Converting crude glycerol derived from yellow grease to lipids through yeast fermentation

被引：162

作者：

Liang, Yanna ^{[1
]}

Cui, Yi ^{[1
]}

Trushenski, Jesse ^{[2
]}

Blackburn, James W. ^{[3
]}

机构：

[1] So Illinois Univ, Dept Civil & Environm Engn, Carbondale, IL 62901 USA

[2] So Illinois Univ, Dept Zool, Fisheries & Illinois Aquaculture Ctr, Carbondale, IL 62901 USA

[3] So Illinois Univ, Dept Mech Engn & Energy Proc, Carbondale, IL 62901 USA

来源：

BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 19期

关键词：

Crude glycerol; Lipids; Cryptococcus curvatus; Fed-batch; Biodiesel; BIODIESEL PRODUCTION; MICROALGAL FERMENTATION; KLEBSIELLA-PNEUMONIAE; DOCOSAHEXAENOIC ACID; MICROBIAL-PRODUCTION; OLEAGINOUS YEAST; WHEY-PERMEATE; BATCH CULTURE; 1,3-PROPANEDIOL; STAGE;

D O I：

10.1016/j.biortech.2010.04.061

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Cryptococcus curvatus. an oleaginous yeast was observed to grow on crude glycerol derived from yellow grease. When cultured in a one-stage fed-batch process wherein crude glycerol and nitrogen source were fed intermittently for 12 days, the final biomass density and lipid content were 31.2 g/l and 44.2%, respectively. When cultured in a two-stage fed-batch operation wherein crude glycerol was supplemented at different time points while nitrogen source addition was discontinued at the middle of the experiment, the biomass density was 32.9 g/l and the lipid content was 52% at the end of 12 days. Compared with other oil feedstocks for biodiesel production, lipid accumulated by C. curvatus grown on glycerol has high concentration of monounsaturated fatty acid, which makes it an excellent source for biodiesel use. Published by Elsevier Ltd.

引用

页码：7581 / 7586

页数：6

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