具有生物技术生产前景的丙酸细菌的分离与筛选

Proceedings of the 1st International Symposium Innovations in Life Sciences (ISILS 2019) Pub Date : 2019-11-01 DOI:10.2991/isils-19.2019.33

O. Khaeva, B. Tsugkiev, L. Ikoeva

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引用次数: 0

摘要

丙酸杆菌属细菌是极具生物技术潜力的微生物。本文研究了从北奥塞梯-阿尔巴尼亚共和国不同地区原料奶中分离的新型丙酸菌株的生物学特性。根据形态特征，分离菌株的细胞为不动的棍棒，末端圆形，不形成孢子，革兰氏阳性。在生化试验中测定了菌株发酵碳水化合物的能力。研究结果表明，所研究的菌株属弗氏丙酸杆菌。研究了微生物菌株对低pH值和胃肠道分泌物的耐药性。关键词:丙酸菌;属丙酸菌属;丙酸菌属freudenreichii;识别;耐酸性;胆汁抗性

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Isolation and Selection of Propionic Acid Bacteria Promising for Biotechnological Production

Bacteria of the genus Propionibacteruim are the microorganisms with great biotechnological potential. The article deals with studies of biological properties of new propionic acid bacteria strains isolated from raw milk in different regions of Republic of North Ossetia-Alania. According to morphological characteristics, the cells of the isolated strains are motionless sticks with rounded ends that do not form spores and are gram-positive. The ability of strains to ferment carbohydrates in biochemical tests was determined. The research results showed that the studied bacterial strains were referred to Propionibacterium freudenreichii. Resistance of microorganism strains to low pH values and gastrointestinal tract secretions was studied. Keywords—propionic acid bacteria; genus Propionibacterium; Propionibacterium freudenreichii; identification; acid resistance; bile resistance

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Proceedings of the 1st International Symposium Innovations in Life Sciences (ISILS 2019)

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