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You searched for: Publication year rev 7984-2016 Remove constraint Publication year rev: 7984-2016 Subject term alkali treatment Remove constraint Subject term: alkali treatment
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1. A Novel Combined Pretreatment Method for Rice Straw Using Optimized EMIM[Ac] and Mild NaOH

Author:
S. Morteza Raeisi; Meisam Tabatabaei; Bita Ayati; Akram Ghafari; Sohrab Haghighi Mood
Source:
Waste and biomass valorization 2016 v.7 no.1 pp. 97-107
ISSN:
1877-2641
Subject:
acetates; alkali treatment; cellulose; ethanol production; hemicellulose; lignin; pretreatment; rice straw; sodium hydroxide; sugars
Abstract:
... Combined pretreatment methods for improving sugar yield as well as the economic aspects of lignoethanol production processes have gained a great deal of interest. However, most investigations involving such methods have been conducted under optimum conditions. Such fully-optimized combinations although improve enzymatic digestion, they could also degrade cellulose structure resulting in reduced su ...
DOI:
10.1007/s12649-015-9437-5

2. A biorefinery concept using the green macroalgae Chaetomorpha linum for the coproduction of bioethanol and biogas

Author:
Nesrine Ben Yahmed; Mohamed Amine Jmel; Monia Ben Alaya; Hassib Bouallagui; M. Nejib Marzouki; Issam Smaali
Source:
Energy conversion and management 2016 v.119 pp. 257-265
ISSN:
0196-8904
Subject:
anaerobic digesters; macroalgae; sodium hydroxide; biogas; Chaetomorpha; scanning electron microscopy; feedstocks; reducing sugars; biorefining; alkali treatment; mycelium; saccharification; effluents; thallus; hydrolysis; Aspergillus awamori; biomass; ethanol; alcoholic fermentation; bioethanol; Saccharomyces cerevisiae; enzymatic hydrolysis; pH; coproducts; fungi
Abstract:
... An innovative integrated biorefinery approach using the green macroalgae Chaetomorpha linum was investigated in the present study for the co-production of bioethanol and biogas. Among three pretreatments of C. linum biomass, consisting of acidic, neutral and alkali ones, 3% NaOH pretreatment gave the best result in terms of thallus disintegration, biomass recovery and enzymatic digestibility as de ...
DOI:
10.1016/j.enconman.2016.04.046

3. A fast alkaline treatment for cadmium determination in meat samples

Author:
Taise S.C.P. Aranha; Andrea Oliveira; Helena M. Queiroz; Solange Cadore
Source:
Food control 2016 v.59 pp. 447-453
ISSN:
0956-7135
Subject:
alkali treatment; ambient temperature; atomic absorption spectrometry; cadmium; food availability; food safety; livestock; meat; organ meats; slurries; tetramethylammonium compounds
Abstract:
... This study proposes a simple and fast sample treatment to determine cadmium levels in meat samples (edible offal) of several animal species by graphite furnace atomic absorption spectrometry, GF AAS, as an alternative to the calcination method, currently employed by Official Food Control department of the Brazilian Ministry of Agriculture, Livestock, and Food Supply (MAPA). In the proposed method ...
DOI:
10.1016/j.foodcont.2015.06.015

4. A new approach of structural and chemical modification on graphene electrodes for high-performance supercapacitors

Author:
Yun-Hwa Hwang; Sun Min Lee; Yong Jae Kim; Yung Ho Kahng; Kwanghee Lee
Source:
Carbon 2016 v.100 pp. 7-15
ISSN:
0008-6223
Subject:
alkali treatment; ambient temperature; capacitance; commercialization; electrodes; energy; energy density; graphene; graphene oxide; porous media
Abstract:
... The low energy density of graphene-based supercapacitors has been a critical bottleneck for their commercialization. In particular, the poor capacitance due to the lack of electrically porous channels and insufficient Faradaic reactions in reduced graphene oxide (RGO) electrodes has been a major limiting factor for their successful application. Herein, we demonstrate an innovative process for modi ...
DOI:
10.1016/j.carbon.2015.12.079

5. A new process to improve short-chain fatty acids and bio-methane generation from waste activated sludge

Author:
Bin Dong; Peng Gao; Dong Zhang; Yinguang Chen; Lingling Dai; Xiaohu Dai
Source:
Journal of environmental sciences (China) 2016 v.43 pp. 159-168
ISSN:
1001-0742
Subject:
acetic acid; acidification; activated sludge; alkali treatment; anaerobic digestion; biogas; chemical oxygen demand; energy; fermentation; hydrolysis; intermediate product; methane; methane production; pH; short chain fatty acids; temperature
Abstract:
... As an important intermediate product, short-chain fatty acids (SCFAs) can be generated after hydrolysis and acidification from waste activated sludge, and then can be transformed to methane during anaerobic digestion process. In order to obtain more SCFA and methane, most studies in literatures were centered on enhancing the hydrolysis of sludge anaerobic digestion which was proved as un-efficient ...
DOI:
10.1016/j.jes.2015.10.004

6. A novel stepwise pretreatment on corn stalk by alkali deacetylation and liquid hot water for enhancing enzymatic hydrolysis and energy utilization efficiency

Author:
Wei Jiang; Jian Xu
Source:
Bioresource technology 2016 v.209 pp. 115-124
ISSN:
0960-8524
Subject:
alkali treatment; corn stover; energy; enzymatic hydrolysis; glucose; hemicellulose
Abstract:
... A novel stepwise pretreatment on corn stalk (CS) by alkali deacetylation combined with liquid hot water (LHW) was investigated to enhance enzymatic hydrolysis. After deacetylated treatment, strength of alkali deacetylation of CS was from 1.79% to 91.34% which was subsequently pretreated by LHW with severity from 3.27 to 4.27. It was found that higher strength of alkali deacetylation could reduce b ...
DOI:
10.1016/j.biortech.2016.02.111

7. A precise study on effects that trigger alkaline hemicellulose extraction efficiency

Author:
Christian Hutterer; Gabriele Schild; Antje Potthast
Source:
Bioresource technology 2016 v.214 pp. 460-467
ISSN:
0960-8524
Subject:
Betula papyrifera; Eucalyptus globulus; Fagus sylvatica; alkali treatment; alkalinity; enzymatic treatment; hardwood; hemicellulose; ingredients; molecular weight; pharmaceutical industry; temperature
Abstract:
... The conversion of paper-grade pulps into dissolving pulps requires efficient strategies and process steps to remove low-molecular noncellulosic macromolecules generally known as hemicelluloses. Current strategies include alkaline extractions and enzymatic treatments. This study focused on the evaluation of extraction efficiencies in alkaline extractions of three economically interesting hardwood s ...
DOI:
10.1016/j.biortech.2016.04.114

