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논문명(한글) In Vitro Evaluation of Probiotic, Antimicrobial, and Antioxidant Properties of a Novel Lactobacillus plantarum Strain Isolated from Medicago sativa
논문명(영문) In Vitro Evaluation of Probiotic, Antimicrobial, and Antioxidant Properties of a Novel Lactobacillus plantarum Strain Isolated from Medicago sativa
예산사업명 축산시험연구
연차연구세부과제 저 수분 사일리지의 품질향상 기술개발
성과주관부서 국립축산과학원 축산자원개발부 초지사료과
품목코드 축산 / 조사료 / 사료작물 / 기타 사료작물
학술지명 International Journal of Agriculture and Biology 주저자 스리고팔람스리세스하람(국립축산과학원)
연도 2018 성과적용일 2018년12월
In fermented food production, lactic acid bacteria (LAB) are the most commonly used organism, as they have been extensively used as probiotics since the last decade. In order to identify a new starter culture, we isolated and characterized LAB from alfalfa (Medicago sativa) forage, then evaluated their potential probiotic properties. Among ten isolates, one, namely KCC-34, showed significant cell growth and antifungal activity, and was thus selected for further characterization. The biochemical, physiological, and molecular (16S rRNA sequencing) properties of the selected isolate confirmed that the isolate is Lactobacillus plantarum KCC-34. The isolated strain showed a more significant susceptibility against various commonlyused antibiotics. L. plantarum KCC-34 exhibited greater antibacterial activity against Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, and Pseudomonas aeruginosa, and had strong antifungal activity against Aspergillus clavatus, Penicillium chrysogenum, and A. flavus. In addition, the L. plantarum KCC-34 strain also had the advantages of cell surface hydrophobicity and aggregation properties. Further, the L. plantarum KCC-34 strain proved its ability to survive in the stomach and in the small intestine. Besides, the new L. plantarum KCC-34 strain showed good DPPH free radical scavenging activity. Taken together, these features suggest that the novel L. plantarum KCC-34 can be potentially useful as a starter culture in fermented food production
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