Extracellular cellulolytic complexes production by microscopic fungi
The aim of this work was to screen and to study the effect of inducers on the synthesis of the cellulolytic enzyme complexes by microscopic fungi. Cellulolytic and xylanolytic activities were determined by reducing sugar with DNS reagent, and B-glucosidase activity by pNPG hydrolysis. The enzyme pre...
Saved in:
Published in | Biotechnologia acta Vol. 8; no. 5; pp. 78 - 85 |
---|---|
Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Kyiv
Palladin Institute of Biochemistry of National Academy of Sciences of Ukraine
01.01.2015
National Academy of Sciences of Ukraine, Palladin Institute of Biochemistry |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The aim of this work was to screen and to study the effect of inducers on the synthesis of the cellulolytic enzyme complexes by microscopic fungi. Cellulolytic and xylanolytic activities were determined by reducing sugar with DNS reagent, and B-glucosidase activity by pNPG hydrolysis. The enzyme preparations were obtained by ammonium sulphate precipitation. Among 32 studied strains of microscopic fungi 14 produced cellulo- and xylanolytic enzyme complexes. Fusarium sp. 5 and Fennellia sp. 2806 demonstrated the highest levels of all studied enzyme activities. Enzyme preparations with high endo-, exoglucanase, xylanase and B-glucosidase activities were obtained from these strains. Fusarium sp. 5 and Fennellia sp. 2806 were active producers of cellulase enzyme complexes during growth on natural substrates. It was shown that inductors of cellulolytic enzymes in Fusarium sp. 5 and Fennellia sp. 2806 differed from the ones in Trichoderma reesei. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2410-7751 1995-5537 2410-776X |
DOI: | 10.15407/biotech8.05.078 |