Enhancement of cell growth rate by light irradiation in the cultivation of Rhodotorula glutinis

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Title:	Enhancement of cell growth rate by light irradiation in the cultivation of Rhodotorula glutinis
Authors:	Yen, H.-W. , Zhang, Z.
Contributors:	Department of Chemical and Materials Engineering, Tunghai University
Keywords:	Irradiation;Oleaginous;Rhodotorula glutinis;Single cell oils;Total lipid
Date:	2011
Issue Date:	2013-05-21T09:12:11Z (UTC)
Abstract:	A yeast, Rhodotorula glutinis, is regarded as a potential microbial oil producer, due to its high lipid content. The flask results of this study indicated that irradiation could increase the growth of R. glutinis compared to that of a batch without irradiation. Further 5-l fermenter results confirmed that irradiation could greatly enhance the cells' growth rate and total lipid productivity. The maximum lipid productivity obtained in the fed-batch operation with 3 LED (light emitting diode) lamps was 0.39. g/l. h as compared to 0.34. g/l. h in the batch with 3 LED lamps and 0.19. g/l. h in the batch without irradiation. Conclusively, the irradiation could significantly increase the cells' growth rate, which, in turn, could be applied to the commercialized production of biodiesel from single cell oils. ? 2011 Elsevier Ltd.
Relation:	Bioresource Technology Volume 102, Issue 19, October 2011, Pages 9279-9281
Appears in Collections:	[Department of Chemical and Materials Engineering ] Periodical Articles

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