8. A review on alkaline pretreatment technology for bioconversion of lignocellulosic biomass

Author:
Jun Seok Kim; Y.Y. Lee; Tae Hyun Kim
Source:
Bioresource technology 2016 v.199 pp. 42-48
ISSN:
0960-8524
Subject:
alkali treatment; biomass; biotransformation; enzymatic hydrolysis; lignin; lignocellulose; porosity; saccharification; surface area
Abstract:
... The native form of lignocellulosic biomass is resistant to enzymatic breakdown. A well-designed pretreatment that can promote enzymatic hydrolysis of biomass with reasonable processing cost is therefore necessary. To this end, a number of different types of pretreatment technologies have been developed with a common goal of making biomass more susceptible to enzymatic saccharification. Among those ...
DOI:
10.1016/j.biortech.2015.08.085

9. Acidification treatment of lignin from sugarcane bagasse results in fractions of reduced polydispersity and high free-radical scavenging capacity

Author:
Lívia Beatriz Brenelli; Fernanda Mandelli; Adriana Zerlotti Mercadante; George Jackson de Moraes Rocha; Silvana Aparecida Rocco; Aldo Felix Craievich; Adilson Roberto Gonçalves; Danilo da Cruz Centeno; Mario de Oliveira Neto; Fabio Marcio Squina
Source:
Industrial crops and products 2016 v.83 pp. 94-103
ISSN:
0926-6690
Subject:
acidification; molecular weight; cell walls; hydrogen peroxide; nitrogen; streams; sugarcane bagasse; pH; antioxidant activity; mass spectrometry; alkali treatment; lignin; oxygen; nanoparticles
Abstract:
... Lignin constitutes up to one-third of the material found in plant cell walls and is considered the second most abundant natural polymer in the world. Despite unique characteristics of lignin, it is mostly used for low-value commercial applications. In this study, lignin obtained after alkaline treatment of steam-exploded sugarcane bagasse was submitted to an acidification process. The soluble frac ...
DOI:
10.1016/j.indcrop.2015.12.013

10. Alkali treatment of fungal pretreated wheat straw for bioethanol production

Author:
María García-Torreiro; Miguel Álvarez Pallín; María López-Abelairas; Thelmo A. Lu-Chau; Juan M. Lema
Source:
Bioethanol 2016 v.2 no.1 pp. -
ISSN:
2299-6788
Subject:
Irpex lacteus; alkali treatment; bioethanol; biomass; biotransformation; enzymatic hydrolysis; ethanol; ethanol production; lignocellulose; operating costs; recycling; sodium hydroxide; sugars; wheat straw; white-rot fungi
Abstract:
... Bioconversion of lignocellulosic materials into ethanol requires an intermediate pretreatment step for conditioning biomass. Sugar yields from wheat straw were previously improved by the addition of a mild alkali pretreatment step before bioconversion by the white-rot fungus Irpex lacteus. In this work, an alternative alkaline treatment, which significantly reduces water consumption, was implement ...
DOI:
10.1515/bioeth-2015-0004

11. Alkali-solubilized organic matter from sludge and its degradability in the anaerobic process

Author:
Dongzhe Li; Yan Zhou; Youming Tan; Santosh Pathak; Maszenan bin Abdul Majid; Wun Jern Ng
Source:
Bioresource technology 2016 v.200 pp. 579-586
ISSN:
0960-8524
Subject:
alkali treatment; dissolved organic matter; molecular weight; sludge
Abstract:
... This study investigates alkali-solubilized dissolved organic matter (DOM) and its fate in the anaerobic treatment process. DOM was fractionated into high molecular weight (HMW) protein-like substances (PL), HMW saccharide-like substances (SL), low molecular weight (LMW) PL, LMW SL, and humic acid-like substances (HAL). The results indicate alkali-solubilized DOM is primarily composed of LMW PL, HM ...
DOI:
10.1016/j.biortech.2015.10.083

12. Alkaline Amendment for the Enhancement of Compost Degradation for Polylactic Acid Biopolymer Products

Author:
Troy A. Hottle; Marisol Luna Agüero; Melissa M. Bilec; Amy E. Landis
Source:
Compost Science & Utilization 2016 v.24 no.3 pp. 159-173
ISSN:
2326-2397
Subject:
alkali treatment; biopolymers; bioreactors; composting; composts; microscopy; organic wastes; plastics; polylactic acid
Abstract:
... This research evaluates the addition of alkaline amendments to enhance the degradation of polylactic acid polymers (PLA) in compost conditions. The use of compostable biopolymers is increasing in part because they are advertised as compostable. However, PLA degrades slowly compared to the organic wastes in compost and even when processed in commercial composting facilities may not fully break down ...
DOI:
10.1080/1065657X.2015.1102664

13. Alkaline pretreatment for practicable production of ethanol and xylooligosaccharides

Author:
Viviane Marcos Nascimento; Anny Manrich; Paulo Waldir Tardioli; Roberto de Campos Giordano; George Jackson de Moraes Rocha; Raquel de Lima Camargo Giordano
Source:
Bioethanol 2016 v.2 no.1 pp. -
ISSN:
2299-6788
Subject:
additives; alkali treatment; biocatalysts; bioethanol; biomass; biorefining; drugs; economics; electric power; endo-1,4-beta-xylanase; energy; ethanol; feeds; raw materials; sodium hydroxide; sugarcane bagasse; xylan; xylooligosaccharides; xylose
Abstract:
... The economics for production of secondgeneration (2G) ethanol from sugarcane bagasse in large scale, competing with the cogeneration of electric energy, is still not consolidated. In this scenario, the key for feasibility may be the biorefinery concept, a multiproduct industry using biomass fractions to produce energy, chemicals and by-products. Xylooligosaccharides (XOS) are oligomers of xylose o ...
DOI:
10.1515/bioeth-2016-0008

