Citations with the tag: HEMICELLULOSE
Results 1 - 50
- Hemicellulose bioconversion.
Saha, Badal C. // Journal of Industrial Microbiology & Biotechnology; May2003, Vol. 30 Issue 5, p279
Abstract Various agricultural residues,such as cornfiber,corn stover,wheat straw,rice straw,and sugarcane bagasse,contain about 20 --40%hemicellulose,the second most abundant polysaccharide in nature.The conversion of hemicellulose to fuels and chemicals is problematic.In this paper,various...
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p204
A definition of hemicellulose is presented.
- RELATIONSHIPS BETWEEN MECHANICAL PROPERTIES, WEIGHT LOSS, AND CHEMICAL COMPOSITION OF WOOD DURING INCIPIENT BROWN-ROT DECAY.
Curling, Simon F.; Clausen, Carol A.; Winandy, Jerrold E. // Forest Products Journal; Jul/Aug2002, Vol. 52 Issue 7/8, p34
Presents a study that investigated the effect of decay on hemicellulose composition. Relationship of decay to the mechanical properties of the wood; Effect of decay on strength and weight of hemicellulose; Impact of decay on the chemical composition of hemicellulose.
- Chemical Breakthrough Shows Biofuel Promise.
Munro, Edith // Hay & Forage Grower; Jan2013, Vol. 28 Issue 1, p25
The article presents information on a research related to an alternative approach for breaking cellulose and hemicellulose molecules in corn stover biomass.
- The synergistic effect on production of lignin-modifying enzymes through submerged co-cultivation of Phlebia radiata, Dichomitus squalens and Ceriporiopsis subvermispora using agricultural residues.
Dong, Ya-Chen; Wang, Wei; Hu, Zhong-Ce; Fu, Ming-Liang; Chen, Qi-He // Bioprocess & Biosystems Engineering; Jun2012, Vol. 35 Issue 5, p751
The lignin-modifying enzymes (LMEs) play an important role in decomposition of agricultural residues, which contain a certain amount of lignin. In this study, the production of LMEs by three co-cultivated combinations of Phlebia radiata, Dichomitus squalens and Ceriporiopsis subvermispora and...
Dong, Ya-Chen; Wang, Wei; Hu, Zhong-Ce; Fu, Ming-Liang; Chen, Qi-He // Taber's Cyclopedic Medical Dictionary (2009); 2009, Issue 21, p1038
An encyclopedia entry for "hemicellulose," which refers to one of a group of polysaccharides that differ from cellulose because they may be hydrolyzed by dilute mineral acids, and from other polysaccharides because they are not readily digested by amylases, is presented.
- Substrate Dependency and Effect of Xylanase Supplementation on Enzymatic Hydrolysis of Ammonia-Treated Biomass.
Rajesh Gupta; Tae Kim; Yoon Lee // Applied Biochemistry & Biotechnology; Mar2008, Vol. 148 Issue 1-3, p59
AbstractÂ Â Pretreatment based on aqueous ammonia was investigated under two different modes of operation: soaking in aqueous ammonia and ammonia recycle percolation. These processes were applied to three different feedstocks with varied composition: corn stover, high lignin (HL), and low...
- Evaluation of sugar cane hemicellulose hydrolyzate for cultivation of yeasts and filamentous fungi.
Pessoa, Jr., A.; de Mancilha, I. M.; Sato, S. // Journal of Industrial Microbiology & Biotechnology; Jun97, Vol. 18 Issue 6, p360
Sugar cane bagasse hemicellulosic fraction submitted to hydrolytic treatment with 100 mg of sulfuric acid per gram of dry mass, at 140ï¿½C for 20 min, was employed as a substrate for microbial protein production. Among the 22 species of microorganisms evaluated, Candida tropicalis IZ 1824...
- Xylanases from fungi: properties and industrial applications.
