title: Conversion of solid organic wastes into oil via Boettcherisca peregrine (Diptera: Sarcophagidae) larvae and optimization of parameters for biodiesel production.
abstract: The feedstocks for biodiesel production are predominantly from edible oils and the high cost of the feedstocks prevents its large scale application. In this study, we evaluated the oil extracted from Boettcherisca peregrine larvae (BPL) grown on solid organic wastes for biodiesel production. The oil contents detected in the BPL converted from swine manure, fermentation residue and the degreased food waste, were 21.7%, 19.5% and 31.1%, respectively. The acid value of the oil is 19.02 mg KOH/g requiring a two-step transesterification process. The optimized process of 12∶1 methanol/oil (mol/mol) with 1.5% H(2)SO(4) reacted at 70°C for 120 min resulted in a 90.8% conversion rate of free fatty acid (FFA) by esterification, and a 92.3% conversion rate of triglycerides into esters by alkaline transesterification. Properties of the BPL oil-based biodiesel are within the specifications of ASTM D6751, suggesting that the solid organic waste-grown BPL could be a feasible non-food feedstock for biodiesel production.
authors.affiliation: State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China.
authors.forename: Sen
authors.initials: S
authors.lastname: Yang
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Qinglan
authors.initials: Q
authors.lastname: Zeng
authors.forename: Jibin
authors.initials: J
authors.lastname: Zhang
authors.forename: Ziniu
authors.initials: Z
authors.lastname: Yu
authors.forename: Ziduo
authors.initials: Z
authors.lastname: Liu
mesh_terms: D000818:Animals; D056804:Biofuels / Q000032:analysis*; D004951:Esterification; D005230:Fatty Acids, Nonesterified / Q000378:metabolism; D007814:Larva / Q000378:metabolism; D009821:Oils / Q000032:analysis / Q000378:metabolism*; D058493:Sarcophagidae / Q000378:metabolism*; D062611:Solid Waste / Q000032:analysis*; D014280:Triglycerides / Q000378:metabolism
chemical_list: D056804:Biofuels; D005230:Fatty Acids, Nonesterified; D009821:Oils; D062611:Solid Waste; D014280:Triglycerides