800-21813
ISSN:
1944-8252
Subject:
Fourier transform infrared spectroscopy; atrophy; biofabrication; biomarkers; cardiomyocytes; cardiovascular diseases; cell culture; cytotoxicity; drugs; electron microscopy; fibroblasts; flow cytometry; humans; hydrogels; longevity; microgravity; models; modulus of elasticity; organoids; physiology; reflectance; three-dimensional printing; viability
Abstract:
... In this study, we developed three-dimensional (3D) printed annular ring-like scaffolds of hydrogel (gelatin–alginate) constructs encapsulated with a mixture of human cardiac AC16 cardiomyocytes (CMs), fibroblasts (CFs), and microvascular endothelial cells (ECs) as cardiac organoid models in preparation for investigating the role of microgravity in cardiovascular disease initiation and development. ...
DOI:
10.1021/acsami.1c23883

38. 3D carbon aerogel from waste corrugated cardboard as a photothermal reservoir for solar steam generation

Author:
Hanxin Huo; Yuhui Ma; Yu Cheng; Junrui Cao
Source:
Environmental science and pollution research 2022 v.29 no.16 pp. 23936-23948
ISSN:
0944-1344
Subject:
Fourier transform infrared spectroscopy; aerogels; carbon; carbon dioxide; carbonization; cardboard; cold; energy; evaporation rate; furfural; heat; hydrophilicity; irradiation; nanopores; pollution; polymerization; pyrolysis; research; solvents; steam; surface area; surface temperature; thermogravimetry; wettability
Abstract:
... Three-dimensional carbon aerogel (CA800) was prepared from waste corrugated cardboard (WCC) by the procedure of slurrying, solvent replacement, drying, and carbonization in turn, and the product was explored as an all-in-one evaporator for solar steam generation without bulk water. Carbonization of the precursor was investigated using thermogravimetric analyzer coupled with Fourier transform infra ...
DOI:
10.1007/s11356-021-17659-0

39. A 3D-Printed Polycaprolactone/Marine Collagen Scaffold Reinforced with Carbonated Hydroxyapatite from Fish Bones for Bone Regeneration

Author:
Se-Chang Kim; Seong-Yeong Heo; Gun-Woo Oh; Myunggi Yi; Won-Kyo Jung
Source:
Marine drugs 2022 v.20 no.6 pp. -
ISSN:
1660-3397
Subject:
Fourier transform infrared spectroscopy; Paralichthys olivaceus; X-ray diffraction; bone formation; bones; collagen; extracellular matrix; fish; hydrophilicity; hydroxyapatite; mineralization; polyacrylamide gel electrophoresis; tissue repair
Abstract:
... In bone tissue regeneration, extracellular matrix (ECM) and bioceramics are important factors, because of their osteogenic potential and cell–matrix interactions. Surface modifications with hydrophilic material including proteins show significant potential in tissue engineering applications, because scaffolds are generally fabricated using synthetic polymers and bioceramics. In the present study, ...
DOI:
10.3390/md20060344

40. ATR-FTIR Spectroscopy Combined with Chemometric Methods for the Classification of Polyethylene Residues Containing Different Contaminants

Author:
Daniel José da Silva; Hélio Wiebeck
Source:
Journal of polymers and the environment 2022 v.30 no.7 pp. 3031-3044
ISSN:
1566-2543
Subject:
Fourier transform infrared spectroscopy; calcium carbonate; chemometrics; environment; microplastics; polyethylene; polypropylenes; principal component analysis; silica; wastes; Brazil
Abstract:
... Low density polyethylene (LDPE) and high density polyethylene (HDPE) are the principal plastics present in solid plastic waste and are found out as the main components of microplastics in marine and terrestrial environments. Currently, efforts have been made to develop new and effective methods to ensure the identification and separation of plastics in waste, ensuring the necessary purity to obtai ...
DOI:
10.1007/s10924-022-02396-3

41. ATR-FTIR to distinguish Holocene fumier facies. A perspective from bone diagenesis at El Mirador cave (Sierra de Atapuerca, Spain)

Author:
Héctor Del Valle; Isabel Cáceres; Carlos Tornero; Aitor Burguet-Coca; Abel Moclán; Josep Maria Vergès
Source:
Journal of archaeological science 2022 v.141 pp. 105582
ISSN:
0305-4403
Subject:
Fourier transform infrared spectroscopy; archaeology; crystal structure; diagenesis; feces; livestock; proteomics; Mediterranean region; Spain
Abstract:
... Long and complex sequences of intentional organic rich sediments accumulation known as fumiers can often be found in many caves and rock shelters used for herding activities since the Neolithic to current times in the Mediterranean basin. These are mainly composed of burnt animal dung and vegetal remains and are commonly interpreted as the result of livestock domestic occupations and stabling acti ...
DOI:
10.1016/j.jas.2022.105582

