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Microbial lipid production from pectin-derived carbohydrates by oleaginous yeasts

Paper ID Volume ID Publish Year Pages File Format Full-Text
34357 45019 2015 6 PDF Available
Title
Microbial lipid production from pectin-derived carbohydrates by oleaginous yeasts
Abstract

•Three oleaginous yeasts efficiently converted galacturonate into lipids.•Pectin and beet pulp hydrolysates were suitable for lipid production.•Galacturonate, arabinose and glucose were all consumed.•Lipid samples contained C16 and C18 long chain fatty acids.

Pectin-rich biomass is relatively less studied as feedstock for the production of biofuel and chemicals, partially because the major compositional carbohydrates galacturonate and arabinose are generally disfavored substrates for microorganisms. To explore the capability of microbial lipid production from pectic biomass, 10 oleaginous yeasts were evaluated by using galacturonate as sole carbon sources. Three strains belonging to Trichosporon cutaneum, Trichosporon fermentans and Cryptococcus curvatus were found to effectively convert galacturonate into lipid with lipid yields up to 0.12 g/g. Slightly higher lipid yields were also obtained on beet pulp hydrolysates, and cellular lipid contents were higher than 40.0% except for the T. fermentans strain. All of these lipid samples had long chain fatty acid compositional profiles similar to those of vegetable oils. The results demonstrate the potential of lipid production from pectic biomass, which is of great significance in terms of integrating wastes management and biofuel production.

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Keywords
Sugar beet pulp; Galacturonate; Microbial lipid; Oleaginous yeasts; Pectic biomass; Pectin
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Microbial lipid production from pectin-derived carbohydrates by oleaginous yeasts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 50, Issue 7, July 2015, Pages 1097–1102
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us