Effect of biodiesel-derived raw glycerol on 1,3-propanediol production by different microorganisms

Applied Biochemistry and Biotechnology
Chuloo MoonYoungsoon Um

Abstract

The microbial production of 1,3-propanediol (1,3-PD) from raw glycerol, a byproduct of biodiesel production, is economically and environmentally advantageous. Although direct use of raw glycerol without any pretreatment is desirable, previous studies have reported that this could cause inhibition of microbial growth. In this study, we investigated the effects of raw glycerol type, different microorganisms, and pretreatment of raw glycerol on the production of 1,3-PD. Raw glycerol from waste vegetable-oil-based biodiesel production generally caused more inhibition of 1,3-PD production and microbial growth compared to raw glycerol from soybean-oil-based biodiesel production. In addition, two raw glycerol types produced from two biodiesel manufacturers using waste vegetable oil exhibited different 1,3-PD production behavior, partially due to different amounts of methanol included in the raw glycerol from the two biodiesel manufacturers. Klebsiella strains were generally resistant to all types of raw glycerol while the growth of Clostridium strains was variably inhibited depending on the type of raw glycerol. The 1,3-PD production of the Clostridium strains using acid-pretreated raw glycerol was significantly enhanced compared to t...Continue Reading

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Citations

Aug 8, 2014·Annals of Microbiology·Dorota SamulWłodzimierz Grajek
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Jun 2, 2012·Applied Biochemistry and Biotechnology·Juan Daniel RivaldiSilvio Silvério da Silva
Jun 25, 2013·Applied Biochemistry and Biotechnology·Sukhyeong ChoYoungsoon Um
Jan 29, 2021·Applied Biochemistry and Biotechnology·Juliana Silva de SantanaIrapuan Oliveira Pinheiro

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