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1. Optimization of an ethanol production medium in very high gravity fermentation

Author:
Gao, Cui-Juan,   et al.   ; Wang, Fan-Qiang; Yang, Chun-Yu; Xu, Ping;     Show all 4 Authors
Source:
Biotechnology letters 2007 v.29 no.2 pp. 233-236
ISSN:
0141-5492
Subject:
Saccharomyces cerevisiae; acetaldehyde; biotin; ethanol; ethanol production; fermentation; magnesium; mathematical models; peptones; process design; regression analysis; yeast extract
Abstract:
... Concentrations of Mg²⁺, glycine, yeast extract, biotin, acetaldehyde and peptone were optimized by a uniform design process for ethanol production by Saccharomyces cerevisiae. Using non-linear step-wise regression analysis, a predictive mathematical model was established. Concentrations of Mg²⁺ and peptone were identified as the critical factors: 50 mM Mg²⁺ and 1.5% (w/v) peptone in the medium inc ...
DOI:
10.1007/s10529-006-9220-6
PubMed:
17091376