Nurhasanah, Nurhasanah and Heri Satria, Heri Satria CHARACTERIZATION OF SELECTED PROTEOLYTIC BACTERIA FROM DOMESTIC WASTE. In: International Conference on Biology and Applied Science, 20-21 Maret 2019, Malang. (Unpublished)

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Abstract

Compost is a kind of fertilizer which is produced by synergism of various microorganism that produces hydrolytic enzyme to degrade the organic material as a substrat. The purpose of this research are to characterize some protelotytic bacteria that live in the domestic waste at composting process. Here we report, five selected proteolytic bacteria were screened using the clear zone method. The five isolates were PKMA4 and PKMG2 from mesofilic phase, PKTB3 and, PKTD4 from termophilic phase and PKPG2 from maturation phase of compost. The results of measurement of protease activity for five isolates at the optimum growth time obtained PKMA4 = 0.1716 U/mg, PKMG2 = 0.197 U/mg; PKTB3 = 0.333 U/mg; PKTD4 = 0.167 U/mg and PKPG2 = 0.207 U/mg. Based on these results concluded that PKTB3 isolates from thermophilic phase have better proteolytic activity than other isolates. Key Words : proteolytic, domestic waste, compost, protease

Item Type: Conference or Workshop Item (Poster)
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia
Depositing User: Nurhasanah Nurhasanah Husin
Date Deposited: 14 May 2019 08:29
Last Modified: 14 May 2019 08:29
URI: http://repository.lppm.unila.ac.id/id/eprint/11859

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