Polizeli, M. L. T. M.; Rizzatti, A. C. S.; Monti, R.; Terenzi, H. F.; Jorge, J. A.; Amorim, D. S. // Applied Microbiology & Biotechnology; Jun2005, Vol. 67 Issue 5, p577
Xylan is the principal type of hemicellulose. It is a linear polymer of ï¿½- D-xylopyranosyl units linked by (1ï¿½4) glycosidic bonds. In nature, the polysaccharide backbone may be added to 4- O-methyl-a- D-glucuronopyranosyl units, acetyl groups, a- L-arabinofuranosyl, etc., in variable...
- Fungal arabinan and l-arabinose metabolism.
Seiboth, Bernhard; Metz, Benjamin // Applied Microbiology & Biotechnology; Mar2011, Vol. 89 Issue 6, p1665
l-Arabinose is the second most abundant pentose beside d-xylose and is found in the plant polysaccharides, hemicellulose and pectin. The need to find renewable carbon and energy sources has accelerated research to investigate the potential of l-arabinose for the development and production of...
- Development and Characterization of an Environmentally Friendly Process Sequence (Autohydrolysis and Organosolv) for Wheat Straw Delignification.
Ruiz, H�ctor A.; Ruzene, Denise S.; Silva, Daniel P.; Macieira da Silva, Fernando F.; Vicente, Ant�nio A.; Teixeira, Jos� A. // Applied Biochemistry & Biotechnology; Jul2011, Vol. 164 Issue 5, p629
The present work describes the delignification of wheat straw through an environmentally friendly process resulting from sequential application of autohydrolysis and organosolv processes. Wheat straw autohydrolysis was performed at 180ï¿½C during 30 min with a liquid-solid ratio of 10 ( v/...
- Catalytic Performance of Corn Stover Hydrolysis by a New Isolate Penicillium sp. ECU0913 Producing both Cellulase and Xylanase.
Qian-Qian Shi; Jie Sun; Hui-Lei Yu; Chun-Xiu Li; Jie Bao; Jian-He Xu // Applied Biochemistry & Biotechnology; Aug2011, Vol. 164 Issue 6, p819
fungal strain, marked as ECU0913, producing high activities of both cellulase and xylanase was newly isolated from soil sample collected near decaying straw and identified as Penicillium sp. based on internal transcribed spacer sequence homology. The cultivation of this fungus produced both...
- A Xylanase Gene Directly Cloned from the Genomic DNA of Alkaline Wastewater Sludge Showing Application Potential in the Paper Industry.
Zhao, Yanyu; Luo, Huiying; Meng, Kun; Shi, Pengjun; Wang, Guozeng; Yang, Peilong; Yuan, Tiezheng; Yao, Bin // Applied Biochemistry & Biotechnology; Sep2011, Vol. 165 Issue 1, p35
A xylanase gene, aws-2x, was directly cloned from the genomic DNA of the alkaline wastewater sludge using degenerated PCR and modified TAIL-PCR. The deduced amino acid sequence of AWS-2x shared the highest identity (60%) with the xylanase from Chryseobacterium gleum belonging to the glycosyl...
- On Polydispersity of Plant Biomass Recalcitrance and Its Effects on Pretreatment Optimization for Sugar Production.
Zhu, J.; Verrill, Steve; Liu, Hao; Herian, Victoria; Pan, Xuejun; Rockwood, Donald // BioEnergy Research; Sep2011, Vol. 4 Issue 3, p201
This paper discusses a property associated with plant biomass recalcitrance to enzyme and microbial deconstructions in sugar production from cellulose and hemicelluloses. The hemicelluloses are more readily hydrolyzed to sugars than is cellulose. As a result, optimization to maximize individual...
- A Statistical Approach to Optimize Xylitol Production by Debaryomyces nepalensis NCYC 3413 in Vitro.
