Extraction optimization of antioxidant polysaccharides from Auricularia auricula fruiting bodies

AUTOR(ES)

Zou, Yu, Jiang, Aili, Tian, Mixia

FONTE

Food Sci. Technol

DATA DE PUBLICAÇÃO

25/08/2015

RESUMO

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.

Documentos Relacionados

• Chemical composition and radical scavenging activity of melanin from Auricularia auricula fruiting bodies
• Optimization of culture medium for production of melanin by Auricularia auricula
• Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides
• Extraction optimization of antioxidant polysaccharides from leaves of Gynura bicolor (Roxb. & Willd.) DC
• Optimization of ultrasound-assisted enzymatic extraction and in vitro antioxidant activities of polysaccharides extracted from the leaves of Perilla frutescens