Studies on Purification and Some Properties of Antifungal Compounds in ZK-I Fermentation
ZK-I菌发酵液中抗真菌活性化合物的纯化与部分特性研究

ZK-I belongs to Bacillus sp.and shown strong antagonistic abilities to Saccharomyces cerevisiae and several plant pathogens,such as phytophthora sp,and Fusarium oxysporum f.sp.vasinfectum etc.,in this paper,we reported the purification of the antifungal substances and some properities of antifungal compounds.After acid precipitation,silica gel chromatography,C_(18) reversed-phase silica gel chromatogra- phy,we obtained four compounds and knew their peaks were all single by HPLC testing,Combined with MS and HPLC,we concluded that they are the homologous series of compounds,A is jiean-peptide A and the others were confirmed to the analog of Jiean-peptide A in struc- ture.