TOXICITY OF HARDWOOD EXTRACTIVES TOWARD SACCHAROMYCES-CEREVISIAE GLUCOSE FERMENTATION

Citation
Td. Ranatunga et al., TOXICITY OF HARDWOOD EXTRACTIVES TOWARD SACCHAROMYCES-CEREVISIAE GLUCOSE FERMENTATION, Biotechnology letters, 19(11), 1997, pp. 1125-1127
Citations number
8
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
ISSN journal
01415492
Volume
19
Issue
11
Year of publication
1997
Pages
1125 - 1127
Database
ISI
SICI code
0141-5492(1997)19:11<1125:TOHETS>2.0.ZU;2-D
Abstract
The toxicity of oak and yellow-poplar wood extracts, as well as a firs t-stage hardwood hydrolyzate liquor prepared from a red oak:white oak: yellow-poplar (1:1:1) sawdust, on Saccharomyces cerevisiae D5A was exa mined. Acetone/water and hot methanol extracts of solid biomass sample s from white oak, red oak, and yellow-poplar gave 88-94% of the ethano l produced with controls. The organism was tolerant to the compounds p resent in the xylose-rich hydrolyzate, with fermentation efficiency be ing improved to 97% of that obtained with controls by using an overlim ing/thermal conditioning protocol.