Kumdam, Hima Bindu; Murthy, Shweta N.; Gummadi, Sathyanarayana N. // Food & Nutrition Sciences; Aug2012, Vol. 3 Issue 8, p1027
Debaryomyces nepalensis NCYC 3413, halotolerant yeast isolated from rotten apple, was capable of utilizing components of hemicellulose hydrolysate such as glucose, galactose, mannose, xylose and arabinose. The organism utilizes xylose as a sole carbon source and produces xylitol. The...
- Use of Residual Biomass from the Textile Industry as Carbon Source for Production of a Low-Molecular-Weight Xylanase from Aspergillus oryzae.
Duarte Caetano, Gilvan; de Souza Moreira, Leonora Rios; G�mez-Mendoza, Diana Paola; Gon�alves de Siqueira, F�lix; Batista Lu�s, Roberto; Velho do Amaral, Lourdes Isabel; Ornelas Ricart, Carlos Andr�; Ferreira Filho, Edivaldo Ximenes // Applied Sciences (2076-3417); Dec2012, Vol. 2 Issue 4, p754
Pretreated dirty cotton residue (PDCR) from the textile industry was used as an alternative carbon source for the submerged cultivation of Aspergillus oryzae and the production of xylanases. The filtered culture supernatant was fractionated by ultrafiltration followed by three chromatographic...
- Comparison of diafiltration and size-exclusion chromatography to recover hemicelluloses from process water from thermomechanical pulping of spruce.
Alexandra Andersson; Tobias Persson; Guido Zacchi; Henrik StÃ¥lbrand; Ann-Sofi JÃ¶nsson // Applied Biochemistry & Biotechnology; Mar2007, Vol. 137 Issue 1-12, p971
AbstractÃ‚Â Ã‚Â Hemicelluloses constitute one of the most abundant renewable resources on earth. To increase their utilization, the isolation of hemicelluloses from industrial biomass side-streams would be beneficial. A method was investigated to isolate hemicelluloses from process...
- Heat extraction of corn fiber hemicellulose.
Zsuzsa BenkÅ; Alexandra Andersson; Zsolt Szengyel; Melinda GÃ¡spÃ¡r; Kati RÃ©czey; Henrik StÃ¥lbrand // Applied Biochemistry & Biotechnology; Mar2007, Vol. 137 Issue 1-12, p253
AbstractÃ‚Â Ã‚Â Water-soluble hemicellulose was extracted from corn fiber with microwave-assisted heat treatment. The effects of treatment temperature and initial pH of the aqueous extraction media were investigated regarding hemicellulose recovery and molecular mass of the isolated...
- Economic evaluation of isolation of hemicelluloses from process streams from thermomechanical pulping of spruce.
Tobias Persson; Anna-Karin Nordin; Guido Zacchi; Ann-Sofi JÃ¶nsson // Applied Biochemistry & Biotechnology; Mar2007, Vol. 137 Issue 1-12, p741
AbstractÃ‚Â Ã‚Â Hemicelluloses, which are abundant in nature and have potential use in a wide variety of applications, may make an important contribution in helping relieve society of its dependence on petrochemicals. However, cost-efficient methods for the isolation of hemicelluloses...
- Biofuels: Converting the biomasses.
Johnson, Russell // Nature Chemistry; Jan2013, Vol. 5 Issue 1, p5
The article discusses the conversion of waste biomass to biofuels which includes the separation of two chemical mixture such as cellulose and hemicelluloses.
- l-Arabinose metabolism in Candida arabinofermentans PYCC 5603T and Pichia guilliermondii PYCC 3012: influence of sugar and oxygen on product formation.
Fonseca, César; Spencer-Martins, Isabel; Hahn-Hägerdal, Bärbel // Applied Microbiology & Biotechnology; May2007, Vol. 75 Issue 2, p303
l-Arabinose utilization by the yeasts Candida arabinofermentans PYCC 5603T and Pichia guilliermondii PYCC 3012 was investigated in aerobic batch cultures and compared, under similar conditions, to d-glucose and d-xylose metabolism. At high aeration levels, only biomass was formed from all the...
