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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Value-added oil and animal feed production from corn-ethanol stillage using the oleaginous fungus Mucor circinelloides
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Value-added oil and animal feed production from corn-ethanol stillage using the oleaginous fungus Mucor circinelloides

机译：使用油性真菌Mucor circinelloides从玉米-乙醇釜馏物生产增值的油和动物饲料

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摘要

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 100. g 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.
机译：这项研究突出了油性真菌Mucor circinelloides在吸收/吸收稀釜馏物（TS）中的油和营养物以及生产富含脂质和蛋白质的真菌生物质方面的潜力。在6升空运生物反应器中在TS上进行真菌培养2天，导致TS的油收率提高了92％，并增加了20 g / L的真菌生物量（干），脂质含量为46％（g每100克干燥生物质中的石油）。 TS中悬浮固体和可溶性化学需氧量（SCOD）的减少分别为95％和89％。真菌油中的多不饱和脂肪酸占总脂质的52％。在酵母麦芽（YM）肉汤中生长的真菌细胞比在TS（1.4 wt。％）上生长的真菌细胞具有更高的γ-亚麻酸浓度（17. wt。％）。在静止生长阶段，用粗甘油（10％，v / v）补充TS可使细胞油含量进一步增加32％（从46％增至61％）。

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