14. Alternative Antimicrobial Commercial Egg Washing Procedures

Author:
Lauren K. Hudson; Mark A. Harrison; Mark E. Berrang; Deana R. Jones
Source:
Journal of food protection 2016 v.79 no.7 pp. 1216-1220
ISSN:
0362-028X
Subject:
Salmonella Enteritidis; Salmonella Typhimurium; alkali treatment; ambient temperature; chlorine; cost effectiveness; detergents; eggs; emulsions; energy costs; heat; industry; pH; packaging; pathogens; potassium; shelf life; washing
Abstract:
... Commercial table eggs are washed prior to packaging. Standard wash procedures use an alkaline pH and warm water. If a cool water method could be developed that would still provide a microbiologically safe egg, the industry may save energy costs associated with water heating. Four wash procedures were evaluated for Salmonella reduction: pH 11 at 48.9°C (industry standard), pH 11 at ambient temperat ...
DOI:
10.4315/0362-028X.JFP-15-423

15. An alkali treating strategy for the colloidization of graphitic carbon nitride and its excellent photocatalytic performance

Author:
Fuxing Cheng; Jing Yan; Chenjuan Zhou; Binhe Chen; Peiran Li; Zhi Chen; Xiaoping Dong
Source:
Journal of colloid and interface science 2016 v.468 pp. 103-109
ISSN:
0021-9797
Subject:
alkali treatment; carbon nitride; colloids; electron microscopy; electrostatic interactions; graphene; hydrogen bonding; light scattering; melons; moieties; particle size; photocatalysis
Abstract:
... The colloid of graphitic carbon nitride (g-C₃N₄) was of great importance for practical application. Herein we introduced an alkali treatment route to efficiently colloidize g-C₃N₄ under mild conditions by destroying the hydrogen bonds between linearly polymeric melon chains and hydrolyzing partial CNHC bonds linked two tri-s-triazine units. The obtained colloidal suspension was extremely stable du ...
DOI:
10.1016/j.jcis.2016.01.044

16. Anaerobic digested sludge: a new supplementary nutrient source for ethanol production

Author:
R. Bashiri; M. Farhadian; M. A. Asadollahi; A. Jeihanipour
Source:
International journal of environmental science and technology 2016 v.13 no.3 pp. 763-772
ISSN:
1735-1472
Subject:
Saccharomyces cerevisiae; alkali treatment; anaerobic digesters; carbon; culture media; ethanol; ethanol fermentation; ethanol production; glucose; hydrolysates; nitrogen; nutrients; phosphates; sludge; sulfur; yeast extract; yeasts
Abstract:
... Effluent sludge from an anaerobic digester was used as a source of nitrogen, phosphate, sulfur, and other nutrients in the culture medium of ethanol production by the yeast Saccharomyces cerevisiae. Several pretreatments (mechanical, chemical, thermal, and thermo-chemical) were performed on the anaerobic digested sludge (ADS) to make the nutrients accessible to the yeast cells. Preliminary experim ...
DOI:
10.1007/s13762-015-0925-8

17. Anaerobic digestion of recalcitrant textile dyeing sludge with alternative pretreatment strategies

Author:
Xinyi Xiang; Xiaoguang Chen; Ruobin Dai; Ying Luo; Puyue Ma; Shengsheng Ni; Chengyu Ma
Source:
Bioresource technology 2016 v.222 pp. 252-260
ISSN:
0960-8524
Subject:
alkali treatment; anaerobic digestion; aromatic amines; biogas; color; dyeing; fabrics; hydrolysis; hydrophilicity; methane; methane production; reactive dyes; sludge; solubilization
Abstract:
... Abundant organic compounds in textile dyeing sludge (TDS) provide possibility for its anaerobic digestion (AD) treatment. However, preliminary test showed little biogas generation in direct AD of the TDS during 20days. In order to improve the AD availability of TDS, alkaline, acid, thermal and thermal alkaline pretreatments were performed. Color and aromatic amines were specifically measured as ex ...
DOI:
10.1016/j.biortech.2016.09.098

18. Antioxidant activity in vitro and in vivo of the polysaccharides from different varieties of Auricularia auricula

Author:
Siqi Xu; Yongjun Zhang; Kan Jiang
Source:
Food & function 2016 v.7 no.9 pp. 3868-3879
ISSN:
2042-650X
Subject:
2,2-diphenyl-1-picrylhydrazyl; Auricularia auricula; alkali treatment; antioxidant activity; arabinose; glucose; hydroxyl radicals; mannose; models; oxidative stress; polysaccharides; superoxide dismutase; xylose; China
Abstract:
... In this study, five different kinds of polysaccharides (AAP1, AAP2, AAP3, AAP4, and AAP5) were extracted from different varieties of Auricularia auricula through an alkali extraction process. Furthermore, the crude polysaccharides were deproteinized by the Sevag method. Auricularia auricula produced in the Shanxi province had the highest content of polysaccharide, 53.02%. The monosaccharide compos ...
DOI:
10.1039/c6fo00686h

19. Antioxidant and ACE-inhibitory activities of hemp (Cannabis sativa L.) protein hydrolysates produced by the proteases AFP, HT, Pro-G, actinidin and zingibain

Author:
Sue-Siang Teh; Alaa El-Din A. Bekhit; Alan Carne; John Birch
Source:
Food chemistry 2016 v.203 pp. 199-206
ISSN:
0308-8146
Subject:
Cannabis sativa; alkali treatment; antioxidants; bioactive properties; enzymatic hydrolysis; hemp; hydrolysates; hydrolysis; hydrophobicity; particle size; polyacrylamide gel electrophoresis; protein hydrolysates; protein isolates; proteinases; zeta potential
Abstract:
... Hemp protein isolates (HPIs) were hydrolysed by proteases (AFP, HT, ProG, actinidin and zingibain). The enzymatic hydrolysis of HPIs was evaluated through the degree of hydrolysis and SDS-PAGE profiles. The bioactive properties of the resultant hydrolysates (HPHs) were accessed through ORAC, DPPḢ scavenging and ACE-inhibitory activities. The physical properties of the resultant HPHs were evaluated ...
DOI:
10.1016/j.foodchem.2016.02.057

20. Antioxidant and Physicochemical Properties of Hydrogen Peroxide‐Treated Sugar Beet Dietary Fibre

Author:
Aleksandra Mišan; Marijana Sakač; Đorđe Medić; Vanja Tadić; Goran Marković; Julliana Gyura; Ester Pagano; Angelo A. Izzo; Francesca Borrelli; Bojana Šarić; Ivan Milovanović; Nataša Milić
Source:
Phytotherapy research 2016 v.30 no.5 pp. 855-860
ISSN:
0951-418X
Subject:
dietary fiber; sugar beet; hydrogen peroxide; ferulic acid; antioxidant activity; hydrogen; alkali treatment; ethanol
Abstract:
... The aim of the present work was to examine if hydrogen peroxide treatment of sugar beet fibre that aimed at improving its physicochemical properties would impair its antioxidant potential. Three different sugar beet fibres were obtained from sugar beet – non‐treated fibre (NTF) from sugar beet cossettes extracted with sulphurous acid, treated fibre (TF) from NTF treated with hydrogen peroxide in a ...
DOI:
10.1002/ptr.5598

