title: The synergistic effects for the co-cultivation of oleaginous yeast-Rhodotorula glutinis and microalgae-Scenedesmus obliquus on the biomass and total lipids accumulation.
abstract: In this co-culture of oleaginous yeast-Rhodotorula glutinis and microalgae-Scenedesmus obliquus, microalgae potentially acts as an oxygen generator for the growth of aerobic yeast while the yeast mutually provides CO2 to the microalgae as both carry out the production of lipids. To explore the synergistic effects of co-cultivation on the cells growth and total lipids accumulation, several co-culture process parameters including the carbon source concentration, temperature and dissolved oxygen level would be firstly investigated in the flask trials. The results of co-culture in a 5L photobioreactor revealed that about 40-50% of biomass increased and 60-70% of total lipid increased was observed as compared to the single culture batches. Besides the synergistic effects of gas utilization, the providing of trace elements to each other after the natural cells lysis was believed to be another benefit to the growth of the overall co-culture system.
authors.affiliation: Department of Chemical and Materials Engineering, Tunghai University, Taiwan, ROC. Electronic address: hwyen@thu.edu.tw.
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Yen
authors.affiliation: Department of Chemical and Materials Engineering, Tunghai University, Taiwan, ROC.
authors.forename: Pin-Wen
authors.initials: PW
authors.lastname: Chen
authors.affiliation: Department of Chemical and Materials Engineering, Tunghai University, Taiwan, ROC.
authors.forename: Li-Juan
authors.initials: LJ
authors.lastname: Chen
mesh_terms: D018533:Biomass; D018920:Coculture Techniques / Q000379:methods*; D005227:Fatty Acids / Q000096:biosynthesis; D005947:Glucose / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D008055:Lipids / Q000096:biosynthesis*; D058086:Microalgae / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D058433:Photobioreactors / Q000382:microbiology; D012248:Rhodotorula / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D044444:Scenedesmus / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D013696:Temperature
chemical_list: D005227:Fatty Acids; D008055:Lipids; D005947:Glucose
keywords: Algae; Co-culture; Mixed cultivation; Synergistic; Yeast