نتایج جستجو برای: cellulase and α

تعداد نتایج: 16861874  

2014
Li Wan Yoon Teck Nam Ang Gek Cheng Ngoh Adeline Seak May Chua

Cellulase serves vast applications in the industries of biofuel, pulp and paper, detergent and textile. With the presence of its three components i.e. endoglucanase, exoglucanase and bglucosidase, the enzyme can effectively depolymerize the cellulose chains in lignocellulosic substrate to produce smaller sugar units that consist of cellobiose and glucose. Fungi are the most suitable cellulase p...

2011
S. Anuradha Jabasingh C. Valli Nachiyar

The present study deals with the immobilization of Aspergillus nidulans cellulase onto modified chitin (MC). The effect of contact time, cellulase concentration, MC dosage, temperature and agitation rate for maximum immobilization percentage and immobilization capacity is investigated on the basis of five-level-five-factor central composite design (CCD) obtained by response surface methodology ...

2015
Chetna Gupta Priyanka Jain Dhermander Kumar A. K. Dixit R. K. Jain

Article Type: Full Length Research Article This research highlighted the production of cellulase enzyme from isolated fungal strains and used this enzyme as potential refining agent in manufacturing security paper from cotton comber pulp. Twenty three fungal strains were isolated from soil samples collected from nearby wood based paper mill and screened for cellulolytic activity by Congo red pl...

Journal: :Applied and environmental microbiology 2012
André Schuster Doris Tisch Verena Seidl-Seiboth Christian P Kubicek Monika Schmoll

The cyclic AMP (cAMP) pathway represents a central signaling cascade with crucial functions in all organisms. Previous studies of Trichoderma reesei (anamorph of Hypocrea jecorina) suggested a function of cAMP signaling in regulation of cellulase gene expression. We were therefore interested in how the crucial components of this pathway, adenylate cyclase (ACY1) and cAMP-dependent protein kinas...

Journal: :Plant physiology 1994
E C Kemmerer M L Tucker

Cellulase activity was measured in soybean (Glycine max) leaf abscission zones, flower abscission zones, pod abscission zones, apical buds, and adventitious rooting hypocotyls. Immunoprecipitation data showed that a cellulase immunologically similar to the bean abscission cellulase (isoelectric point 9.5) is present in soybean leaf, flower, and pod abscission zones, but is not present in soybea...

2013
Zheng-Jian Zhang Yun-Zhi Chen Hui-Ren Hu

Bleached simao pine kraft pulp was treated with Aspergillus niger crude cellulase produced by submerged fermentation using the pulp as the carbon source. The effects of the cellulase on the pulp beatability and mechanical properties were studied. Fourier transform infrared spectroscopy (FT-IR) was performed to study the effect of cellulase treatment on the cellulose crystallinity index. The fib...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1389

چکیده توان بالقوه تجاری سلولازها و کاربردهای گوناگون آن ها در بسیاری از صنایع انگیزه ای قوی برای تحقیق در این زمینه طی چند دهه گذشته بوده است. با توجه به کاربردهای فراوان این آنزیم در صنایع غذایی? در این پژوهش تصمیم به جداسازی ریزسازواره های تولید کننده سلولاز از خاک درختان انار، انگور، خرمالو و گردو حیاط دانشکده کشاورزی تربیت مدرس، گرفته شد. در این بین خاک درخت خرمالو به دلیل دارا بودن تعداد ...

A. Mohamadi S. Shahbazi,

Six strain of Trichoderma (T. viride, T. harzianum, T. reesei, T. longibrachiatum, T. koningii, T. virens) were isolated and used for extracellular enzyme production. Species of Trichoderma are collected from the surrounding soil of suger beet root fields in East Iran, and held in vitro cultured PDA. TCM and TFM are used for the growth of spores and induceing the production of Cellulase. Finall...

Journal: :Bioresource technology 2009
Rajeev Kumar Charles E Wyman

Solids resulting from pretreatment of corn stover by ammonia fiber expansion (AFEX), ammonia recycled percolation (ARP), controlled pH, dilute acid, lime, and sulfur dioxide (SO(2)) technologies were hydrolyzed by enzyme cocktails based on cellulase supplemented with beta-glucosidase at an activity ratio of 1:2, respectively, and augmented with up to 11.0 g xylanase protein/g cellulase protein ...

2017
Muinat Olanike Kazeem Umi Kalsom Md Shah Azhari Samsu Baharuddin Nor’ Aini AbdulRahman

Bacteria isolated from thermophilic environment that can produce cellulase as well as utilise agro-waste biomass have a high potential for developing thermostable cellulase required in the biofuel industry. The cost for cellulase represents a significant challenge in converting lignocellulose to fermentable sugars for biofuel production. Among three potential bacteria examined, Bacillus licheni...

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