Extraction optimization of antioxidant polysaccharides from Auricularia auricula fruiting bodies

Food Science and Technology (Campinas)

Yu Zou¹  Aili Jiang¹  Mixia Tian¹ 

关键词: Auricularia auricula;    polysaccharide;    extraction;    antioxidant activity;   

DOI  :  10.1590/1678-457X.6712

来源: SciELO

【 摘 要 】

AbstractThe extraction conditions (liquid-solid ratio, temperature and time) of antioxidant polysaccharides from Auricularia auricula fruiting bodies (AAFB) were optimized using response surface methodology (RSM). The Box-Behnken experimental results showed the optimum extraction conditions as follows: a liquid-solid ratio of 38.77 mL/g, a temperature of 93.98 °C and a time of 3.41 h. Under these conditions, the maximal polysaccharide yield was 10.46 g/100 g. In addition, AAFB polysaccharides exhibited stronger antioxidant activities by evaluating of Fe2+-chelating ability and hydroxyl radical scavenging activity with IC50 values of 0.43 and 0.38 mg/mL, respectively. These results indicated that AAFB polysaccharides might be potentially used as a natural antioxidant.

【 授权许可】

CC BY   
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