- Fractionation of Corn Fiber Treated by Soaking in Aqueous Ammonia (SAA) for Isolation of Hemicellulose B and Production of C5 Sugars by Enzyme Hydrolysis.
Nghiem, Nhuan; Montanti, Justin; Johnston, David; Drapcho, Caye // Applied Biochemistry & Biotechnology; Sep2011, Vol. 164 Issue 8, p1390
process was developed to fractionate and isolate the hemicellulose B component of corn fiber generated by corn wet milling. The process consisted of pretreatment by soaking in aqueous ammonia followed by enzymatic cellulose hydrolysis, during which the hemicellulose B was solubilized by cleavage...
- A new approach about the digestion of fibers by ruminants.
Marmo MOREIRA, Leonardo; de Paula LEONEL, Fernando; Mendonça VIEIRA, Ricardo Augusto; PEREIRA, José Carlos // Revista Brasileira de SaÃºde e ProduÃ§Ã£o Animal (RBSPA); jul-set2013, Vol. 14 Issue 3, p382
The decisive role of metallic cations in the formation of supramolecular clusters involving lignin, cellulose, and hemi-cellulose and its relationship to energy losses in ruminants associated with fibrous feed resources is still not well understood. Indeed, interactions between lignin, cellulose...
- Oak wood hemicelluloses extracted with aqueous-alcoholic media.
Pisarnitskii, A.; Rubeniya, T.; Rutitskii, A. // Applied Biochemistry & Microbiology; Sep2006, Vol. 42 Issue 5, p514
Hemicellulose fractions were isolated from oak wood ethanol extracts (40ï¿½90%). To determine the composition of these fractions, they were hydrolyzed and the hydrolysis products in the form of trimethylsilyl derivatives were analyzed by GLC/MS. Depending on the content of the ethanol,...
- Effect of Oxygen Concentration on the Composting Process and Maturity.
Weidong Wang; Xiaofen Wang; Jianbin Liu; Masaharu Ishii; Yasuo Igarashi; Zongjun Cui // Compost Science & Utilization; Summer2007, Vol. 15 Issue 3, p184
The goal of this research was to investigate the effects of oxygen concentration on the composting process in China. The compost system was composed of cattle manure, chicken manure, and wheat straw combined at a ratio 1:3:6 for a period of 60 days. Microaerobic treatment was attained by manual...
- Isolation of a novel thermophilic fungus Chaetomium sp. nov. MS-017 and description of its palm-oil mill fiber-decomposing properties.
Suyanto; Ohtsuki, T.; Yazaki, S.; Ui, S.; Mimura, A. // Applied Microbiology & Biotechnology; Jan2003, Vol. 60 Issue 5, p581
Palm-oil mill fiber (POMF) is a fibrous, natural hard material discharged in enormous amounts from palm-oil mills in tropical plantations; therefore, research to find microorganisms that decompose POMF was conducted. As the result of screening, a new thermophilic fungus, Chaetomium sp. nov....
- Lamiaceae carbohydrates. 1. Pectinic substances and hemicelluloses from Mentha x piperita.
Olennikov, D. N.; Tankhaeva, L. M. // Chemistry of Natural Compounds; Sep2007, Vol. 43 Issue 5, p501
Pectinic substances from the aerial part of Mentha x piperita were isolated and characterized and found to be a mixture of ï¿½-(1?4)-glucogalactan (MPG) and two a-(1?4)-rhamnopolygalacturonans (MPP'-1 and MPP'-2). It was shown that the pectin and its components exhibited membrane-stabilizing,...
- Isolation and Characterization of a Cold-Active Xylanase Enzyme from Flavobacterium sp.
Lee, Charles C.; Smith, Michael; Kibblewhite-Accinelli, Rena E.; Williams, Tina G.; Wagschal, Kurt; Robertson, George H.; Wong, Dominic W. S. // Current Microbiology; Feb2006, Vol. 52 Issue 2, p112
Xylan is the major component of hemicellulose, and xylan should be fully utilized to improve the efficiencies of a biobased economy. There are a variety of industrial reaction conditions in which an active xylanase enzyme would be desired. As a result, xylanase enzymes with different activity...
