Please use this identifier to cite or link to this item: http://repository.ipb.ac.id/handle/123456789/66187
Title: Mekanisme Antimikroba Plantaricin dari Lactobacillus plantarum IIA-1A5 Asal Daging Sapi Lokal terhadap Staphylococcus aureus.
Authors: Arief, Irma Isnafia
Budiman, Cahyo
Yuneni, Astri
Keywords: Bogor Agricultural University (IPB)
Staphylococcus aureus.
plantaricin IIA-1A5
Lactobacillus plantarum IIA-1A5
disruption cells
antimicrobial
Issue Date: 2013
Abstract: Plantaricin IIA-1A5 is a peptide compound produced by Lactobacillus plantarum IIA-1A5 lactic acid bacteria displaying antimicrobial activities. The purpose of this study is to analyze the mode of action of plantaricin and Staphylococcus aureus disruption by plantaricin IIA-1A5 through testing antimicrobial activities. Results showed the molecular weight of plantaricin IIA- 1A5 was 6.41 kDa. Based on the antagonistic test using paper disc method, plantaricin IIA-1A5 have the diameter of growth inhibition zone to S. aureus larger than that of control (P<0.05). Ability of plantaricin IIA-1A5 to distrupt cell membrane same as triton X-100, but better than that of ethanol, chloroform, methanol, hexana, and SDS (P<0.05). Based on cell leakage test, S. aureus suspension treated with plantaricin displayed higher absorbance value compared to that of controls (P<0.05). SEM analysis showed remarkable cell leakage of S. aureus by plantaricin IIA-1A5.
URI: http://repository.ipb.ac.id/handle/123456789/66187
Appears in Collections:UT - Animal Production Science and Technology

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