Results 131 to 140 of about 4,260 (185)
Micellisation and gelation of block-copoly(oxyethylene/oxybutylene/oxyethylene) E58 B17 E58 [PDF]
Colloid & Polymer Science, 1992 A triblock-copoly(oxybutylene/oxyethylene), denoted E58 B17 E58 (80 wt-% E), was prepared by sequential anionic copolymerisation and its micellar and gelation properties in aqueous solution were determined. The oxybutylene/oxyethylene copolymer had the advantage over comparable oxypropylene/oxyethylene copolymers of greater uniformity of composition ...
Yun‐Zhu Luo +5 more
semanticscholar +3 more sources
Xylanase production by Trichoderma harzianum E58
Applied Microbiology and Biotechnology, 1989 Growth of Trichoderma harzianum E58 on hemicellulose-rich media, both in batch and fermentor cultures, resulted in independent profiles for the production of xylanase and endoglucanase enzymes. Dramatic differences in the ratio of xylanase to endoglucanase activities were observed among cultures grown on cellulose-rich Solka Floc and xylan.
D.J. Senior, Paul Mayers, J. N. Saddler
semanticscholar +4 more sources
Production of \-mannanases by Trichoderma harzianum E58
Applied Microbiology and Biotechnology, 1990 The extracellular mannanase and endoglucanase activities of Trichoderma harzianum E58 were followed during growth of the fungus on 1% (w/v) mannose, Avicel, locust bean gum, konjac powder or the water-soluble fraction from stream-treated white spruce (SWS). Peak galactomannanase activities of 0.60 IU/ml and 0.66 IU/ml were detected in culture filtrates
Joan P. Torrie +2 more
semanticscholar +4 more sources
Biotechnology Letters, 1982 Cellobiose and salicin were continuously hydrolysed in a packed bed reactor containing Trichoderma sp. E-58, encapsulated in calcium alginate beads. Continuous β-glucosidase activities were measured using inlet substrate concentrations of 10 mM and 35 mM for cellobiose and salicin respectively.
Paul P. Matteau, J. N. Saddler
semanticscholar +4 more sources
A comparison between the cellulase systems of Trichoderma harzianum E58 and Trichoderma reesei C30
Applied Microbiology and Biotechnology, 1985 Nearly all of the filter paper, endoglucanase and β-glucosidase activities of T. harzianum E58 were located extracellularly, with low amounts of these activities detected in the cell extracts and relatively little associated with the cell wall. Most of the filter paper and endoglucanase activities of T. reesei C30 were detected extracellularly.
J. N. Saddler +2 more
semanticscholar +4 more sources
Influence of growth substrate on production of cellulase enzymes by Trichoderma harzianum E58
Biotechnology and Bioengineering, 1988 AbstractCellulase production by Trichoderma harzianum E58 grown on lactose and various cellulosic substrates such as Solka Floe, Avicel, and steamed aspenwood was investigated. The culture filtrates of T. harzianum E58 obtained after growth on these substrates were assayed for their cellulase activities and overall hydrolytic activities.
M. Mes‐Hartree +2 more
semanticscholar +5 more sources
Extracellular beta-D-mannanase activity from Trichoderma harzianum E58.
, 1991 In this work, 4 yeasts (Pichia wickerhammi, Candida wickerhammi, Pichia stipitis CBS5776, Pichia stipitis CBS5876), and 5 fungi (Theivalia spp., Thermoascus aurantiacus, Tyromyces palustris A, Aspergillus niger, Trichoderma harzianum), known to excrete enzymes capable of hydrolyzing polysaccharides found in association with $\beta$-D-mannans, were ...
Joan P. Torrie
semanticscholar +5 more sources