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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Lily Nathalia
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Karakterisasi Protease Ekstraseluler Clostridium spp. T11-3 Loli Natalia; Lily Nathalia; Anja Meryandini
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 1 (2006): February 2006
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i1.2822

Abstract

Protease is one of the leather commercial enzymes which is widely used such in food processing, medicine and leather industry. Clostridium sp T11-3 was isolated from Tiu Jeruk River in Nusa Tenggara Barat. Sequence analysis of 16S rRNA indicated that Clostridium spp T11-3 was closely related to C. bifermentans. This isolate produced maximum protease activity after 18 hours of cultivation in liquid media. Protease of Clostridium spp 11-3 displayed maximum activity at pH 5 and 60oC with casein as substrate. In the presence of 1 mM divalent ion Mg2+ the enzym activity increased to 141 %, while others ion divalent (Ca2+, Zn2+, Cu2+, Fe2+, and Co2+) inhibited protease activity.
Co-Authors Anja Meryandini Loli Natalia