Abstract:
:This study highlights the potential of oleaginous fungus, Mucor circinelloides in adsorbing/assimilating oil and nutrients in thin stillage (TS), and producing lipid and protein-rich fungal biomass. Fungal cultivation on TS for 2 days in a 6-L airlift bioreactor, resulted in a 92% increase in oil yield from TS, and 20 g/L of fungal biomass (dry) with a lipid content of 46% (g of oil per 100g dry biomass). Reduction in suspended solids and soluble chemical oxygen demand (SCOD) in TS were 95% and 89%, respectively. The polyunsaturated fatty acids in fungal oil were 52% of total lipids. Fungal cells grown on Yeast Malt (YM) broth had a higher concentration of γ-linolenic acid (17 wt.%) than those grown on TS (1.4 wt.%). Supplementing TS with crude glycerol (10%, v/v) during the stationary growth phase led to a further 32% increase (from 46% to 61%) in cellular oil content.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Mitra D,Rasmussen ML,Chand P,Chintareddy VR,Yao L,Grewell D,Verkade JG,Wang T,van Leeuwen JHdoi
10.1016/j.biortech.2011.12.031subject
Has Abstractpub_date
2012-03-01 00:00:00pages
368-75eissn
0960-8524issn
1873-2976pii
S0960-8524(11)01777-9journal_volume
107pub_type
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