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Abstract
Sponge belongs to group of basalmost clade animal, and the study on them was less in Vietnam. Thus, the paper presents the results of species components and some bioactive substances of sponges collected in Central Southern area of Vietnam. In the years 2016 and 2017, we conducted six surveys and collected 21 sponge samples. The results showed total 13 genera were classified, in which 11 species were found only in Nha Trang Bay, Khanh Hoa. Also, the results of our analysis showed the presence of biological substances such as polyphenols, alkaloids, terpenoids and steroids. The extract from 21 samples expressed antioxidant and β glucosidase inhibition activity. These results showed that the sponge is quite diverse in terms of species composition and biological activity.
Keywords: sponge, biosubstance, Central southern area of Vietnam, polyphenol, application