XYLANOLYTIC ACTIVITY AND XYLOSE UTILIZATION BY THERMOPHILIC MOLDS

Citation
S. Banerjee et al., XYLANOLYTIC ACTIVITY AND XYLOSE UTILIZATION BY THERMOPHILIC MOLDS, Folia microbiologica, 40(3), 1995, pp. 279-282
Citations number
34
Categorie Soggetti
Microbiology,"Biothechnology & Applied Migrobiology
Journal title
ISSN journal
00155632
Volume
40
Issue
3
Year of publication
1995
Pages
279 - 282
Database
ISI
SICI code
0015-5632(1995)40:3<279:XAAXUB>2.0.ZU;2-G
Abstract
Among thirteen thermophilic fungal strains, viz. Mabranchea pulchella var. sulfurea, Sporotrichum thermophile, Thielavia terrestris, Humicol a insolens and Acremonium alabamensis produced high levels of xylanoly tic enzymes. The secretion of xylanolytic enzymes was higher in wheat straw medium than in wheat straw hemicellulose. All fungi utilized xyl ose as the carbon source. However, Mucor pusillus, Torula thermophila and Sporotrichum thermophile consumed 90 - 93 % of xylose provided in the medium while others utilized 51-83 %. The consumption of glucose b y the fungi was high in comparison with that of xylose. Of all the tre atments tried, xylose isomerase yield was highest when the mycelium of Humicola insolens was homogenized with sand. The synthesis of xylose isomerase was very high in wheat straw hemicellulose as compared with that in xylose and glucose.