POTENSI BAKTERI ASAM LAKTAT DALAM MENGHASILKAN BAKTERIOSIN SEBAGAI ANTIMIKROBA DAN PENGUKURAN BERAT MOLEKULNYA DENGAN SDS-PAGE DARI ISOLAT FERMENTASI KAKAO
DOI:
https://doi.org/10.25077/jrk.v1i2.149Abstract
ABSTRACT
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Lactic acid bacteria (LAB) were isolated from of cocoa beans fermentation Forestero variety from West Sumatera, that were eleven isolates. The isolates were tested to antimicrobial activity against pathogenic bacteria E.coli NBRC 14237, Staphylococcus aureus NBRC 13276, Bacillus subtilis BTCCB 612, listeria m. dan S. Typhii. Results the research showed that, isolates had inhibition zone to pathogenic bacteria, that were 7 mm till 12 mm at 48 hours observation. R2.4 isolate was most potential to inhibition zones growth pathogenic bacteria, that was 11mm till 12 mm to five pathogens. R2.4 isolates was the highest to against pathogenic bacteria (Bacillus subtilis BTCCB, Listeria monocytogenesis and Staphylococcus aureus NBRC) had inhibition zones, that was 12.00 mm till 48 hours. Listeria monocytogenesis had been known as pest bacterium of food born, so that R2.4 isolate can be used as food biopreservative. Crude of R2.4 isolate molecular weight was 10 kDa by SDS-PAGE.Â
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Key words: Lactic acid bacteria, Antimicrobial activity, SDS-PAGE, Cocoa fermentation and food biopreservativeÂ
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L. Seppo, T. Jauhiainen, T. Poussa, and R. Korpela, A fermented milk high in bioactive peptides has a blood pressure-lowering effect in hypertensive subjects. American Journal of Clinical Nutrition, 77, 326-330 (2004)
S. Taylor, Advances in Food and Nutrition Research, Vol. 50. Academic Press. ISBN 978-0-12-016450-9 (2004).
H.G. Fleet, The Microbial Ecology of Cocoa Bean Fermentation in Indonesia. Food Science and Technology School of Chemical Science University of New South Wales, Sidney. Australia (2003).
J. Serkedjieva, S. Danova, L. Ivanova, Antiinfluenza virus activity of a bacteriocin produced by Lactobacillus delbrueckii. Applied Biochemistry and Biotechnology 88: 285-298 (2000).
M.B. Wachsman, Enterococin CRL35 inhibits the last stage of HSV-1 and HSV-2 replication in vitro. Antiviral Research 58: 17-24 (2003)
Todorov, An antibacterial and antiviral peptide produced by Enterococcus mundtii ST4V isolated from soya beans. Int. J. of Antimicrobial Agents 25: 508-513 (2005).
S. Sumaryati dan E. Purwati, Peranan Pangan Probiotik Untuk Mikroba Patogen dan Kesehatan, Universitas Andalas Padang (2006).
J. J. Leisner, G. Rusul, B. W. Wee, H. C. Boo, and K. Mohammad, Microbiology of Chili Bo, A popular Malaysian food ingredient. Journal of Food Protection. 60:1235-1240 (1997).
De Man., J. C. Rogosa, M. E. Sharpe, A medium for the cultivation of lacto- bacilli. J. Appl.Bacteriol., 23, 130-135 (1960).
A. Mustopa, Colection Protocol Laboratorium Biotechnology and Virology Moleculer. Biotechnology Research Center. LIPI. Bogor (2007).
H. Holo, Nilssen, Nes IF, Lactococcin A, a new bacteriocin from Lactococcus lactis Subsp. cremoris: isolation and characterization of the protein and its gene. Journal of Bacteriology; 3879-87 (1991)
U.K. Laemmli, Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature, 277: 680- 685 (1970.
E. Purwati, Molecular Chacarcterization of Listeria spp. Isolated from Beef, Chicken and Fermented Fish in Malaysia (2003).
Kiran-kumar, P.V. Badarinath, P.M. Halami, Isolation of anti-listerial bacteriocin producing Lactococcus lactis CFR-B3 from Beans (Phaseolus vulgaris). The Internet Journal of Microbiology. Volume 6 Number 1 (2009).
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