42. Abundant defects of zirconium-organic xerogels: High anhydrous proton conductivities over a wide temperature range and formic acid impedance sensing

Author:
Jiyu Tang; Feng Zhang; Xiaoqiang Liang; Guoliang Dai; Fengyu Qu
Source:
Journal of colloid and interface science 2022 v.607 pp. 181-191
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; altitude; cold; desorption; formic acid; ion exchange capacity; porosity; sorption; temperature; thermogravimetry; xerogels
Abstract:
... There exists a challenge to develop solid-state proton conductors with high conductivity not only at high working temperatures (>353 K) but at start-up temperature and even at subzero temperature (<273 K) in cold climates or high-altitude drones. Here we present a series of zirconium-organic xerogels (Zr/Fum-xerogels) with porosity and defectivity, supported by N₂ sorption, thermogravimetric analy ...
DOI:
10.1016/j.jcis.2021.08.159

43. Accelerated degradation of low-density polyethylene in air and in sea water

Author:
Anthony L. Andrady; Kara Lavender Law; Jessica Donohue; Bimali Koongolla
Source:
Science of the total environment 2022 v.811 pp. 151368
ISSN:
0048-9697
Subject:
Fourier transform infrared spectroscopy; air; dissolved oxygen; environment; microplastics; oxidation; polyethylene; seawater; temperature; ultraviolet radiation
Abstract:
... Accelerated weathering of LDPE laminates, with samples exposed to ultraviolet radiation (UVR) in air and while floating in seawater at the same temperature, was investigated in this study. The depth profiles of the concentrations of oxidation products in the two sets of samples was assessed by FTIR (Fourier Transform Infrared Spectroscopy) and suggest the oxidation on weathering to be diffusion-co ...
DOI:
10.1016/j.scitotenv.2021.151368

44. Acceleration of biotic decolorization and partial mineralization of methyl orange by a photo-assisted n-type semiconductor

Author:
Zhong-yue Chang; Zi-yang Wang; Rui Zhang; Lei Yu
Source:
Chemosphere 2022 v.291 pp. 132846
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; biodegradation; decolorization; density functional theory; electron transfer; liquid chromatography; methyl orange; mineralization; photocatalysis; semiconductors; toxicity; voltammetry
Abstract:
... In this study, a n-type semiconductor perylene diimide (PDI) was coupled with biodegradation to accelerate the biotic decolorization and mineralization of methyl orange (MO) under light condition. The decolorization rates (k₁) of MO in pure and mixed cultures with PDI were promoted by 1.35 and 1.79 folds, respectively, comparing to the cultures without PDI. The total mineralization efficiency of 4 ...
DOI:
10.1016/j.chemosphere.2021.132846

45. Accumulation of chiral pharmaceuticals (ofloxacin or levofloxacin) onto polyethylene microplastics from aqueous solutions

Author:
Yanan Chen; Yunkun Qian; Yijun Shi; Xinyi Wang; Xiao Tan; Dong An
Source:
Science of the total environment 2022 v.823 pp. 153765
ISSN:
0048-9697
Subject:
Fourier transform infrared spectroscopy; adsorption; enantiomers; enantioselectivity; environmental fate; exposure duration; levofloxacin; microplastics; optical isomerism; optical properties; organic matter; pH; polyethylene; salinity; ultraviolet radiation
Abstract:
... Drug chirality is attracting increasing attention because the enantiomers of the same chiral pharmaceutical usually exhibit different biological activities, metabolic pathways, and toxicities. The ubiquitous presence of microplastics (MPs) can enrich organic pollutants commonly found in the environment. However, knowledge about the enrichment of pharmaceutical enantiomers to MPs is relatively limi ...
DOI:
10.1016/j.scitotenv.2022.153765

46. Acetaminophen removal by calcium alginate/activated hydrochar composite beads: Batch and fixed-bed studies

Author:
Thiago Peixoto de Araújo; Heloise Beatriz Quesada; Débora Federici dos Santos; Beatriz Carvalho da Silva Fonseca; Jéssica Zanette Barbieri; Rosângela Bergamasco; Maria Angélica Simões Dornellas de Barros
Source:
International journal of biological macromolecules 2022 v.203 pp. 553-562
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; acetaminophen; adsorbents; adsorption; calcium alginate; endothermy; hydrochars; mass transfer; spent grains; surface area; surface water; wastewater
Abstract:
... The occurrence of acetaminophen in surface water has been reported worldwide, indicating the need of alternative wastewater treatments. Activated hydrochar (AHC) is efficient for pharmaceuticals removal. Powdered AHC presents challenges that hamper its expansion. However, these issues can be overcome by adding polymers, such as alginate, in composite beads. Therefore, the present study aimed to de ...
DOI:
10.1016/j.ijbiomac.2022.01.177