21. Application of slightly acidic electrolyzed water for decontamination of stainless steel surfaces in animal transport vehicles

Author:
Li Ni; Weichao Zheng; Qiang Zhang; Wei Cao; Baoming Li
Source:
Preventive veterinary medicine 2016 v.133 pp. 42-51
ISSN:
0167-5877
Subject:
Escherichia coli; Salmonella Typhimurium; Staphylococcus aureus; acidity; aerobes; alkali treatment; alkalinity; animal transport; antibacterial properties; bacteria; chlorine; cotton; decontamination; disinfection; electrolyzed water; microbial contamination; pathogens; phenol; spraying; stainless steel; water treatment
Abstract:
... The effectiveness of slightly acidic electrolyzed water (SAEW) in reducing Escherichia coli, Salmonella typhimurim, Staphylococcus aureus or bacterial mixtures on stainless steel surfaces was evaluated and compared its efficacy with composite phenol solution for reducing total aerobic bacteria in animal transport vehicles. Stainless steel surfaces were inoculated with these strains individually or ...
DOI:
10.1016/j.prevetmed.2016.09.010

22. Appropriate biorefining strategies for multiple feedstocks: Critical evaluation for pretreatment methods, and hydrolysis with high solids loading

Author:
Yadhu N. Guragain; Donghai Wang; Praveen V. Vadlani
Source:
Renewable energy 2016 v.96 pp. 832-842
ISSN:
0960-1481
Subject:
alkali treatment; biofuels; biomass; biorefining; culture media; feedstocks; fermentation; glucose; grasses; hardwood; hydrolysates; hydrolysis; softwood; streams; xylose
Abstract:
... Efficient utilization of a wide range of feedstocks requires appropriate biorefining strategies based on pretreatment methods. This study showed that alkali pretreatment was significantly more effective than acid pretreatment at similar processing conditions for grass and hardwood biomass samples; but, both methods were ineffective for softwood biomass. Separate glucose and xylose streams can be o ...
DOI:
10.1016/j.renene.2016.04.099

23. Appropriate conditions for applying NaOH-pretreated two-phase olive milling waste for codigestion with food waste to enhance biogas production

Author:
Jumana Al-Mallahi; Toru Furuichi; Kazuei Ishii
Source:
Waste management 2016 v.48 pp. 430-439
ISSN:
0956-053X
Subject:
alkali treatment; alkalinity; biogas; business enterprises; chemical oxygen demand; electricity; food processing wastes; food waste; methane; methane production; mixing; oleic acid; pH; sodium; sodium hydroxide; volatile fatty acids; waste management
Abstract:
... The high methane gas production potential of two phase olive milling waste (2POMW) makes its application to biogas plants in business an economical process to increase the productivity of the plants. The objective of this study was to investigate the appropriate conditions for the codigestion of NaOH-pretreated 2POMW with food waste. NaOH pretreatment can increase the methane production by increas ...
DOI:
10.1016/j.wasman.2015.10.009

24. Assessment of Postharvest Dehydration Kinetics and Skin Mechanical Properties of “Muscat of Alexandria” Grapes by Response Surface Methodology

Author:
Onofrio Corona; Fabrizio Torchio; Simone Giacosa; Susana Río Segade; Diego Planeta; Vincenzo Gerbi; Margherita Squadrito; Fabio Mencarelli; Luca Rolle
Source:
Food and bioprocess technology 2016 v.9 no.6 pp. 1060-1069
ISSN:
1935-5130
Subject:
alkali treatment; dipping; hardness; mechanical properties; regression analysis; response surface methodology; small fruits; sodium hydroxide; weight loss; wine grapes
Abstract:
... The dipping of berries in a dilute solution of sodium hydroxide during a short time was evaluated as pretreatment undertaken prior to convective dehydration of wine grapes. The impact of the sodium hydroxide content and dipping time on weight loss (WL) at different dehydration times was thoroughly assessed using central composite design (CCD) and response surface methodology (RSM). Furthermore, th ...
DOI:
10.1007/s11947-016-1697-y

25. Assessment of alkaline pretreatment for the production of bioethanol from eucalyptus, sugarcane bagasse and sugarcane straw

Author:
Danila Morais de Carvalho; José Humberto de Queiroz; Jorge Luiz Colodette
Source:
Industrial crops and products 2016 v.94 pp. 932-941
ISSN:
0926-6690
Subject:
Eucalyptus; alkali treatment; biotransformation; cellulose; chemical composition; delignification; ethanol; ethanol production; fermentation; glucose; grasses; hemicellulose; lignin; raw materials; saccharification; sodium hydroxide; solubility; straw; sugarcane bagasse
Abstract:
... The impact of alkaline pretreatment at different alkaline charges (5%, 10% and 15% NaOH w/w, on dry basis) on the chemical composition of eucalyptus, sugarcane bagasse and straw were compared with the subsequent bioconversion into ethanol, using semi-simultaneous saccharification and fermentation (SSSF). By increasing alkaline charge in pretreatments, substantial amount of lignin, hemicelluloses a ...
DOI:
10.1016/j.indcrop.2016.09.069

26. BIOSORPTION OF CD, CR, MN, AND PB FROM AQUEOUS SOLUTIONS BY Bacillus SP STRAINS ISOLATED FROM INDUSTRIAL WASTE ACTIVATE SLUDGE

Author:
Rocío García; Juan Campos; Julio Alfonso Cruz; Ma. Elena Calderón; Ma. Elena Raynal; Germán Buitrón
Source:
TIP 2016 v.19 no.1 pp. 5-14
ISSN:
1405-888X
Subject:
Bacillus (bacteria); acid treatment; activated sludge; adsorption; alkali treatment; aqueous solutions; bacteria; biomass; biosorbents; biosorption; cadmium; chromium; heavy metals; industrial wastes; industrial wastewater; ion exchange; lead; manganese; metal ions; metal tolerance; toxicity; waste treatment
Abstract:
... The microorganisms are capable of accumulating heavy metal ions from water as biosorbent agents, offering a potential alternative for the detoxification and recovery of toxic/precious metals in industrial wastewater. In the present work, metal-resistant bacterial strains were isolated and identified from activated sludge of a waste treatment plant in the Municipality of Santa Rosa Jauregui, Querét ...
DOI:
10.1016/j.recqb.2016.02.001

