Converting paper mill sludge into neutral lipids by oleaginous yeast Cryptococcus vishniaccii for biodiesel production.

Authors :: Deeba F
Pruthi V
Negi YS
Source :: Bioresource technology [Bioresour Technol] 2016 Aug; Vol. 213, pp. 96-102. Date of Electronic Publication: 2016 Mar 03.
Publication Year :: 2016
Abstract: Paper mill sludge (PMS) was assessed as cheap renewable lignocellulosic biomass for lipid production by the oleaginous yeast Cryptococcus vishniaccii (MTCC 232). The sonicated paper mill sludge extract (PMSE) exhibited enhanced lipid yield and lipid content 7.8±0.57g/l, 53.40% in comparison to 5.5±0.8g/l, 40.44% glucose synthetic medium, respectively. The accumulated triglycerides (TAG) inside the lipid droplets (LDs) were converted to biodiesel by transesterification and thoroughly characterized using GC-MS technique. The fatty acid methyl ester (FAME) profile obtained reveals elevated content of oleic acid followed by palmitic acid, linoleic acid and stearic acid with improved oxidative stability related to biodiesel quality.<br /> (Copyright © 2016 Elsevier Ltd. All rights reserved.)

Subjects :: Biomass
Chromatography, Thin Layer
Cryptococcus cytology
Cryptococcus growth & development
Esters analysis
Fatty Acids analysis
Gas Chromatography-Mass Spectrometry
Lipid Droplets chemistry
Spectroscopy, Fourier Transform Infrared
Biofuels microbiology
Biotechnology methods
Cryptococcus metabolism
Industrial Waste
Lipids biosynthesis
Paper
Sewage chemistry

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