- Pretreatment of Corn Stover Silage with Fe(NO) for Fermentable Sugar Production.
Youshan Sun; Xuebin Lu; Rui Zhang; Xinying Wang; Shuting Zhang // Applied Biochemistry & Biotechnology; Aug2011, Vol. 164 Issue 6, p918
Corn stover silage is an attractive raw material for the production of biofuels and chemicals due to its high content of carbohydrates and easy degradability. The effects of Fe(NO) pretreatment conditions on sugar yields were investigated for corn stover silage. In addition, a combined severity...
- An Alternative Application to the Portuguese Agro-Industrial Residue: Wheat Straw.
Denise Ruzene; Daniel Silva; António Vicente; Adilson Gonçalves; José Teixeira // Applied Biochemistry & Biotechnology; Mar2008, Vol. 147 Issue 1-3, p85
AbstractÂ Â The effects of alkaline treatments of the wheat straw with sodium hydroxide were investigated. The optimal condition for extraction of hemicelluloses was found to be with 0.50Â mol/l sodium hydroxide at 55Â Â°C for 2Â h. This resulted in the release of 17.3% of...
- Turning polysaccharides into hydrophobic materials: a critical review. Part 2. Hemicelluloses, chitin/chitosan, starch, pectin and alginates.
Cunha, Ana Gisela; Gandini, Alessandro // Cellulose; Dec2010, Vol. 17 Issue 6, p1045
This survey constitutes the second part of a comprehensive review, whose purpose is to provide a reasoned perspective on the field related to the preparation of new polysaccharide-based hydrophobic materials by scrutinizing the actual state of its art. After dealing with the major topic of...
- The Binding of Cholic Acid by Hemicellulose and Pectin of Yard-Long Bean [Vigna sesquipedalis (L.) Fruhw].
Yuanita, L.; Suyono; Sanjaya, I. G. M. // Journal of Food Science & Engineering; 2011, Vol. 1 Issue 5, p348
The aim of the study was to describe the binding of cholic acid by hemicellulose and pectin of yard-long bean at gastrointestinal system (in vitro), through variation of acidity (pH 3, 5 and 7) and boiling time (raw/0, 5, 20 and 35 minutes) of yard-long bean. Two-way Anova (a = 5%) and...
- AXY3 encodes a a-xylosidase that impacts the structure and accessibility of the hemicellulose xyloglucan in Arabidopsis plant cell walls.
G�nl, Markus; Pauly, Markus // Planta; Apr2011, Vol. 233 Issue 4, p707
Xyloglucan is the most abundant hemicellulose in the walls of dicots such as Arabidopsis. It is part of the load-bearing structure of a plant cell and its metabolism is thought to play a major role in cell elongation. However, the molecular mechanism by which xyloglucan carries out this and...
- Alternative Value Chains for Biomass Conversion to Chemicals.
Gallezot, Pierre // Topics in Catalysis; Sep2010, Vol. 53 Issue 15-18, p1209
Whereas biomass conversion is widely envisioned to proceed via platform molecules that are employed as building blocks to produce chemicals, an alternative value chain is proposed that proceeds via more direct and cost effective routes and do not duplicate chemicals currently produced from...
- Pyrolysis of wheat straw in a thermogravimetric analyzer: Effect of particle size and heating rate on devolatilization and estimation of global kinetics.
Mani, Thilakavathi; Murugan, Pulikesi; Abedi, Jalal; Mahinpey, Nader // Chemical Engineering Research & Design: Transactions of the Inst; Aug2010, Vol. 88 Issue 8, p952
The influence of different parameters such as particle size, initial weight of the sample, and heating rate on the devolatilization of wheat straw particles have been studied using thermogravimetric analysis. In addition, the variations in proximate analysis with different particle sizes of...
