کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
682519 | 888985 | 2010 | 4 صفحه PDF | دانلود رایگان |
The aim of this research was to develop a cost-effective pilot-scale fermentation process for lipid production by Rhodotorula glutinis using starch wastewater. A temperature range of 30–37 °C, and an initial chemical oxygen demand (COD) higher than 30,000 mg/L, were optimal for growth and lipid synthesis in flask culture. Cultivation in a 5-L fermenter yielded more than 60 g/L biomass with a 30% (w/w) lipid content after 60 h. Pilot-scale production of microbial lipid in a 300-L fermenter using starch wastewater without sterilization and pH adjustment yielded 40 g/L biomass and 35% lipid content with 80% COD degradation after only 30–40 h of cultivation. Transesterification experiments demonstrated that lipids can be used for biodiesel production.
Journal: Bioresource Technology - Volume 101, Issue 15, August 2010, Pages 6092–6095