27. Bactericidal and virucidal mechanisms in the alkaline disinfection of compost using calcium lime and ash

Author:
Nowaki Hijikata; Rui Tezuka; Shinobu Kazama; Masahiro Otaki; Ken Ushijima; Ryusei Ito; Satoshi Okabe; Daisuke Sano; Naoyuki Funamizu
Source:
Journal of environmental management 2016 v.181 pp. 721-727
ISSN:
0301-4797
Subject:
alkali treatment; enteropathogens; mixing; calcium oxide; calcium; capsid; composts; pathogenicity; coliphages; pH; disinfection; RNA; enzyme activity; Escherichia coli
Abstract:
... In the present study, the bactericidal and virucidal mechanisms in the alkaline disinfection of compost with calcium lime and ash were investigated. Two indicator microorganisms, Escherichia coli and MS2 coliphage, were used as surrogates for enteric pathogens. The alkaline-treated compost with calcium oxide (CaO) or ash resulted primarily in damage to the outer membrane and enzyme activities of E ...
DOI:
10.1016/j.jenvman.2016.08.026

28. Bio-physicochemical analysis of ethylene oxide-linked diester-functionalized green cationic gemini surfactants

Author:
Mohd. Akram; Sana Anwar; Farah Ansari; Imtiyaz Ahmad Bhat; Kabir-ud-Din
Source:
RSC advances 2016 v.6 no.26 pp. 21697-21705
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; Gibbs free energy; adsorption; alkali treatment; biodegradability; cosmetics; cytotoxicity; emulsions; ethylene; fluorescence; foams; medicine; solubility; surface tension; surfactants
Abstract:
... A novel series of oxy-diester-functionalized gemini surfactants (Cₘ-E2O-Cₘ) was synthesized and the physicochemical parameters were evaluated by surface tension and steady-state fluorescence measurements. Negative values of Gibbs free energy change of adsorption and micellization indicate that adsorption and micellization of Cₘ-E2O-Cₘ gemini surfactants are spontaneous. These surfactants have lowe ...
DOI:
10.1039/c5ra28129f

29. Bioethanol production from pretreated Miscanthus floridulus biomass by simultaneous saccharification and fermentation

Author:
Ren-Hua Yeh; Yu-Sheng Lin; Tzu-Hsien Wang; Wei-Chih Kuan; Wen-Chien Lee
Source:
Biomass and bioenergy 2016 v.94 pp. 110-116
ISSN:
0961-9534
Subject:
C4 plants; Miscanthus floridulus; Saccharomyces cerevisiae; alkali treatment; ambient temperature; biomass; cellulases; delignification; enzymatic hydrolysis; ethanol; ethanol production; fermentation; glucans; grasses; hemicellulose; lignin; raw materials; saccharification; stems; yeasts
Abstract:
... The production of ethanol from the fast-growing perennial C4 grass Miscanthus floridulus by simultaneous saccharification and fermentation (SSF) was investigated. M. floridulus biomass was composed of 36.3% glucan, 22.8% hemicellulose, and 21.3% lignin (based on dried mass). Prior to SSF, harvested stems of M. floridulus were pretreated separately by alkali treatment at room temperature, alkali tr ...
DOI:
10.1016/j.biombioe.2016.08.009

30. Biological Degumming of Silk Fabrics with Proteolytic Enzymes

Author:
Juhea Kim; MiYeon Kwon; Suyeon Kim
Source:
Journal of natural fibers 2016 v.13 no.6 pp. 629-639
ISSN:
1544-046X
Subject:
alkali treatment; degumming; fibroins; physical properties; proteolysis; scanning electron microscopy; sericin; silk; silk fabric; staining; subtilisin; tensile strength; weight loss
Abstract:
... The biological degumming of silk fibers was studied using alkaline proteases such as Savinase and Alcalase, comparing with conventional alkaline treatments. Degumming efficiency was evaluated by measuring the residual silk sericin in terms of weight loss and surface staining with reactive dye. The water absorbency and tensile strength were measured to characterize surface and physical properties, ...
DOI:
10.1080/15440478.2015.1093578

31. Biomass pretreatments capable of enabling lignin valorization in a biorefinery process

Author:
Robert H Narron; Hoyong Kim; Hou-min Chang; Hasan Jameel; Sunkyu Park
Source:
Current opinion in biotechnology 2016 v.38 pp. 39-46
ISSN:
0958-1669
Subject:
alkali treatment; biomass; biorefining; chemical structure; delignification; fuels; income; lignin; lignocellulose
Abstract:
... Recent techno-economic studies of proposed lignocellulosic biorefineries have concluded that creating value from lignin will assist realization of biomass utilization into valuable fuels, chemicals, and materials due to co-valorization and the new revenues beyond carbohydrates. The pretreatment step within a biorefinery process is essential for recovering carbohydrates, but different techniques an ...
DOI:
10.1016/j.copbio.2015.12.018
CHORUS:
10.1016/j.copbio.2015.12.018
Chorus Open Access:
10.1016/j.copbio.2015.12.018

32. Biomethane potential of industrial paper wastes and investigation of the methanogenic communities involved

Author:
Andreas Walter; Sandra Silberberger; Marina Fernández-Delgado Juárez; Heribert Insam; Ingrid H. Franke-Whittle
Source:
Biotechnology for biofuels 2016 v.9 no.1 pp. 21
ISSN:
1754-6834
Subject:
Methanosarcina; alkali treatment; anaerobic digestion; biogas; community structure; denaturing gradient gel electrophoresis; digestion; hemicellulose; industrial wastes; lignocellulose; methane; methanogens; microarray technology; organic matter; paper; papermaking; pulp and paper industry; quantitative polymerase chain reaction; temperature; ultrasonics; wood pulp
Abstract:
... BACKGROUND: Cellulose-containing waste products from the agricultural or industrial sector are potentially one of the largest sources of renewable energy on earth. In this study, the biomethane potential (BMP) of two types of industrial paper wastes, wood and pulp residues (WR and PR, respectively), were evaluated under both mesophilic and thermophilic conditions, and various pretreatment methods ...
DOI:
10.1186/s13068-016-0435-z
PubMed:
26819629
PubMed Central:
PMC4728753

