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All Journal Biology, Medicine, & Natural Product Chemistry MPI (Media Pharmaceutica Indonesiana) Journal of Islamic Pharmacy The Indonesian Biomedical Journal Medfarm: Jurnal Farmasi dan Kesehatan Jurnal Ilmiah Farmasi Akademi Farmasi Jember Ensiklopedia Research and Community Service Review Dental Agromedis
Dewi Riskha Nurmalasari
Akademi Farmasi Jember
Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Electrical & Electronics Engineering Health Professions Immunology & microbiology Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Identification of Lactic Acid Bacteria (LAB) Consortium from Tempeh Jember Based on 16S rRNA Gene Sequences as Potential Probiotic Candidates Azizah, Siti Nur; Rosida, Rosida; Febiaocti, Rizka Yolanda; Nurmalasari, Dewi Riskha; Sipriyadi, Sipriyadi
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.1339-1346

Abstract

The development of pharmaceutical raw materials as local Indonesian probiotic concentrates requires attention to strain identity accuracy, safety, and health potential. This is due to the high potential of probiotics in preventing and addressing various health disorders from infancy to old age. Previous research successfully obtained lactic acid bacteria (LAB) isolates as probiotic candidates from tempeh produced in Jember, and preclinical testing showed that administering a consortium of five LAB isolates at a dose of 10^8 CFU/ml to BALB/c mice was an effective treatment for further application. This study aimed to perform molecular identification of the consortium of five LAB isolates from tempeh in Jember, East Java, based on 16S rRNA gene sequences. The consortium includes TA1, TB1, TK1, TK2, and TK4 isolates. This study used both qualitative descriptive and quantitative methods. Identification based on the 16S rRNA gene to determine LAB species strains involved bacterial genomic DNA isolation, amplification of the bacterial 16S rRNA gene, PCR product analysis, and phylogenetic identification and analysis. DNA amplification results showed that the consortium of five LAB isolates produced DNA fragments with bands of approximately 1300 bp. BLAST-N and phylogenetic analysis of the 16S rRNA gene showed that TB1 had 99.05% similarity with Kosakonia cowanii JCM 10956, TA1 had 99.46% similarity with Lactiplantibacillus plantarum JCM 1149, TK1 had 99.38% similarity with Lactiplantibacillus pentosus 124-2, TK2 had 96.86% similarity with Pseudomonas fluvialis ASS-1, and TK4 had 99.38% similarity with Lactiplantibacillus plantarum NBRC 15891. TA1, TB1, and TK4 were identified as non-pathogenic LAB strains, while TK1 and TK2 were not classified as LAB. 
Co-Authors Afriani, Resa Try ARTARINI, ANITA CATUR RIANI DEBBIE SOEFIE RETNONINGRUM Diyan Ajeng Rossetyowati Dwijayanti, Anies Rahman Eryani, Mikhania Christiningtyas Febiaocti, Rizka Yolanda Hadi Barru Hakam Fajar Siddiq Handojo, Kukuh Judy Mardani, Alya Eka Dhyra Maulani, Dyan Nuraini, Fathiyah Rizki Permanasari, Silmi Citra Rashati, Dewi Raymond R. Tjandrawinata Rohma, Tamara Aisa Rosida Rosida Sipriyadi Siti Nur Azizah, Siti Nur Siti Rohmah Fadilah Yanindra, Yuriko Titan