Biodiversitas Journal of Biological Diversity
Vol. 20 No. 8 (2019)

Molecular identification 16S rRNA gene of active proteolytic lactic acid bacteria (LAB) isolated from kelengkeng (Dimocarpus longan) fruit

Habibi Hidayat (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada. Jl. Sekip Utara 15, Yogyakarta 55720, Indonesia)
WINARTO HARYADI (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada. Jl. Sekip Utara 15, Yogyakarta 55720, Indonesia)
SABIRIN MATSJEH (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada. Jl. Sekip Utara 15, Yogyakarta 55720, Indonesia)
TRI JOKO RAHARJO (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada. Jl. Sekip Utara 15, Yogyakarta 55720, Indonesia)



Article Info

Publish Date
22 Jul 2019

Abstract

Abstract. Hidayat H, Haryadi W, Matsjeh S, Raharjo TJ. 2019. Molecular identification 16S rRNA gene of active proteolytic lactic acid bacteria (LAB) isolated from kelengkeng (Dimocarpus longan) fruit. Biodiversitas 20: 2222-2228. Various fermentation food involves microorganisms, especially Lactic Acid Bacteria (LAB) which has beneficial properties for fermented food. The present study aims to do identification and characterization of active proteolytic LAB from kelengkeng (Dimocarpus longan), a commonly found fruit in South East Asia. From ten LAB isolates, isolates K7 and K8 appeared as basil shape based on Gram staining and were chosen for further examination. The molecular identification of these selected isolates were investigated from the 16S rRNA analysis using universal primer 27F and 1525R. The K7 and K8 isolates showed resistance ability towards acidic environment (pH 2.0) and were examined for protease enzyme screening resulting 7.5 and 6 to clear zone, which was 17 and 12 mm. The result of the molecular characterization from the two isolates indicated that isolate K7 was identified as Leuconostoc mesenteroides subsp suionicum strain LT-38 while isolate K8 was identified as Leuconostoc mesenteroides strain C305.16.

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Journal Info

Abbrev

biodiv

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

The Biodiversitas Journal was first published in 2000 by the Department of Biology, FMNS, Universitas Sebelas Maret, Surakarta, Indonesia, then in 2006 it was co-published by the Society for Indonesian Biodiversity and that department; since 2017 it was also hosted by Smujo. From 2003-2012 it was ...