33. Biorefinery approach towards greener succinic acid production from oil palm frond bagasse

Author:
Abdullah Amru Indera Luthfi; Jamaliah Md. Jahim; Shuhaida Harun; Jian Ping Tan; Abdul Wahab Mohammad
Source:
Process biochemistry 2016 v.51 no.10 pp. 1527-1537
ISSN:
1359-5113
Subject:
Actinobacillus succinogenes; Elaeis guineensis; alkali treatment; bagasse; batch fermentation; biomass; biorefining; carbon; enzymatic hydrolysis; fats and oils industry; formates; glucose; hydrolysates; raw materials; succinic acid; xylose
Abstract:
... Oil palm frond (OPF) bagasse, being one of the cheapest biomass ever reported ($19.4/t), was hydrolyzed and used as a raw material for fermentative production of succinic acid for the first time. Results indicated that glucose and xylose were released as the main carbon source after alkaline pretreatment followed by enzymatic hydrolysis. The resultant hydrolysate from the pretreated OPF bagasse wa ...
DOI:
10.1016/j.procbio.2016.08.011

34. Biorefinery process for the simultaneous recovery of lignin, hemicelluloses, cellulose nanocrystals and silica from rice husk and Arundo donax

Author:
Davide Barana; Anika Salanti; Marco Orlandi; Danish S. Ali; Luca Zoia
Source:
Industrial crops and products 2016 v.86 pp. 31-39
ISSN:
0926-6690
Subject:
Arundo donax; acid hydrolysis; alkali treatment; biorefining; cellulose; chlorine; chromatography; hemicellulose; leaching; lignin; nanocrystals; rice hulls; silica; spectral analysis; sulfuric acid
Abstract:
... An integrated biorefinery process based on acidic leaching, alkaline treatment and concentrated sulfuric acid hydrolysis was set up for the simultaneous recovery of lignin, hemicelluloses, silica, and cellulose nanocrystals (CNCs) from Arundo donax and rice husk. These fractions can serve as viable source of bio-chemicals with potential high-value applications. A chromatographic and spectroscopic ...
DOI:
10.1016/j.indcrop.2016.03.029

35. Biosorption and retention of orthophosphate onto Ca(OH)2-pretreated biomass of Phragmites sp.

Author:
Giorgos Markou; Dimitris Mitrogiannis; Koenraad Muylaert; Abuzer Çelekli; Hüseyin Bozkurt
Source:
Journal of environmental sciences (China) 2016 v.45 pp. 49-59
ISSN:
1001-0742
Subject:
Phragmites; agricultural industry; alkali treatment; biomass; biosorption; calcium; calcium hydroxide; electrostatic interactions; environmental impact; fertilizers; kinetics; leaves; ligands; orthophosphates; phosphorus; soil conditioners; sorption isotherms; thermodynamics; wastewater
Abstract:
... The biosorption of phosphorus in the form of orthophosphate (Po) from wastewater using biomass as the sorbent is of potential importance because the Po-loaded biomass could be applied in the agricultural sector as fertilizer and soil conditioner. However, biomass generally displays a very low affinity for Po sorption and therefore biomass surface modification is required. In the present study, the ...
DOI:
10.1016/j.jes.2015.12.009

36. Butanol production employing fed-batch fermentation by Clostridium acetobutylicum GX01 using alkali-pretreated sugarcane bagasse hydrolysed by enzymes from Thermoascus aurantiacus QS 7-2-4

Author:
Zong-Wen Pang; Wei Lu; Hui Zhang; Zheng-Wu Liang; Jing-Juan Liang; Liang-Wei Du; Cheng-Jie Duan; Jia-Xun Feng
Source:
Bioresource technology 2016 v.212 pp. 82-91
ISSN:
0960-8524
Subject:
Clostridium acetobutylicum; alkali treatment; batch fermentation; biological production; butanol; cellulose; enzymes; feedstocks; hemicellulose; hydrolysates; lignin; sugarcane bagasse; sugars
Abstract:
... Sugarcane bagasse (SB) is a potential feedstock for butanol production. However, biological production of butanol from SB is less economically viable. In this study, evaluation of eight pretreatments on SB showed that alkali pretreatment efficiently removed lignin from SB while retaining the intact native structure of the released microfibrils. In total, 99% of cellulose and 100% of hemicellulose ...
DOI:
10.1016/j.biortech.2016.04.013

37. Carrageenans from nuclear phases of subantartic Mazzaella laminarioides (Gigartinales, Rhodophyta) and graft copolymerization of alkali-modified carrageenan with acrylamide

Author:
Franco Arias; Andrés Mansilla; Betty Matsuhiro; Jorge Pavez; Rodrigo Torres; Mauricio Yáñez-Sánchez
Source:
Journal of applied phycology 2016 v.28 no.2 pp. 1275-1286
ISSN:
0921-8971
Subject:
Fourier transform infrared spectroscopy; Gigartinales; acrylamides; alkali treatment; ammonium nitrate; carrageenan; ceric ammonium nitrate; composite polymers; ecoregions; hybrids; microwave radiation; microwave treatment; nuclear magnetic resonance spectroscopy; polyacrylamide; sulfates; Chile
Abstract:
... Aqueous extraction of cystocarpic, tetrasporic, and vegetative individuals of Mazzaella laminariodes collected in the Magellan Ecoregion, Southern Chile, afforded sulfated galactans. Analysis by Fourier transform infrared spectroscopy (FT-IR) and by ¹H and ¹³C NMR spectroscopy indicated that purified extracts from cystocarpic (CP) and vegetative individuals (VP) were mixtures of κ/ι-type carrageen ...
DOI:
10.1007/s10811-015-0641-2

38. Cellulase production using natural medium and its application on enzymatic hydrolysis of thermo chemically pretreated biomass

Author:
Shivani Sharma; Vinay Sharma; Arindam Kuila
Source:
3 Biotech 2016 v.6 no.2 pp. 139
ISSN:
2190-572X
Subject:
Aspergillus niger; alkali treatment; bioethanol; biomass; cellulose; chemical composition; coconut water; cotton; endo-1,4-beta-glucanase; enzymatic hydrolysis; glucose; hemicellulose; lignin; lignocellulose; maltose; mannose; reducing sugars; scanning electron microscopy; sodium hydroxide; spectroscopy; submerged fermentation; temperature; thin layer chromatography; waste paper; wheat straw; xylose
Abstract:
... Lignocellulosic bioethanol is an important renewable fuel for transportation purpose. Commercial production of lignocellulosic bioethanol mainly depends on cost of cellulase production, efficient pretreatment and enzymatic hydrolysis process. In the present study cellulase production from Aspergillus niger under submerged fermentation (SmF) was optimized using coconut water as natural medium. Maxi ...
DOI:
10.1007/s13205-016-0465-z
PubMed:
28330211
PubMed Central:
PMC4919950