- Acid hydrolysis of olive tree biomass.
Romero, I.; Ruiz, E.; Castro, E.; Moya, M. // Chemical Engineering Research & Design: Transactions of the Inst; May/Jun2010, Vol. 88 Issue 5/6, p633
Olive tree cultivation generates a great amount of biomass residues which have no industrial application. Pruning residues are usually grindered or burnt on fields, causing economical costs and environmental concerns. An alternative issue for these renewable sugar-containing feedstocks may be...
- Routes to Potential Bioproducts from Lignocellulosic Biomass Lignin and Hemicelluloses.
Zhang, Xiao; Tu, Maobing; Paice, Michael // BioEnergy Research; Dec2011, Vol. 4 Issue 4, p246
An essential feature of proposed fermentation-based lignocellulose to biofuel conversion processes will be the co-production of higher value chemicals from lignin and hemicellulose components. Over the years, many routes for chemical conversion of lignin and hemicelluloses have been developed by...
- Xyloglucan: The Molecular Muscle of Trees.
Mellerowicz, Ewa J.; Immerzeel, Peter; Hayashi, Takahisa // Annals of Botany; Nov2008, Vol. 102 Issue 5, p659
Background: Tension wood evolved in woody angiosperms to allow stems with secondary thickening to bend and thus maintain an optimal orientation. Stem bending is the result of longitudinal tensile stress that develops in tension wood tissues. In many species, a specialized secondary cell wall...
- The Effects of Crude Oil Boiling Treatment on Physical Properties of Bambusa vulgaris var. Striata (Buluh Gading).
Izran, K.; Razak, W.; Zaidon, A.; Abood, F.; Norhisham, A. R. // Pertanika Journal of Tropical Agricultural Science; Nov2012, Vol. 35 Issue 4, p823
Bamboo is a material formed from organic components such as cellulose, hemicellulose and lignin. It is often attacked by biodegradation agents due to the presence of the organic components which affect the physical properties and durability of the bamboo, hence limiting its utilization as an...
- UNDERSTANDING THE LIMITATIONS OF REMOVAL OF HEMICELLULOSES DURING AUTOHYDROLYSIS OF A MIXTURE OF SOUTHERN HARDWOODS.
Tunc, Mehmet Sefik; Lawoko, Martin; van Heiningen, Adriaan // BioResources; 2010, Vol. 5 Issue 1, p356
Extraction of hemicelluloses from wood prior to pulping is being pursued to generate more value-added products, while still producing high quality pulp from the pre-extracted wood. For a better understanding of the factors limiting selective extraction, enzymatic hydrolysis in combination with...
- HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION.
Junping Zhuang; Ying Liu; Zhen Wu; Yong Sun; Lu Lin // BioResources; 2009, Vol. 4 Issue 2, p674
Xylitol can be obtained from wheat straw hemicellulose containing a high content of xylan. This study describes a new system of hydrolysis, utilizing a mixed solution of formic acid and hydrochloric acid in which xylan can be hydrolyzed effectively. The hydrolysate contains a high content of...
- Hybrid thermochemical/biological processing.
Robert Brown // Applied Biochemistry & Biotechnology; Mar2007, Vol. 137 Issue 1-12, p947
AbstractÃ‚Â Ã‚Â The conventional view of biorefineries is that lignocellulosic plant material will be fractionated into cellulose, hemicellulose, lignin, and terpenes before these components are biochemically converted into market products. Occasionally, these plants include a...
- Stimulatory Effect of Different Lignocellulosic Materials for Phenolic Compound Production and Antioxidant Activity from Inonotus obliquus in Submerged Fermentation.
Zhu, Linghui; Xu, Xiangqun // Applied Biochemistry & Biotechnology; Apr2013, Vol. 169 Issue 7, p2138
White-rot fungus Inonotus obliquus grown in submerged culture produces antioxidative phenolic compounds. In this study, addition of lignocellulosic materials into the liquid culture increased the production and antioxidant activity of extra- and intra-cellular phenolic compounds (EPC and IPC,...
