Fostering triacylglycerol accumulation in novel oleaginous yeast Cryptococcus psychrotolerans IITRFD utilizing groundnut shell for improved biodiesel production. (October 2017)

• Record Type: Journal Article
• Authors: Deeba, Farha; Pruthi, Vikas; Negi, Yuvraj S.
• Is Part Of: Bioresource technology. Volume 242(2017)
• Page Start: 113
• Page End: 120
• Publication Date: 2017-10
• Subjects: Cryptococcus psychrotolerans IITRFD -- Groundnut shell -- Biodiesel -- Nile red -- Lipid productivity; 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.2017.04.001
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Novel oleaginous yeast Cryptococcus psychrotolerans IITRFD was isolated. Groundnut shell used as cost-effective feedstock for biodiesel production. Highest lipid productivity of 0.044 ± 0.005 g/L/h was recorded on GSH. Predominant FAMEs obtained were C16:0, C18:1 and C18:2. Balance between OS and CFFP for improved biodiesel quality. Abstract: The investigation was carried out to examine the potential of triacylglycerol (TAG) accumulation by novel oleaginous yeast isolate Cryptococcus psychrotolerans IITRFD on utilizing groundnut shell acid hydrolysate (GSH) as cost-effective medium. The maximum biomass productivity and lipid productivity of 0.095 ± 0.008 g/L/h and 0.044 ± 0.005 g/L/h, respectively with lipid content 46% was recorded on GSH. Fatty acid methyl ester (FAME) profile obtained by GC–MS analysis revealed oleic acid (37.8%), palmitic (29.4%) and linoleic (32.8%) as major fatty acids representing balance between oxidative stability (OS) and cold flow filter properties (CFFP) for improved biodiesel quality. The biodiesel property calculated were correlated well with the fuel standards limits of ASTMD6751, EN 14214 and IS 15607. The present findings raise the possibility of using agricultural waste groundnut shell as a substrate for production of biodiesel by novel oleaginous yeast isolate C. psychrotolerans IITRFD.