Environmentally-friendly strategy for separation of 1, 3-propanediol using biocatalytic conversion. (December 2017)

• Record Type: Journal Article
• Authors: cui, Caixia; Zhang, Zhe; Chen, Biqiang
• Is Part Of: Bioresource technology. Volume 245:Part A(2017)
• Page Start: 477
• Page End: 482
• Publication Date: 2017-12
• Subjects: 1, 3-Propanediol -- Separation -- Lipase -- Environmentally-friendly; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.08.205
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: An entire enzymatic route for separating 1, 3-propanediol was established. Method for separating 1, 3-propanediol is simple, efficient, and environmentally-friendly. 1, 3-Propanediol recovery efficiency reached 96%. 1, 3-Propanediol can be efficiently separated with 2, 3-butanediol and glycerol using lipase. Abstract: Glycerol waste from the biodiesel production can be used as a carbon source in the production of 1, 3-propanediol (1, 3-PD) through microbial fermentation. However, downstream processing is a major bottleneck that restricts its biological production. Here, we investigated an environmentally-friendly method to enzymatically separate 1, 3-PD. The transformation of 1, 3-PD to an ester was achieved by exploiting the esterification reaction with fatty acids under lipase catalysis. The reaction efficiency was optimized using different poly-alcohols that were existed in the fermentation broth reacted with a fatty acid. Whereas the 1, 3-PD conversion reached 62%, only a 0.06% and 0.08% conversion was reached for 2, 3-butanediol and glycerol, illustrating the former's more efficient separation. The recovery efficiency of 1, 3-PD was 96%. Finally, 1, 3-PD was obtained by lipase-directed ester hydrolysis. Taken together, the bio-catalyzed separation process presented here is a novel and promising method for recovering 1, 3-PD.