نتایج جستجو برای: hemicellulose

تعداد نتایج: 2450  

2013
Hong-Qiang Li Cheng-Lan Li Tao Sang Jian Xu

BACKGROUND The C4 perennial grass Miscanthus giganteus has proved to be a promising bio-energy crop. However, the biomass recalcitrance is a major challenge in biofuel production. Effective pretreatment is necessary for achieving a high efficiency in converting the crop to fermentable sugars, and subsequently biofuels and other valued products. RESULTS Miscanthus lutarioriparious was pretreat...

Journal: :Plant physiology 1996
R Tenhaken O Thulke

Hemicellulose is a major component of primary plant cell walls. Many of the glycosyl residues found in hemicellulose are derived from the sugar precursor UDP-glucuronic acid, which can be converted into UDP-arabinose, UDP-apiose, UDP-galacturonic acid, and UDP-xylose. The enzyme controlling the biosynthesis of UDP-glucuronic acid, UDP-glucose dehydrogenase (EC 1.1.1.22), was cloned from soybean...

Journal: :The Plant cell 2013
Delphine Gendre Heather E McFarlane Errin Johnson Gregory Mouille Andreas Sjödin Jaesung Oh Gabriel Levesque-Tremblay Yoichiro Watanabe Lacey Samuels Rishikesh P Bhalerao

The secretion of cell wall polysaccharides through the trans-Golgi network (TGN) is required for plant cell elongation. However, the components mediating the post-Golgi secretion of pectin and hemicellulose, the two major cell wall polysaccharides, are largely unknown. We identified evolutionarily conserved YPT/RAB GTPase Interacting Protein 4a (YIP4a) and YIP4b (formerly YIP2), which form a TG...

Journal: :The Biochemical journal 1977
G Dalessandro D H Northcote

During the transition from primary wall formation to secondary thickening there is a marked shift in the synthesis of pectin, hemicellulose and cellulose. The activities of the enzymes [UDP-D-galactose 4-epimerase (EC 5.1.3.2)8 UDP-l-arabinose 4-epimerase (EC 5.1.3.5), UDP-D-glucose dehydrogenase (EC 1.1.1.22) and UDP-D--glucuronate decarboxylase (EC 4.1.1.35)] were measured in cambial cells, d...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Gregory Bokinsky Pamela P Peralta-Yahya Anthe George Bradley M Holmes Eric J Steen Jeffrey Dietrich Taek Soon Lee Danielle Tullman-Ercek Christopher A Voigt Blake A Simmons Jay D Keasling

One approach to reducing the costs of advanced biofuel production from cellulosic biomass is to engineer a single microorganism to both digest plant biomass and produce hydrocarbons that have the properties of petrochemical fuels. Such an organism would require pathways for hydrocarbon production and the capacity to secrete sufficient enzymes to efficiently hydrolyze cellulose and hemicellulose...

2015
Han Wang Hai Lin Nai Tran-Dinh Dongmei Li Paul Greenfield David J. Midgley

The draft genome sequence of Ruminoclostridium sp. Ne3 was reconstructed from the metagenome of a hydrogenogenic microbial consortium growing on xylan. The organism is likely the primary hemicellulose degrader within the consortium.

2009
Mats Galbe Gunnar Lidén Guido Zacchi

Ethanol produced from various lignocellulosic materials such as wood, agricultural and forest residues has the potential to be a valuable substitute for, or complement to, gasoline. This paper reviews the research activities in Sweden on development of the technology for ethanol production from lignocellulosics. The paper focuses on hemicellulose and cellulose hydrolysis and fermentation as wel...

2016
Juliana Moço Corrêa Divair Christi Carla Lieko Della Torre Caroline Henn José Luis da Conceição-Silva Marina Kimiko Kadowaki Rita de Cássia Garcia Simão

A new strain of Thermomyces lanuginosus was isolated from the Atlantic Forest biome, and its β-xylosidases optimization in response to agro-industrial residues was performed. Using statistical approach as a strategy for optimization, the induction of β-xylosidases activity was evaluated in residual corn straw, and improved so that the optimum condition achieved high β-xylosidases activities 100...

Journal: :Bioresource technology 2005
Nathan Mosier Charles Wyman Bruce Dale Richard Elander Y Y Lee Mark Holtzapple Michael Ladisch

Cellulosic plant material represents an as-of-yet untapped source of fermentable sugars for significant industrial use. Many physio-chemical structural and compositional factors hinder the enzymatic digestibility of cellulose present in lignocellulosic biomass. The goal of any pretreatment technology is to alter or remove structural and compositional impediments to hydrolysis in order to improv...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید