RRC ID 48197
Author Bharathiraja B, Ranjith Kumar R, PraveenKumar R, Chakravarthy M, Yogendran D, Jayamuthunagai J.
Title Biodiesel production from different algal oil using immobilized pure lipase and tailor made rPichia pastoris with Cal A and Cal B genes.
Journal Bioresour Technol
Abstract In this investigation, oil extraction was performed in marine macroalgae Gracilaria edulis, Enteromorpha compressa and Ulva lactuca. The algal biomass was characterized by Scanning Electron Microscopy and Fourier Transform-Infra Red Spectroscopy. Six different pre-treatment methods were carried out to evaluate the best method for maximum oil extraction. Optimization of extraction parameters were performed and high oil yield was obtained at temperature 55°C, time 150min, particle size 0.10mm, solvent-to-solid ratio 6:1 and agitation rate 500rpm. After optimization, 9.5%, 12.18% and 10.50 (g/g) of oil extraction yield was achieved from the respective algal biomass. The rate constant for extraction was obtained as first order kinetics, by differential method. Stable intracellular Cal A and Cal B lipase producing recombinant Pichia pastoris was constructed and used as biocatalyst for biodiesel production. Comparative analysis of lipase activity and biodiesel yield was made with immobilized Candida antarctica lipase.
Volume 213
Pages 69-78
Published 2016-8-1
DOI 10.1016/j.biortech.2016.02.041
PII S0960-8524(16)30167-5
PMID 26906444
MeSH Biocatalysis Biofuels* / analysis Biotechnology / methods* Cooking Enzymes, Immobilized / metabolism* Esterification Fatty Acids / analysis Kinetics Lipase / metabolism* Oils / metabolism* Pichia / metabolism* Seaweed / metabolism* Spectroscopy, Fourier Transform Infrared Ulva / metabolism Waste Products
IF 7.539
Times Cited 12
WOS Category AGRICULTURAL ENGINEERING BIOTECHNOLOGY & APPLIED MICROBIOLOGY ENERGY & FUELS
Resource
General Microbes JCM 10318