Enhancement of lipid accumulation in oleaginous marine yeast; Candida sp. for biodiesel production and antimicrobial properties

Abstract

Biodiesel production Antimicrobial activity Fatty acids, both free or as part of complex lipids, are essential components of all vital membranes. Thus, the aim of the present study is the production of fatty acids by marine yeast using some natural of low price sources. Marine Candida sp. isolated from SidiBishr, Mediterranean Sea, Egypt, showed the highest capabilities of lipid accumulation by 42.8% in 1.9 gl-1 dry biomass. Optimization of the fermented conditions for lipid production was carried out by using one factor at time. Molasses and urea as carbon and nitrogen sources showed the highest lipid content 71% in 6 gl-1 biomass at pH 5, 25 o C and 20% inoculum size, where, lipid accumulation and dry biomass of marine Candida sp. increased by 1.7 and 3.2 fold, respectively. Esterification of the accumulative lipid was performed, resulting in 34 fatty acid methyl esters (FAMEs) detected by Gas chromatographic analysis. Biodiesel properties were estimated showing the Degree of Unsaturation (

Production of Fatty Acids by Yarrowia Lipolytica Using Agro-Industrial Waste at Low Temperature

“…Fatty acids, both free and as part of complex lipids, are essential components of all vital membranes (Hassan et al, 2018). The type of species and growth conditions, i.e., temperature, pH, type of substrate, variation in C/N ratio and oxygen not only influence the efficiency of lipid accumulation, but also the fatty acid profiles of the cellular lipids according to Jacob (1993).…”