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  • use of organic waste from the brewery industry for high-density cultivation of the docosahexaenoic acid-rich microalga, aurantiochytrium sp. krs101

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 600
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in the present study, spent yeast from a brewery was used as the growth substrate for the docosahexaenoic acid (dha)-rich microalga, aurantiochytrium sp. krs101. a significant biomass yield (6.69 g/l/d) was obtained using only spent yeast as the growth substrate, with simple stirring as pretreatment. maximization of nutrient utilization through the use of stepwise cultivation increased the yield to 31.8 g/l of biomass. dha constituted 38.2% (w/w) of the total fatty acids, and the highest dha productivity was observed when the c/n ratio was 20:1 (w/w). spent yeast thus served as a good growth substrate for the production of dha. economic assessment revealed that stepwise cultivation using spent yeast as either the sole growth substrate or as a nutrient source could substantially reduce the production cost of microalgal dha.

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