INVERTASE ACTIVITY OF INTACT YEAST-CELLS HARVESTED FROM FED-BATCH ETHANOL FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES

被引：7
作者：
VITOLO, M
CARVALHO, JCM
DURANTI, MA
BREDA, M
机构：
[1] Faculdade de Ciências Farmacêuticas, University of São Paulo, 05389 Sao Paulo, SP
来源：
BIOMASS & BIOENERGY | 1991年 / 1卷 / 05期
关键词：
INVERTASE; YEAST; FED-BATCH ETHANOL FERMENTATION; SUGAR CANE MOLASSES; SACCHAROMYCES-CEREVISIAE;
D O I：
10.1016/0961-9534(91)90043-C
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The invertase activity (v) and ethanol production rate (E) were measured during the fed-batch culture of yeast on sugar cane blackstrap molasses under different feeding rates, which were calculated by equation: F = F0.e(-Kt) (the fermentor filling-up-time was equal to 7 h). The highest total invertase activity (41900 U) and ethanol production rate (76.6 g/h) were obtained when the mash was added into the reactor following a exponentially decreasing feeding rate at K = 0.6 h-1 (F0 = 4.31/h).
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页码：301 / 304
页数：4
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