39. Characteristics of Gelatin Extracted from the Swim Bladder of Yellowfin Tuna (Thunnus albacores) as Affected by Alkaline Pretreatments

Author:
Onouma Kaewdang; Soottawat Benjakul; Thummanoon Prodpran; Thammarat Kaewmanee; Hideki Kishimura
Source:
Journal of aquatic food product technology 2016 v.25 no.8 pp. 1190-1201
ISSN:
1547-0636
Subject:
Fourier transform infrared spectroscopy; Thunnus albacares; alkali treatment; gel strength; gelatin; gelation; imino acids; melting; microstructure; sodium; sodium hydroxide; swim bladder; temperature
Abstract:
... Gelatins extracted from the swim bladder of yellowfin tuna (Thunnus albacores) using various alkaline pretreatments were characterized. Alkaline mixtures (Na ₂CO ₃:NaOH) at different ratios (9:1, 8:2, 7:3, and 6:4) with a concentration of 4% (w/v) were used. The corresponding gelatins termed “G1,” “G2,” “G3,” and “G4” had yields of 9.78, 14.91, 35.96, and 13.60% (dry weight basis), respectively. A ...
DOI:
10.1080/10498850.2015.1043418

40. Characterization of anatomy, lignin distribution, and response to pretreatments of sugarcane culm node and internode

Author:
Michel Brienzo; Yuri Abud; Solange Ferreira; Roberta C.N.R Corrales; Viridiana S. Ferreira-Leitão; Wanderley de Souza; Celso Sant’Anna
Source:
Industrial crops and products 2016 v.84 pp. 305-313
ISSN:
0926-6690
Subject:
alkali treatment; biomass; chemical composition; crystal structure; culms; digestibility; enzymatic hydrolysis; ethanol; hemicellulose; industry; lignin; scanning electron microscopy; sugarcane; sugarcane bagasse; sugars; vascular bundles
Abstract:
... Sugarcane culm has different types of tissue organization, and its heterogeneity can influence the bagasse quality generated in the sugar/ethanol industry. The heterogeneity of the sugarcane bagasse contributes to the intrinsic recalcitrance of the biomass, impairing its conversion to ethanol. To determine the effects of sugarcane culm heterogeneity, the internode and node fractions were pretreate ...
DOI:
10.1016/j.indcrop.2016.01.039

41. Characterization of cellulose nanofiber sheets from different refining processes

Author:
Kohji Nobuta; Hiroshi Teramura; Hiroaki Ito; Chizuru Hongo; Hideo Kawaguchi; Chiaki Ogino; Akihiko Kondo; Takashi Nishino
Source:
Cellulose 2016 v.23 no.1 pp. 403-414
ISSN:
0969-0239
Subject:
X-ray diffraction; alkali treatment; biomass; cellulose; delignification; filtration; grinding; hemicellulose; kenaf; nanofibers; refining; roots; tensile strength
Abstract:
... Four types of kenaf bast fibers were prepared via a combination of Wise treatments, for delignification, and alkaline treatments, for the removal of hemicellulose. Each type of kenaf bast fiber with different refining processes were nano fibrillated by grinding. Resulting, cellulose nanofiber (CNF) sheet was obtained from CNF by vacuum filtration (Scheme 1). The structures and properties of these ...
DOI:
10.1007/s10570-015-0792-y

42. Characterization of rice starch and protein obtained by a fast alkaline extraction method

Author:
Daiana de Souza; Arthur Francisco Sbardelotto; Denize Righetto Ziegler; Ligia Damasceno Ferreira Marczak; Isabel Cristina Tessaro
Source:
Food chemistry 2016 v.191 pp. 36-44
ISSN:
0308-8146
Subject:
alkali treatment; amino acid composition; centrifugation; chemical precipitation; cold; cost effectiveness; denaturation; gelatinization; industry; ingredients; protein concentrates; protein content; rice; rice flour; rice starch; sodium hydroxide; starch
Abstract:
... This study evaluated the characteristics of rice starch and protein obtained by a fast alkaline extraction method on rice flour (RF) derived from broken rice. The extraction was conducted using 0.18% NaOH at 30°C for 30min followed by centrifugation to separate the starch rich and the protein rich fractions. This fast extraction method allowed to obtain an isoelectric precipitation protein concent ...
DOI:
10.1016/j.foodchem.2015.03.032

43. Chemical and structural analysis of alkali pretreated pinewood for efficient ethanol production

Author:
Mahboubeh S. Noori; Keikhosro Karimi
Source:
RSC advances 2016 v.6 no.70 pp. 65683-65690
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; absorbance; adsorption; alkali treatment; buffering capacity; cellulases; cellulose; crystal structure; enzymatic hydrolysis; ethanol; ethanol production; fermentation; glucose; lignin content; nonionic surfactants; pH; polysorbates; scanning electron microscopy; sodium hydroxide; softwood; temperature
Abstract:
... Improvement of enzymatic hydrolysis and ethanol production from softwood pine was conducted by pretreatment with 8% (w/v) NaOH at different temperatures of 0, 25, and 80 °C for 2 h. Compared with the untreated wood, the lowest temperature resulted in the highest improvement of 271.1 and 218.2% in glucose and ethanol production yields, respectively. In addition to the pretreatment, Tween-20 as a no ...
DOI:
10.1039/c6ra11486e

44. Chemical nature of residual phosphorus in Andisols

Author:
Gabriela Velásquez; Phuong-Thi Ngo; Cornelia Rumpel; Marcela Calabi-Floody; Yonathan Redel; Benjamin L. Turner; Leo M. Condron; María de la Luz Mora
Source:
Geoderma 2016 v.271 pp. 27-31
ISSN:
0016-7061
Subject:
inorganic phosphorus; fractionation; Andisols; nuclear magnetic resonance spectroscopy; bioavailability; orthophosphates; pastures; alkali treatment
Abstract:
... Sequential fractionation has been widely used to study the nature and dynamics of soil P. Residual P – the recalcitrant P fraction remaining after sequential extraction with alkali and acid reagents – often constitutes the majority of the soil P, yet its nature and bioavailability is poorly understood. The objective of this study was to isolate, quantify, and characterize residual P following Hedl ...
DOI:
10.1016/j.geoderma.2016.01.027

45. Chitin Nanofibers as Reinforcing and Antimicrobial Agents in Carboxymethyl Cellulose Films: Influence of Partial Deacetylation

