Lipid production in the under-characterized oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, from biodiesel-derived waste glycerol

被引：82
|
作者：
Munch, Garret [1 ]
Sestric, Ryan [1 ]
Sparling, Richard [2 ]
Levin, David B. [1 ]
Cicek, Nazim [1 ]
机构：
[1] Univ Manitoba, Dept Biosyst Engn, Winnipeg, MB R3T 2N2, Canada
[2] Univ Manitoba, Dept Microbiol, Winnipeg, MB R3T 2N2, Canada
来源：
BIORESOURCE TECHNOLOGY | 2015年 / 185卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Rhodosporidium; Oleaginous yeasts; Single-cell oil; Biodiesel; Biodiesel-derived waste glycerol; FATTY-ACID-COMPOSITION; YARROWIA-LIPOLYTICA; RAW GLYCEROL; CITRIC-ACID; CULTIVATION; TORULOIDES; GROWTH; WATER;
D O I：
10.1016/j.biortech.2015.02.051
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The growth, lipid production, and carbon use efficiency of two oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, were compared under nitrogen-limiting conditions with glycerol as the carbon source. Final biomass concentrations of R. babjevae and R. diobovatum were 9.4 +/- 0.80 g/L and 12.0 +/- 0.82 g/L, respectively, after 120 h of growth. Final lipid accumulation in for R. babjevae and R. diobovatum were 34.9 +/- 3.0% cell dry weight (cdw) and 63.7 +/- 4.5% cdw, respectively. Biomass production increased to 9.9 +/- 0.2 g/L for R. babjevae and 14.1 +/- 0.2 g/L for R. diobovatum in medium containing biodiesel-derived waste glycerol, but lipid accumulation decreased in both species. In a 7 L bioreactor with biodiesel-derived glycerol as carbon source, R. diobovatum produced 13.6 +/- 0.4 g/L biomass and accumulated lipids to 50.7 +/- 2.2% cdw, matching flask experiments. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：49 / 55
页数：7
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