CAJ | 학술논문

目的:利用微生物转化的方法对大黄中的游离蒽醌类化合物进行结构修饰.方法:筛选了21种微生物对大黄酚(1),大黄素甲醚(2),大黄素(3)的转化作用.结果表明刺囊毛酶对大黄酚,大黄素甲醚,大黄素具有转化作用.结果:制备、分离刺囊毛酶对大黄酚,大黄素甲醚,大黄素的转化产物,分别得到大黄酚-8-O-β-D-葡萄糖苷(4),大黄素甲醚-8-O-β-D-葡萄糖苷(5),大黄素甲醚-1-O-β-D-葡萄糖苷(6),ω-羟基大黄素(7)4个转化产物.利用半乳糖代替葡萄糖作为培养基的碳源,制备、分离刺囊毛酶对大黄酚的转化产物,初步考察了培养基中不同的碳源对糖苷化产物的影响.得到的转化产物为大黄酚-1-O-β-D-葡萄糖苷和大黄酚-8-O-β-D-葡萄糖苷(8a和8b)的混合物,而非大黄酚的半乳糖苷.
목적:이용미생물전화적방법대대황중적유리은곤류화합물진행결구수식.방법:사선료21충미생물대대황분(1),대황소갑미(2),대황소(3)적전화작용.결과표명자낭모매대대황분,대황소갑미,대황소구유전화작용.결과:제비、분리자낭모매대대황분,대황소갑미,대황소적전화산물,분별득도대황분-8-O-β-D-포도당감(4),대황소갑미-8-O-β-D-포도당감(5),대황소갑미-1-O-β-D-포도당감(6),ω-간기대황소(7)4개전화산물.이용반유당대체포도당작위배양기적탄원,제비、분리자낭모매대대황분적전화산물,초보고찰료배양기중불동적탄원대당감화산물적영향.득도적전화산물위대황분-1-O-β-D-포도당감화대황분-8-O-β-D-포도당감(8a화8b)적혼합물,이비대황분적반유당감.
AIM:To study the biotransformation for the structure modification of anthraquinones.METHOD:Mucor spinosus was employed for the biotransformation of three rhubarb anthraquinones-chrysophanol(1),physcion(2) and emodin(3).RESULT AND CONCLUSION:Four metabolites were obtained. On the basis of their physio-chemical data,the structures of the biotransformated products were characterized as chrysophanol-8-O-β-D- glucopyranoside(4),physcion-8-O-β-D-glucopyranoside(5),physcion-1-O-β-D- glucopyranoside(6) and citreorosein(7) respectively. Compound 1 was incubated in the culture of Mucor spinosus by using galactose as carbon source instead of glucose,it was found that the corresponding product was a mixture of chrysophanol-1-O-β-D-glucopyranoside and chrysophanol-8-O-β-D-glucopyranoside(8a and 8b) other than the corresponding galactose glycoside as expected. By this test,we preliminarily explore with the influence of different kinds of carbon sources added to the medium on the glycosylation.