%0 Journal Article %T Fractionation and structural identification of antibiotic activity substances from <i>Streptomyces herbaricolor</i> HNS2-2 %A Lili Chen %A Youzhi Li %A Hongjian Zhu %A Yuhua Liu %A Bida Gao %J Agricultural Sciences %P 567-571 %@ 2156-8561 %D 2012 %I Scientific Research Publishing %R 10.4236/as.2012.34068 %X Four groups of antibiotic activity compounds were separated and purified from the ethyl acetate fraction of a broth culture of Streptomyces herbaricolor HNS2-2.Trace analyses were performed and anti-microbial activities were determined. The antibiotic activity compounds were identified as quercetin dehydrate ¢Ù, p-hydroxyphenyl ¢Ú, 4¡¯-hydroxyflavanone ¢Û, and 3-hydroxyflavone ¢Ü based on spectroscopic data. Compounds 1-4 showed significant antimicrobial activities against Staphylococcus aureus and the tobacco mosaic virus in vitro, suggesting their potential agricultural and medical applications. %K < %K i> %K Streptomyces Herbaricolor< %K /i> %K HNS2-2 %K Quercetin Dehydrate %K p-Hydroxyphenyl %K 4-Hydroxyflavanone %K 3-Hydroxyflavone %K Bioactivity %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20170