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.
Curling, Simon F.; Clausen, Carol A.; Winandy, Jerrold E. // 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...
- 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...
- 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.
- 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...
- 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...
- 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...
- 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...
- Kinetic modelling of the pyrolysis of Miscanthus Ã— Giganteus from the thermogravimetric analysis of its fractionated components.
Collura, Salvatore; Azambre, Bruno; Weber, Jean-Victor // Environmental Chemistry Letters; Dec2005, Vol. 3 Issue 3, p95
In this paper the thermal behaviour of Miscanthus Ã— Giganteus (MÃ—G) is studied by thermogravimetric analysis. In order to characterise the thermal behaviour of its cellulose, hemicellulose and lignin, the raw MÃ—G material was treated sequentially by water, H2SO4 and KOH. The global...
- 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 Î²- D-xylopyranosyl units linked by (1â€“4) glycosidic bonds. In nature, the polysaccharide backbone may be added to 4- O-methyl-Î±- D-glucuronopyranosyl units, acetyl groups, Î±- L-arabinofuranosyl, etc., in...
- 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.
- Production of xylooligosaccharides from enzymatic hydrolysis of xylan by white-rot fungi Pleurotus.
de Menezes, Cristiano Ragagnin; Silva, Ísis Serrano; Pavarina, Érika Cristina; de Faria, Andréia Fonseca; Elisângela Franciscon; Durrant, Lucia Regina // Acta Scientiarum: Technology; Jan-Mar2010, Vol. 32 Issue 1, p37
Hemicellulose consists of non-cellulosic polysaccharides, with xylans and mannans as their main examples. In nature, xylan can be first degraded to xylooligosaccharides and finally to xylose by certain microorganisms. White-rot fungi basidiomycetes Pleurotus sp. BCCB068 and Pleurotus tailandia...
- Improving enzymatic hydrolysis of thermo-mechanical fiber from Eucalyptus urophylla by combination of hydrothermal pretreatment and alkali fractionation.
Shaoni Sun; Xuefei Cao; Shaolong Sun; Feng Xu; Xianliang Song; Run-Cang Sun; Gwynn Jones // Biotechnology for Biofuels; 2014, Vol. 7 Issue 1, p1
Background The recalcitrance of lignocellulosic biomass is a major limitation for its conversion into biofuels by enzymatic hydrolysis. The use of a pretreatment technology is an essential step to diminish biomass recalcitrance for bioethanol production. In this study, a two-step pretreatment...
- Development and Characterization of an Environmentally Friendly Process Sequence (Autohydrolysis and Organosolv) for Wheat Straw Delignification.
Ruiz, Héctor A.; Ruzene, Denise S.; Silva, Daniel P.; Macieira da Silva, Fernando F.; Vicente, António A.; Teixeira, José 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 180Â°C during 30 min with a liquid-solid ratio of 10 ( v/ w);...
- 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...
- 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...
- 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...
- 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...
- 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...
- 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 Rapid and Simple Method for Preparing an Insoluble Substrate for Screening of Microbial Xylanase.
Ko, Kyong-Cheol; Han, Yunjon; Shin, Bong; Choi, Jong; Song, Jae // Applied Biochemistry & Biotechnology; Jun2012, Vol. 167 Issue 4, p677
Several types of enzymes, including cellulases and xylanases, are required to degrade hemicelluloses and cellulose, which are major components of lignocellulosic biomass. Such degradative processes can be used to produce various useful industrial biomaterials. Screening methods for detecting...
- 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 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...
- 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...
- 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...
- 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...
- 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...
- 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...
- Loosening xyloglucan prevents tensile stress in tree stem bending but accelerates the enzymatic degradation of cellulose.
Hayashi, T.; Kaida, R.; Kaku, T.; Baba, K. // Russian Journal of Plant Physiology; May2010, Vol. 57 Issue 3, p316
In response to environmental variation, xyloglucan could fix the microfibrils to the inner surface of the wall to withstand the tensile stress generated within the G-layer. This would explain why the basal regions of stems of transgenic poplars overexpressing xyloglucanase could not bend upward....
- Metabolic study of the adaptation of the yeast Candida guilliermondii to sugarcane bagasse hydrolysate.
Sene, L.; Converti, A.; Zilli, M.; Felipe, M. G. A.; Silva, S. S. // Applied Microbiology & Biotechnology; Dec2001, Vol. 57 Issue 5/6, p738
Batch xylitol production from concentrated sugarcane bagasse hydrolysate by Candida guilliermondii was performed by progressively adapting the cells to the medium. Samples were analyzed to monitor sugar and acetic acid consumption, xylitol, arabitol, ethanol, and carbon dioxide production, as...
- Î±- l-Arabinofuranosidases: the potential applications in biotechnology.
Numan, Mondher Th.; Bhosle, Narayan // Journal of Industrial Microbiology & Biotechnology; Apr2006, Vol. 33 Issue 4, p247
Recently, Î±- l-arabinofuranosidases (EC22.214.171.124) have received increased attention primarily due to their role in the degradation of lignocelluloses as well as their positive effect on the activity of other enzymes acting on lignocelluloses. As a result, these enzymes are used in many...
