Bài viết Phân lập và xác định một số đặc tính sinh học của vi khuẩn lactic từ dưa cải muối chua tại Đà Lạt trình bày việc phân lập chủng vi khuẩn lactic; Khả năng chịu acid và dung nạp muối mật; Định danh chủng vi khuẩn LDL 19 bằng sinh học phân tử; . | TNU Journal of Science and Technology 227 10 243 - 251 ISOLATION AND DETERMINATION OF BIOLOGICAL CHARACTERISTICS OF LACTIC ACID BACTERIA FROM PICKLED SAUERKRAUT IN DA LAT Le Thi Loan1 Nguyen Thi Tam1 Nguyen Thi Anh Thu1 Nguyen Huynh Kim Thoa1 Tran Kim Diep2 Vo Hoai Hieu1 1Yersin University 2Tay Nguyen Institute for Scientific Research - VAST ARTICLE INFO ABSTRACT Received 27 4 2022 Lactic acid bacteria strains LAB were isolated from sauerkraut without causing hemolysis they were screened and identified for their tolerance to Revised 20 7 2022 acids bile salts phenols pathogenic bacteria and antioxidants. The results Published 20 7 2022 obtained contained seven strains of bacilli Gram-positive CaCO3- degrading negative for catalase indole oxidase and not hemolytic which KEYWORDS were used to continue with the research. The LDL19 strain was found to have superior properties compared to other strains when resisting Pickled sauerkraut Escherichia coli Pseudomonase aerigunosa and Salmonella sp. In Da Lat addition LAB also has resistance to bile salts and acid at pH levels of Limosilactobacillus fermentum and pH reaching and respectively after 3 hours as well as phenol tolerance at and respectively after 24 Probiotic hours as well as DPPH free radical scavenging over 40 . The bacteria Lactic acid bacteria LDL19 has been identified as Lactobacillus fermentum LDL19 which is sensitive to ampicillin penicillin chloramphenicol antibiotics and moderately sensitive to amikacin antibiotic as well as a resistance to gentamycin streptomycin vancomycin antibiotics. This indicates that L. fermentum LDL19 is considered as one of the bright candidates to be used in the application of dietery supplements. PHÂN LẬP VÀ XÁC ĐỊNH MỘT SỐ ĐẶC TÍNH SINH HỌC CỦA VI KHUẨN LACTIC TỪ DƯA CẢI MUỐI CHUA TẠI ĐÀ LẠT Lê Thị Loan1 Nguyễn Thị Tâm1 Nguyễn Thị Anh Thư1 Nguyễn Huỳnh Kim Thoa1 Trần Kim Diệp2 Võ Hoài Hiếu1 1 Trường Đại học Yersin Đà Lạt .