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  • Title: Enhancement of cell growth rate by light irradiation in the cultivation of Rhodotorula glutinis.
    Author: Yen HW, Zhang Z.
    Journal: Bioresour Technol; 2011 Oct; 102(19):9279-81. PubMed ID: 21757336.
    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.
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