title: Research on microbial lipid production from potato starch wastewater as culture medium by Lipomyces starkeyi.
abstract: In this paper, potato starch wastewater as culture medium was treated by the oleaginous yeast Lipomyces starkeyi to biosynthesize microbial lipid. The result indicated that carbon source types, carbon source concentration, nitrogen source types, nitrogen source concentration, inoculum size, and cultivation time all had a significant effect on cell growth and microbial lipid accumulation in batch cultures. A measure of 120 g/L of glucose concentration, 3.0 g/L of (NH4)2SO4 concentration, 10% inoculum size, and incubation time 96 h cultivated in a shaking flask at 30 °C were found to be the optimal conditions not only for cell growth but also for lipid synthesis. Under this condition, the cellular biomass and lipid content could reach 2.59 g/L and 8.88%, respectively. This work provides a new method for effective utilization of potato starch wastewater, which has particular social and economic benefits for yeast treatment technology.
authors.affiliation: Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, China.
authors.forename: Jun-Xian
authors.initials: JX
authors.lastname: Liu
authors.forename: Qin-Yan
authors.initials: QY
authors.lastname: Yue
authors.forename: Bao-Yu
authors.initials: BY
authors.lastname: Gao
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Qian
authors.initials: Q
authors.lastname: Li
authors.forename: Pei-Dong
authors.initials: PD
authors.lastname: Zhang
mesh_terms: D018533:Biomass; D003470:Culture Media / Q000494:pharmacology*; D005947:Glucose / Q000378:metabolism; D050356:Lipid Metabolism / Q000187:drug effects*; D008055:Lipids / Q000032:analysis / Q000096:biosynthesis*; D055160:Lipomyces / Q000254:growth & development / Q000378:metabolism*; D017672:Nitrogen Compounds / Q000378:metabolism; D011198:Solanum tuberosum; D013997:Time Factors; D062065:Wastewater / Q000737:chemistry
chemical_list: D003470:Culture Media; D005947:Glucose; D008055:Lipids; D017672:Nitrogen Compounds; D062065:Wastewater