- Application of Pigeon Pea ( Cajanus cajan) Stalks as Raw Material for Xylooligosaccharides Production.
Samanta, A.; Jayapal, Natasha; Kolte, A.; Senani, S.; Sridhar, Manpal; Mishra, Sukriti; Prasad, C.; Suresh, K. // Applied Biochemistry & Biotechnology; Apr2013, Vol. 169 Issue 8, p2392
Pigeon pea ( Cajanus cajan) is a perennial plant widely cultivated in tropical and subtropical regions of many countries. The present studies aimed to produce xylooligosaccharides (XOS) from pigeon pea stalks in order to do value addition. The chemical analysis of stalks revealed 18.33 Â± 1.40...
- Characterization of sugarcane and coconut fibers by thermal analysis and FTIR.
Mothé, Cheila G.; Miranda, Iara C. de. // Journal of Thermal Analysis & Calorimetry; Aug2009, Vol. 97 Issue 2, p661
Pyrolysis of sugarcane bagasse and coconut fiber was studied by thermal analysis in order to characterize their thermal behavior and to identify their constituents by the aid of their thermogravimetric curves and to determine their heat capacity by means of DSC. The Fourier Transform Infrared...
- Physical and Chemical Properties of Wet Processed Hemp and Kenaf.
Jinhua Wang; Ramaswamy, Gita N. // AATCC Review; Jan2005, Vol. 5 Issue 1, p22
Both kenaf and hemp fibers were studied chemically and physically. Treatments included alkali processing, hydrogen peroxide bleaching, and a combination of both processes. Lignin and hemicellulose contents, fiber bundle tenacity, elongation, and moisture regain were evaluated before and after...
- Production, bleaching, and characterization of pulp from Stipa tenacissima.
Ammar, Houcine; Abdelkafi, Fatma; Abid, Souhir; Benjelloum-Mlayah, Bouchra; Gharbi, Rachid; Delmas, Michel // Chemistry of Natural Compounds; Mar2012, Vol. 48 Issue 1, p99
Alfa grass pulping was successfully performed in hydro-organic acid medium under mild conditions (107Â°C, atmospheric pressure, cooking time: 3 h). Use of an acetic acid/formic acid/water mixture as pulping liquor was perfectly suitable for selective isolation of pulp, lignin, and...
- Effects of pH, Temperature, Enzyme and Substrate Concentration on Xylooligosaccharides Production.
Siti-Normah, M. D. S.; Sabiha-Hanim, S.; Noraishah, A. // World Academy of Science, Engineering & Technology; 2012, Issue 72, p1509
Agricultural residue such as oil palm fronds (OPF) is cheap, widespread and available throughout the year. Hemicelluloses extracted from OPF can be hydrolyzed to their monomers and used in production of xylooligosaccharides (XOs). The objective of the present study was to optimize the enzymatic...
- SKIRTINGÅ² RÅªÅ IÅ² SILOSO KOKYBÄ–S IR LÄ„STELIENOS KOMPONENTÅ² KAITA.
Siti-Normah, M. D. S.; Sabiha-Hanim, S.; Noraishah, A. // Veterinarija ir Zootechnika; 2010, Vol. 51 Issue 73, p8
No abstract available.
- Stastical Optimization Of Process Variables For Corncob Hemicellulose Hydrolysate To Xylitol By Debaryomyces hansenii var hanseii.
S. Ramesh; R. Muthuvelayudham; R. Rajesh Kannan; T. Viruthagiri // International Journal of ChemTech Research; Jan-Mar2013, Vol. 5 Issue 1, p186
This study deals with the optimization of the process variables in Xylitol production by Debrayomyces hansenii var hansenii (MTTC 3034) using corncob hemicellulosic hydrolysate obtained by acid hydrolysis. The influence of various process variables namely temperature, pH, substrate...