In vitro probiotic potential of Lactobacillus delbreuckii subsp. bulgaricus F18 isolated from homemade butter

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• 作者：Sh. Handa ; N. Sharma
• 关键词：probiotic attributes ; Lactobacillus delbreuckii subsp. bulgaricus ; cell autoaggregation ; antagonism ; antibiotics
• 刊名：Microbiology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：86
• 期：1
• 页码：143-149
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Microbiology; Medical Microbiology;
• 出版者：Pleiades Publishing
• ISSN：1608-3237
• 卷排序：86

文摘

Present study was carried out to evaluate a new bacterial strain, Lactobacillus delbreuckii subsp. bulgaricus F18 as probiotic strain. L. delbreuckii subsp. bulgaricus F18 was isolated from homemade butter and identified by conventional and molecular techniques. The 16S rRNA sequence of the isolate was registered in National Centre for Biotechnology Information (NCBI) under accession number KT865224. In the present study, L. delbreuckii subsp. bulgaricus F18 exhibited highest viable counts against acid tolerance or low pH tolerance (at pH 1 after 2h of incubation), bile tolerance (conc. 1%), autoaggregation (68%), cell surface hydrophobicity against O-xylene (33.9%), antimicrobial activity against various food borne pathogens (inhibition = 100%), antibiotic sensitivity following standard test methods suggested by various research workers.