- Carbohydrates from Curcuma longa.
Orlovskaya, T.; Chelombit?ko, V. // Chemistry of Natural Compounds; Jul2006, Vol. 42 Issue 4, p483
The article examines the content of turmeric polysaccharides from Curcumar longa, a perennial herbaceous plant of the Zingiberaceae family. The researchers used an air-dried ground rhizome from the plant cultivated in Morocco and polysaccharide fractions were isolated by working up ground raw...
- Thermal and Dimensional Stability of NBS-catalyzed Acetylated Rice Husks.
Nwankwere, E. T.; Omolaoye, J. A.; Nwadiogbu, J. O.; Nale, B. Y. // Der Chemica Sinica; 2011, Vol. 2 Issue 1, p189
Rice husks have been treated by acetylation for use as oil spill sorbents. The thermal and dimensional stabilities have been presented and discussed in this study. The thermal degradation studies were carried out within the temperature range of 26-600Â°C. Weight loss as a result of degradation...
- Acid-Functionalized Nanoparticles for Pretreatment of Wheat Straw.
Peña, Leidy; Ikenberry, Myles; Hohn, Keith L.; Donghai Wang // Journal of Biomaterials & Nanobiotechnology; Jul2012, Vol. 3 Issue 3, p342
Perfluoroalkylsulfonic (PFS) and alkylsulfonic (AS) acid-functionalized magnetic nanoparticles were synthesized, characterized, and then evaluated for their ability to hydrolyze hemicelluloses. The magnetic core was made of cobalt spinel ferrite and was coated with silica to protect it from...
- Garbage bug may lower biofuel costs.
Jongeneel, Susan // Western Farm Press Exclusive Insight; 11/29/2012, p9
The article discusses the possible use of garbage bug to lessen biofuel costs. It states that one of the reasons behind the high cost of making biofuels is that the organisms used to ferment the product fail to make efficient use of hemicellulose. According to the author, this trend causes the...
- 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....
- Improvements in ethanol production from xylose by mating recombinant xylose-fermenting Saccharomyces cerevisiae strains.
Kato, Hiroko; Suyama, Hiroaki; Yamada, Ryosuke; Hasunuma, Tomohisa; Kondo, Akihiko // Applied Microbiology & Biotechnology; Jun2012, Vol. 94 Issue 6, p1585
To improve the ability of recombinant Saccharomyces cerevisiae strains to utilize the hemicellulose components of lignocellulosic feedstocks, the efficiency of xylose conversion to ethanol needs to be increased. In the present study, xylose-fermenting, haploid, yeast cells of the opposite mating...
- Sugar cane bagasse as feedstock for second generation ethanol production. Part II: Hemicellulose hydrolysate fermentability.
Kato, Hiroko; Suyama, Hiroaki; Yamada, Ryosuke; Hasunuma, Tomohisa; Kondo, Akihiko // Electronic Journal of Biotechnology; 9/15/2010, Vol. 13 Issue 5, p1
No abstract available.
- PROPERTY CHARACTERIZATION OF Chusquea culeou, A BAMBOO GROWING IN CHILE.
Poblete, Hernán; Cuevas, Héctor; Diaz-Vaz, Juan E. // Maderas: Ciencia y TecnologÃa; 2009, Vol. 11 Issue 2, p129
Property characterization of Chusquea culeou Desv. (colihue), a bamboo growing in Chile, was conducted. Physical, chemical and mechanical properties were determined as a function of plant diameter, position in culm length and nodal or internodal sections. The results show that fibre length...
- Enhancement of total sugar and lignin yields through dissolution of poplar wood by hot water and dilute acid flowthrough pretreatment.
Lishi Yan; Libing Zhang; Bin Yang // Biotechnology for Biofuels; 2014, Vol. 7 Issue 1, p1
Background Pretreatment is a vital but expensive step in biomass biofuel production. Overall, most of this past effort has been directed at maximizing sugar yields from hemicellulose and cellulose through trials with different chemicals, operating conditions, and equipment configurations....
- Use of Xylanase and Rabinofuranosidase for Arabinose Removal from Unbleached Kraft Pulp.
Makkonen, H. P.; Nakas, J. P. // Biotechnology Letters; Nov2005, Vol. 27 Issue 21, p1675
Preparations of arabinofuranosidase and xylanase, respectively from Aureobasidium pullulans and Trichoderma longibrachiatum, were used to remove selectively xylose and arabinose from kraft pulp. The equilibrium moisture content of pulps treated with both enzymes, at varying relative humidities,...
- Carbohydrates from Lepidium sativum.
Orlovskaya, T. V.; Chelombit'ko, V. A. // Chemistry of Natural Compounds; May2007, Vol. 43 Issue 3, p306
The article investigates carbohydrates from the seeds of the Lepidium sativum. The monosaccharide composition of polysaccharides from L. sativum seeds are discussed. The results indicated that the carbohydrate components of the water-soluble polysaccharides (WSPS) and hemicellulose (HC)...
- 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 Î²-(1â†’4)-glucogalactan (MPG) and two Î±-(1â†’4)-rhamnopolygalacturonans (MPPâ€²-1 and MPPâ€²-2). It was shown that the pectin and its components...