摘要
The agro-industrial byproducts from the industries for the Sikhye, traditional Korean food production (AIB-I), the apple juice production (AIB-II), and the soy sauce production (AIB-III) were examined as the substrate for the production of the heteropolysaccharide (PS-7) by B. indica HS2001. Major components of AIB-I are dextrin, maltotriose, and maltose. Major ones of AIB-II and AIB-II were carbohydrate and protein, respectively. Dextrin and AIB-II were found to be better carbon sources than glucose for the production of PS-7. Conversion rates of PS-7s from 2% (w/v) dextrin and 2% (w/v) AIB-II as the carbon source were 20%. As concentration of agro-industrial byproducts as the carbon source increased, cell growth and the production of PS-7 increased whereas conversion rates of PS-7s decreased. The monomeric components of PS-7s produced by B. indica HS2001 with agro-industrial byproducts as the carbon source were identified to be glucose and rhamnose and their molar ratios of rhamnose to glucose were all in the range of 1.0 to 4.5∼4.7. It seems that B. indica HS2001 utilized all the agro-industrial byproducts used in this study and produced PS-7s with the same composition as well as the same molar ratio of their monomeric component.
摘要译文
西瓜的工业副产品，传统的韩国食品生产（AIB-I），苹果汁生产（AIB-II）和酱油生产（AIB-III）作为由籼稻HS2001生产杂多糖（PS-7）的底物。 AIB-I的主要成分是糊精，麦芽三糖，和麦芽糖。 AIB-II和AIB-II主要是碳水化合物和蛋白质。发现糊精和AIB-II比生产PS-7的葡萄糖更好。作为碳源的2％（w / v）糊精和2％（w / v）AIB-II的PS-7s的转化率为20％。随着农业工业副产品碳源浓度的增加，细胞生长和PS-7的产生增加，而PS-7的转化率降低。由B产生的PS-7的单体组分以工业副产物为碳源的籼稻HS2001为葡萄糖和鼠李糖，鼠李糖与葡萄糖的摩尔比为1.0〜4.5〜4.7。似乎籼米HS2001利用了本研究中使用的所有农工副产品，并且生产了具有相同组成和相同摩尔比的单体组分的PS-7。
HyuckJin[a];Hyun-SookKim[a];Sung-KooKim[b];Myung-KyoShin[c];Jae-HoKim[d];Jin-WooLee[a];. Production of heteropolysaccharide-7 by Beijerinckia indica from agro-industrial byproducts[J]. Enzyme and Microbial Technology, 2002,30(6): 822-827