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  • a novel process for enhancing oil production in algae biorefineries through bioconversion of solid by-products

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 563
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper focuses on a novel process for adding value to algae residue. in current processes oleaginous microalgae are grown and harvested for lipid production leaving a lipid-free algae residue. the process described here includes conversion of the carbohydrate fraction into glucose prior to lipid extraction. this can be fermented to produce up to 15% additional lipids using another oleaginous microorganism. it was found that in situ enzymes can hydrolyze storage carbohydrates in the algae into glucose and that a temperature of 55 °c for about 20 h gave the best glucose yield. up to 75% of available carbohydrates were converted to a generic fermentation feedstock containing 73 g/l glucose. the bioconversion step was found to increase the free water content by 60% and it was found that when the bioconversion was carried out prior to the extraction step, it improved the solvent extractability of lipids from the algae.

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