47. Acid Etching-Induced In Situ Growth of λ-MnO₂ over CoMn Spinel for Low-Temperature Volatile Organic Compound Oxidation

Author:
Cangpeng Shan; Yan Zhang; Qian Zhao; Kaixuan Fu; Yanfei Zheng; Rui Han; Caixia Liu; Na Ji; Weichao Wang; Qingling Liu
Source:
Environmental science & technology 2022 v.56 no.14 pp. 10381-10390
ISSN:
1520-5851
Subject:
Fourier transform infrared spectroscopy; acetates; acetone; carbon dioxide; catalytic activity; electron transfer; environmental science; formates; oxidation; oxygen; reaction kinetics; technology; volatile organic compounds
Abstract:
... Surface lattice oxygen is crucial to the degradation of volatile organic compounds (VOCs) over transition metal oxides according to the Mars–van Krevelen mechanism. Herein, λ-MnO₂ in situ grown on the surface of CoMn spinel was prepared by acid etching of corresponding spinel catalysts (CoMn-Hx-Ty) for VOC oxidation. Experimental and relevant theoretical exploration revealed that acid etching on t ...
DOI:
10.1021/acs.est.2c02483

48. Acid adaptive response of Alicyclobacillus acidoterrestris: A strategy to survive lethal heat and acid stresses

Author:
Ning Zhao; Junnan Xu; Lingxia Jiao; Miaomiao Liu; Tong Zhang; Jun Li; Xinyuan Wei; Mingtao Fan
Source:
Food research international 2022 v.157 pp. 111364
ISSN:
0963-9969
Subject:
Alicyclobacillus acidoterrestris; DNA; DNA repair; Fourier transform infrared spectroscopy; acid tolerance; biosynthesis; cell membranes; decarboxylation; fatty acids; food research; fruit juices; gene expression; gene expression regulation; glutamic acid; heat; homeostasis; homologous recombination; juice industry; pH; pasteurization; phospholipids; roughness; shrinkage; spoilage; sporulation; transcriptomics; urease; zwitterions
Abstract:
... Alicyclobacillus acidoterrestris causes the spoilage of pasteurized acidic fruit juice, seriouslydecreasing quality and posing a significant safety concern. We previously discovered that acid adaptation could induce stress adaptive responses of A. acidoterrestris, however, the underlying mechanisms of this induction have not been fully elucidated. In this work, the effects of acid adaptation (pH = ...
DOI:
10.1016/j.foodres.2022.111364

49. Acid-sensitive charge-reversal co-assembled polyurethane nanomicelles as drug delivery carriers

Author:
Jingyi Liu; Zhoutong Dai; Yu Zhou; Wangwang Tao; Hongxiang Chen; Zuyi Zhao; Xinghua Liao
Source:
Colloids and surfaces 2022 v.209 pp. 112203
ISSN:
0927-7765
Subject:
Fourier transform infrared spectroscopy; antineoplastic activity; blood; cytotoxicity; drugs; electrostatic interactions; gel chromatography; micelles; neoplasms; nuclear magnetic resonance spectroscopy; pH; polyurethanes
Abstract:
... In order to obtain drug delivery carriers with good stability in blood and high cellular uptake efficiency, carboxyl groups and tertiary amine groups were respectively introduced into polyurethane to synthesize two kinds of amphiphilic polyurethanes with opposite charges (PUC and PUN). Their structures were characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance ...
DOI:
10.1016/j.colsurfb.2021.112203

50. Acidic Ionic Liquids as Metal-Free and Recyclable Catalysts for Direct Reduction of Aromatic Allylic Alcohol in Dimethyl Carbonate via Hydrogen Transfer

Author:
Qiaowen Liu; Feng Han; Hongfeng Zhuang; Zenghong Song; Jian Zhang; Tong Zhang; Ning Wang; Chengxia Miao
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.20 pp. 6784-6793
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; alcohols; carbonates; cleavage (chemistry); environmental protection; green chemistry; hydrogen; isotopes
Abstract:
... Direct reduction of alcohols, to avoid tedious reaction steps, has drawn broad attention. However, the transformation was mainly catalyzed by transition metals or Lewis acids. Developing a metal-free and recyclable catalytic system is still a challenging task from the viewpoint of green chemistry. Herein, pyrrolidine-based ionic liquids as metal-free and recyclable catalysts for direct reduction o ...
DOI:
10.1021/acssuschemeng.2c01162