Back to Search
Start Over
Valorization of food-waste hydrolysate by Lentibacillus salarius NS12IITR for the production of branched chain fatty acid enriched lipid with potential application as a feedstock for improved biodiesel.
- Source :
-
Waste Management . Jul2019, Vol. 94, p1-9. 9p. - Publication Year :
- 2019
-
Abstract
- • Production of branched-chain fatty acids enriched lipid (81% of total FA) without any supplementation in medium. • Use of food-waste hydrolysate as substrate. • Scalable cell lysis method followed by solvent extraction for lipid isolation. • Energy efficient lipid isolation method. Oxidation stability and cold flow properties of biodiesel can be improved by using lipid with enriched branched-chain fatty acid (BCFA) as a feedstock. A halophilic bacterium was utilized for the production of BCFA enriched lipid from acid hydrolysate of food-waste. The maximum reducing sugar obtained by hydrolysis of wheat bran, rice bran, mango peel, and orange peel were 64.52 ± 0.57, 38.7 ± 0.58, 55.64 ± 1.14, 36.29 ± 0.54 g/L, respectively. On assessing these hydrolysates as feedstock for growth of halophilic bacterium Lentibacillus salarius NS12IITR at 10 g/L reducing sugar concentration, wheat bran hydrolysate was found to be best in-terms of sugar consumption (92%), lipid production (0.70 ± 0.029 g/L) and maximum branched-chain fatty acid methyl ester (FAME) (81 ± 4.72% of total FAME). At 20 g/L of reducing sugar concentration of wheat bran hydrolysate, the biomass and lipid yields were almost doubled. Efficient lipid extraction from cell, involving thermolysis at 85 °C and pH 2 along with osmotic shock resulted in isolation of 69% of total lipid. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WHEAT bran
*FATTY acid methyl esters
*FATTY acids
*LIPIDS
*RICE bran
*ORANGE peel
Subjects
Details
- Language :
- English
- ISSN :
- 0956053X
- Volume :
- 94
- Database :
- Academic Search Index
- Journal :
- Waste Management
- Publication Type :
- Academic Journal
- Accession number :
- 137292507
- Full Text :
- https://doi.org/10.1016/j.wasman.2019.05.033