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All Journal Jurnal Pengolahan Hasil Perikanan Indonesia Microbiology Indonesia BERITA BIOLOGI Majalah Farmasi dan Farmakologi (Trends in Pharmacy and Pharmaceutical Sciences) Annales Bogorienses
APON ZAENAL MUSTOPA
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology

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Journal : Microbiology Indonesia

 1 
Diversity of Lactic Acid Bacteria Isolated from Indonesian Traditional Fermented Foods APON ZAENAL MUSTOPA; FATIMAH FATIMAH
Microbiology Indonesia Vol. 8 No. 2 (2014): June 2014
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.524 KB) | DOI: 10.5454/mi.8.2.2

Abstract

The diversity of lactic acid bacteria was evaluated from Indonesian fermented foods such as dadih (buffalo fermented milk), tempoyak (fermented durian), bekasam (fermented meat), and tape ketan (fermented glutinous rice). Lactic acid bacteria were enumerated using selective media and characterised based on a genotypic methods such as rep- PCR and RAPD-PCR, as well as 16S rRNA gene sequencing of representative strains. Forty-six colonies had successfullybeen isolated from Indonesian fermented foods. The great majority of these colonies originated from dadih (43.48%), tempoyak (39.13%), bekasam (13.04%) and tape (4,3%). The 46 isolates were characterised based on a genotypic methods such as RAPD and rep-PCR as well as 16S rRNA gene sequencing of representative strains. The rep-PCR result yielded seven clusters (I-VII) at a similarity level of 75-88% and RAPD-PCR used LB2 primer, M13 primer and primer A, B, C. The RAPD result using LB2 primer yielded eight clusters (I-VIII) at a similarity level of 82-91%. Identification using 16S rRNA showed that the majority strains as Lactobacillus plantarum, Lactobacillus fermentum and Pediococcus pentosaceus strains.
Identification and characterization of virulence factor of several Indonesian Xanthomonas oryzae pv. oryzae FATIMAH FATIMAH; APON ZAENAL MUSTOPA; IQBAL KUSNANDARSYAH
Microbiology Indonesia Vol. 8 No. 3 (2014): September 2014
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.262 KB) | DOI: 10.5454/mi.8.3.3

Abstract

Xanthomonas oryzae pv. oryzae (Xoo) is the bacterial causative agent of leaf blight in rice (Oryza sativa L.), the most serious bacterial disease of rice in many rice growing areas worldwide. This study aimed to identify and characterize several virulence factors of seven Xoo isolates from Yogyakarta, West Java, and West Sumatera. The identification of Xoo using 16S rRNA confirmed high homology to Xanthomonas oryzae pv. oryzae PXO99A and revealed three groups. The first group was Xoo93229, the second group containing Xoo1110, Xoo1122, Xoo1130, Xoo7624 and Xoo8024 as the same cluster with PXO99A and the third group was KACC10331 and MAFF311018. The amounts of exopolysaccharide (EPS) and cellulase produced were varying depending on the Xoo isolates. The EPS were produced more by isolate Xoo1130, Xoo1122 and Xoo8024. All tested isolates revealed similar cellulase activity except for isolate Xoo8024. The pathogenicity assay among the Xoo isolate showed that all tested isolates were virulent except Xoo7624. The in planta assay revealed that the tested isolates have multiplied and continued increasing the population size except for Xoo1110 and Xoo7624. High yield of EPS, cellulase activity, more virulence, and increasing population size revealed from isolate Xoo1130 and Xoo1122.
Inhibitory activity of Lactobacillus plantarum U10 isolated from Tempoyak (fermented durian) Made in Indonesia against Salmonella typhi SOGANDI SOGANDI; APON ZAENAL MUSTOPA; I MADE ARTIKA; BUGI RATNO BUDIARTO
Microbiology Indonesia Vol. 9 No. 2 (2015): June 2015
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1138.504 KB) | DOI: 10.5454/mi.9.2.5

Abstract

Lactobacillus plantarum U10 produced bacteriocin U10 which was isolated from a traditionally fermented food “tempoyak” from Sumatera Island in Indonesia. Production of the bacteriocins started at early exponential phase and reached maximum level at early stationary phase. Furthermore, plantaricins U10 was purified by ammonium sulphate precipitation followed by gel filtration chromatography. L. plantarum U10 produced two bacteriocins with a molecular mass of approximately 4.5 and 9.8 kDa by SDS-PAGE.  The mode of action of plantaricins U10 was identified as bactericidal agents against Salmonella typhi ATCC25241 as proven by CFU counting and SEM micrographs that showed differences in cell structures between treated cells and the non-treated control. SEM examination also confirmed structural destruction of membrane cells integrity and considerable morphological alteration of S.typhi.
Co-Authors Anugerah BUGI RATNO BUDIARTO Fatimah FATIMAH FATIMAH Fatimah Fatimah Habibie Herman Irawan Hudaida Syahrumsyah I MADE ARTIKA Ika Sari Kusumawati IQBAL KUSNANDARSYAH Jabal Rahmat Haedar Melki . Muhammad Raihan Nurhasni Hasan Nurlaili Ekawati Sitti Nur Fatimah Sogandi Sogandi Subehan Urnemi Urnemi