Microbial Conversion of Crude Glycerol to Dihydroxyacetone

被引：12

作者：

Liebminger, Stefan ^{[1
]}

Hofbauer, Robert ^{[2
]}

Siebenhofer, Matthaeus ^{[3
]}

Nyanhongo, Gibson S. ^{[2
]}

Guebitz, Georg M. ^{[2
]}

机构：

[1] Res Ctr Appl Biocatalysis, Graz, Austria

[2] Univ Nat Resources & Life Sci, Inst Environm Biotechnol, A-3430 Tulln, Austria

[3] VTU Engn GmbH, Grambach, Austria

来源：

WASTE AND BIOMASS VALORIZATION | 2014年 / 5卷 / 05期

关键词：

Crude glycerol; Bioreactor; Dihydroxyacetone; Foam separation technique; Reverse osmosis technique; GLUCONOBACTER-OXYDANS; FOAM FRACTIONATION; RAW GLYCEROL; ACID; OPTIMIZATION; PURIFICATION; SEPARATION; ADSORPTION; PROTEINS; KINETICS;

D O I：

10.1007/s12649-013-9288-x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Glycerol is increasingly being used as a versatile raw material within the biorefinery. However, it is very expensive to refine the crude glycerol to a high purity. In this study, the biotransformation of crude glycerol (79 % purity) using Gluconobacter oxydans spp. oxydans for the production of fine chemical dihydroxyacetone (DHA) was investigated. A conversion of up to 90 % with crude glycerol was demonstrated when using sorbitol as a secondary carbon source to enhance biomass production. A novel process for the recovery of DHA employing generation of foam, filtration and reverse osmosis, was developed. Using this strategy the protein content was reduced by up to 80 % and DHA recovery higher than 94 %.

引用

页码：781 / 787

页数：7

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