Author:
Li Mei-Chun; Wu Qinglin; Song Kunlin; Cheng H. N.; Suzuki Shigehiko; Lei Tingzhou
Source:
ACS sustainable chemistry 2016 v.4 no.8 pp. 4385-4395
ISSN:
2168-0485
Subject:
Portunidae; active food packaging; alkali treatment; anti-infective agents; antimicrobial properties; aqueous solutions; biopolymers; carboxymethylcellulose; chitin; crabs; films (materials); mechanical properties; nanofibers
Abstract:
... The development of edible, environmentally friendly, mechanically strong and antimicrobial biopolymer films for active food packaging has gained considerable interest in recent years. The present work deals with the extraction and deacetylation of chitin nanofibers (ChNFs) from crab shells and their utilization as reinforcing and antimicrobial agents in carboxymethyl cellulose (CMC) films. ChNFs w ...
DOI:
10.1021/acssuschemeng.6b00981
CHORUS:
10.1021/acssuschemeng.6b00981

46. Coagulant recovery and reuse for drinking water treatment

Author:
James Keeley; Peter Jarvis; Andrea D. Smith; Simon J. Judd
Source:
Water research 2016 v.88 pp. 502-509
ISSN:
0043-1354
Subject:
activated carbon; alkali treatment; byproducts; cation exchange; coagulants; disinfection; drinking water; iron; organic compounds; pH; risk; sludge; solubilization; turbidity; ultrafiltration; waste disposal; water quality; water treatment; water utilities; water utilization
Abstract:
... Coagulant recovery and reuse from waterworks sludge has the potential to significantly reduce waste disposal and chemicals usage for water treatment. Drinking water regulations demand purification of recovered coagulant before they can be safely reused, due to the risk of disinfection by-product precursors being recovered from waterworks sludge alongside coagulant metals. While several full-scale ...
DOI:
10.1016/j.watres.2015.10.038

47. Coeffect of Na+ and Tetrapropylammonium (TPA+) in Alkali Treatment on the Fabrication of Mesoporous ZSM-5 Catalyst for Methanol-to-Hydrocarbons Reactions

Author:
Wan Weili; Fu Tingjun; Qi Ruiyue; Shao Juan; Li Zhong
Source:
Industrial & Engineering Chemistry Research 2016 v.55 no.51 pp. 13040-13049
ISSN:
1520-5045
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; alkali treatment; atomic absorption spectrometry; catalysts; crystal structure; engineering; nitrogen; nuclear magnetic resonance spectroscopy; porous media; protective effect; quaternary ammonium compounds; silicon; sodium; sodium hydroxide; sorption
Abstract:
... This investigation focused on the study of formation mechanism for highly mesoporous ZSM-5 under the introduction of tetrapropylammonium hydroxide (TPAOH) during NaOH treatment. Determined based on N₂ sorption, transmission electron spectroscopy, scanning electron spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, inductively coupled plasma atomic emission spectroscopy, and ²⁹Si ma ...
DOI:
10.1021/acs.iecr.6b03938

48. Cogon grass (Imperata cylindrica), a potential biomass candidate for bioethanol: cell wall structural changes enhancing hydrolysis in a mild alkali pretreatment regime

Author:
Md Azizul Haque; Dhirendra Nath Barman; Min Keun Kim; Han Dae Yun; Kye Man Cho
Source:
Journal of the science of food and agriculture 2016 v.96 no.5 pp. 1790-1797
ISSN:
0022-5142
Subject:
Fourier transform infrared spectroscopy; Imperata cylindrica; alkali treatment; atomic force microscopy; bioethanol; biomass; cell walls; cellulose; granules; grasses; hemicellulose; hydrolysis; lignin; reducing sugars; scanning electron microscopy; sodium hydroxide; waxes
Abstract:
... BACKGROUND: Imperata cylindrica is being considered as a biomass candidate for bioethanol. This work aimed to evaluate a mild alkali pretreatment effect on the Imperata recalcitrant structure. Therefore, varied concentrations of NaOH (0, 7.5, 15, 20, and 25 g L⁻¹) were applied as treatments to Imperata at 105 °C for 10 min. RESULTS: Scanning electron microscopy, atomic force microscopy, and Fourie ...
DOI:
10.1002/jsfa.7288

49. Combining Ultrasound with Mild Alkaline Solutions as an Effective Pretreatment to Boost the Release of Sugar Trapped in Sugarcane Bagasse for Bioethanol Production

Author:
Marzieh Eblaghi; Mehrdad Niakousari; Mohammad Sarshar; Gholam Reza Mesbahi
Source:
Journal of food process engineering 2016 v.39 no.3 pp. 273-282
ISSN:
0145-8876
Subject:
X-ray diffraction; alkali treatment; bioenergy industry; biomass; cellulose; corn; crystal structure; digestibility; ethanol fermentation; ethanol production; feedstocks; food crops; glucose; hydrolysis; lignocellulose; microstructure; plant residues; scanning electron microscopy; sodium hydroxide; sugarcane; sugarcane bagasse; temperature
Abstract:
... The aim of this work was to develop and optimize process parameters in ultrasound and sono‐assisted alkaline pretreatment of sugarcane bagasse prior to hydrolysis and bioethanol fermentation processes. Following the optimization of ultrasound time and temperature, the influence of concentration of NaOH solution was examined. The optimal condition in ultrasound pretreatment (35 kHz) was achieved at ...
DOI:
10.1111/jfpe.12220

50. Comparative study of extraction efficiency and composition of protein recovered from chicken liver by acid–alkaline treatment

Author:
Guoyuan Xiong; Xueqin Gao; Peng Wang; Xinglian Xu; Guanghong Zhou
Source:
Process biochemistry 2016 v.51 no.10 pp. 1629-1635
ISSN:
1359-5113
Subject:
acid treatment; actin; alkali treatment; chickens; humans; liver; myosin heavy chains; pH; polyacrylamide gel electrophoresis; protein composition; solubilization
Abstract:
... This study focused on the extraction efficiency and composition of proteins recovered from chicken liver after extraction by acid/alkaline solubilization (pH 2.0, 2.5, 3.0 and 3.5) and (pH 10.5, 11.0, 11.5 and 12.0) and precipitation in pH 5.5. The highest extracted protein yield was obtained at pH values of 2.0, 11.5 and 12.0 (77.9%, 78.4% and 79.3% respectively), and the lowest yield (58.5%) was ...
DOI:
10.1016/j.procbio.2016.07.007