一株珊瑚虫草菌丝培养物中天然色素的分离和高分辨质谱分析  

Isolation and HPLC-HRMS analysis of a natural pigment from Mycelia of a strain of Cordyceps martialis

作　　者：王学新[1] 王小董[1] 耿广青[1] 庄梦敏[1] 罗飞飞[1] 张琛[1] 胡丰林[1] 

机构地区：[1]安徽农业大学微生物防治省重点实验室,合肥230036

出　　处：《安徽农业大学学报》2011年第4期596-599,共4页Journal of Anhui Agricultural University

基　　金：国家自然科学基金(30871676);安徽省自然科学基金(11040606M69);安徽省高校省级科研项目(KJ2010B338)共同资助

摘　　要：在一次对虫生真菌天然色素筛选过程中,发现1株珊瑚虫草分离菌株RCEF4022的菌丝体含黄色色素。采用半制备高效液相色谱方法从该菌甲醇提取物中分离纯化出1种橘黄色物质P-1。高分辨液质联用分析结果表明P-1的分子式为C30H18O12。经化学试剂显色反应以及波谱学方法鉴定,确定P-1为羟基蒽醌类色素2,2',4,4',5,5'-hexahydroxy-7,7'-dimethoxy-1,1'-bianthraquinone。该色素化合物尚属首次从虫生真菌中分离得到。During screening for natural pigments from entomogenous fungi,mycelia of a strain RCEF4022 of Cordyceps martialis were observed to contain a yellow pigment.An orange yellow pigment named P-1 was ex-tracted from the mycelia with methanol and prepared with semi-preparative HPLC（High Performance Liquid Chromatography）.High resolution MS analysis revealed that the molecular formula of the pigment was C30H18O12.The pigment compound was identified by color development reaction,Ms and UV as a dimeric an-thraquinone 2,2＇,4,4＇,5,5＇-hexahydroxy-7,7＇-dimethoxy-1,1＇-bianthraquinone.This pigment was isolated from en-tomogenous fungi for the first time.

关 键 词：珊瑚虫草 天然色素 ESI-MS 

分 类 号：S476.12[农业科学—农业昆虫与害虫防治]