%0 Journal Article
%A Cai, Ming
%A Lin, Yang
%A Luo, Yin-long
%A Liang, Han-hua
%A Sun, Peilong
%D 2015
%I Begell House
%K medicinal mushrooms, Auricularia auricula-judae, crude polysaccharides, antimicrobial, antioxidant
%N 6
%P 591-600
%R 10.1615/IntJMedMushrooms.v17.i6.90
%T Extraction, Antimicrobial, and Antioxidant Activities of Crude Polysaccharides from the Wood Ear Medicinal Mushroom Auricularia auricula-judae (Higher Basidiomycetes)
%U https://www.dl.begellhouse.com/journals/708ae68d64b17c52,52f67ca6221cc3fa,1ed5215d4bef89c8.html
%V 17
%X In this study, crude polysaccharides of culinary-medicinal mushroom Auricularia auricular-judae were extracted by hot water extraction and alcohol precipitation, and their antimicrobial and antioxidant activities were investigated. An optimum extraction condition was obtained at a ratio of liquid to solid 70 mL/g, temperature 90°C, time 4 h and extraction number 4. Accordingly, the best yield of crude polysaccharides was 6.89% with 76.12% in purity. Some bacteria and fungi were used for antimicrobial studies. It was found that crude A. auricula-judae had great antimicrobial activities against Escherichia coli and Staphylococcus aureus, but no activities on the others. The inhibitory diameters of antimicrobial zones for the two were 5.55 ± 0.182 and 9.84 ± 0.076 mm, respectively. Moreover, crude A. auricula-judae had significant antioxidant activities in scavenging free radicals, reducing power assays, and Fe2+ chelating ability assay. Results revealed that crude A. auricula-judae has a great potential as antimicrobial and antioxidant, and it can be a supplementary food for human health.
%8 2015-06-30