کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
679834 1459958 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Harvesting of Chlorella sorokiniana by co-culture with the filamentous fungus Isaria fumosorosea: A potential sustainable feedstock for hydrothermal gasification
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Harvesting of Chlorella sorokiniana by co-culture with the filamentous fungus Isaria fumosorosea: A potential sustainable feedstock for hydrothermal gasification
چکیده انگلیسی


• A new strain of Isaria fumosorosea growing with algae was isolated and characterized.
• The fungus was co-cultivated with Chlorella sorokiniana as a lichen easy to harvest.
• This approach has the potential to reduce operational cost of microalgae production.
• Co-culture of microalgae and fungi should improve the sustainability of the process.

Despite recent advances in down-stream processing, production of microalgae remains substantially limited because of economical reasons. Harvesting and dewatering are the most energy-intensive processing steps in their production and contribute 20–30% of total operational cost. Bio-flocculation of microalgae by co-cultivation with filamentous fungi relies on the development of large structures that facilitate cost effective harvesting. A yet unknown filamentous fungus was isolated as a contaminant from a microalgal culture and identified as Isaria fumosorosea. Blastospores production was optimized in minimal medium and the development of pellets, possibly lichens, was followed when co-cultured with Chlorella sorokiniana under strict autotrophic conditions. Stable pellets (1–2 mm) formed rapidly at pH 7–8, clearing the medium of free algal cells. Biomass was harvested with large inexpensive filters, generating wet slurry suitable for hydrothermal gasification. Nutrient rich brine from the aqueous phase of hydrothermal gasification supported growth of the fungus and may increase the process sustainability.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 185, June 2015, Pages 353–361
نویسندگان
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