Composition and Bioactivity Analysis of Freeze-dried Powder of Auricularia heimuer Y9 Liquid Fermentation Product
To clarify the bioactive components contents and functions of the fermentation product from Auricularia heimuer,the contents of protein,fiber,polysaccharide,melanin and flavonoid,as well as the antioxidant and anticancer activities of the freeze-dried powder of A.heimuer Y9 liquid fermentation product were determined.The results showed that,in A.heimuer Y9 fermentation product freeze-dried powder,the crude protein content was 135.04 mg·g-1,the crude fiber content was 39.24 mg·g-1,the crude polysaccharide content was 77.04 mg·g-1,the melanin content was 2.80 mg·g-1,and the total flavonoid content was 4.72 mg·g-1.The IC50 values of DPPH·,O2·-and OH scavenging rates of the fermentation product freeze-dried powder were 4.002、4.345 and 8.623 mg·mL-1,respectively.The IC50 values of the inhibition rates against gastric cancer cells(BGC-823)and breast cancer cells(MCF-7)were 9.775 and 3.995 mg·mL-1,respectively.The fermentation product were rich in bioactive com-ponents with strong antioxidant and antitumor activities.
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