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Utilization of soybean curd residue for polysaccharides by Wolfiporia extensa (Peck) Ginns and the antioxidant activities in vitro

机译:狼毒多糖对豆腐渣多糖的利用及体外抗氧化活性

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摘要

To reduce nutrient cost and improve the production of polysaccharides by Wolfiporia extensa (Peck) Ginns (F.A. Wolf), soybean curd residue (SCR), a food waste, was chosen as the nutrient source in this study. The objective of this research is to determine optimum culture conditions for solid state fermentative production of polysaccharides and evaluate the antioxidant activities. Response surface methodology (RSM) was employed to optimize the fermentation conditions of F.A. Wolf for the enhancement of polysaccharides. The optimal conditions were obtained by response surface methodology as follows: fermentation temperature 23.7 °C, fermentation time 7.5 days, and inoculum size 15.5 mL. Under optimized conditions, the polysaccharides yield reached 88.93 ± 1.87 mg/g, which was in close agreement with values predicted by the mathematical models. Furthermore, the polysaccharides exhibited positive antioxidant activities. This research provides references for the large-scale production of polysaccharides by F.A. Wolf and points to a new direction for SCR utilization.
机译:为了降低营养成分成本并提高延龄狼毒(Peck)杜松子酒(F.A. Wolf)的多糖产量,本研究选择了食物残渣豆腐渣(SCR)作为营养来源。这项研究的目的是确定固态发酵生产多糖的最佳培养条件,并评估其抗氧化活性。响应面法(RSM)用于优化F.A. Wolf的发酵条件以增强多糖。通过响应面方法获得了最佳条件,如下所示:发酵温度23.7°C,发酵时间7.5天,接种量15.5 mL。在优化的条件下,多糖产量达到88.93±1.87 mg / g,与数学模型预测的值非常吻合。此外,多糖表现出正的抗氧化活性。这项研究为F.A. Wolf大规模生产多糖提供了参考,并为SCR利用指明了新的方向。

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