Laila, Aspita and Setiawan, Andi and Widyastuti, Widyastuti and Fadhilah, M. Rizky and Setiawan, Andi and Juliasih, Ni Luh Gede Ratna and Setiawan, Wawan Abdullah and Apriliana, Ety and Ahmadi, Peni and Arai, Masayoshi and Hendri, John Exploration and Biorefinery Antimicrobial Agent through Solid State Fermentation from Indonesia’s Marine Actinomycetes. Fermentation. ISSN 23115637

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Abstract

This study aimed to obtain novel bioactive compounds derived from actinomycetes as�sociated with marine biota from the coast of Indonesia. Actinomycetes have been identified as a potential source of bioactive compounds through enzymatic fermentation. In order to obtain bioactive compounds from the results of the biorefinery process, cultivation was performed by solid state fermentation (SSF) on shrimp shell waste medium. The inhibitory activity against pathogenic microorganisms was measured based on the optical density of samples from Gorontalo and Buleleng, Bali, Indonesia. Six isolates had a clear zone as an indicator of the chitinase activity of chitinase en�zymes. The SSF extract, obtained after 14 days of incubation, was assayed for its antimicrobial activity by the 96-well plate microtiter method. Among the six isolates, isolate 19B19A1 had antibacterial and antifungal activity against Staphylococcus aureus and Malassezia globosa, respectively. DNA analysis indicated that the 19B19A1 isolate was Streptomyces tritolerans 19B19A1 and that its extract contained an alkaloid component that played a role in antimicrobial activity. These results indicate that shrimp shells can be used as a nutrient-rich alternative culture medium for actinomycetes. This study is expected to become a source of information related to biorefinery, especially in the exploration of bioactive compounds produced by actinomycetes. Keywords: actinomycetes; antibacteria; antifungi; bioactive compound; shrimp shell

Item Type:	Article
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Divisions:	Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia
Depositing User:	Prof Andi Setiawan
Date Deposited:	02 May 2023 09:02
Last Modified:	02 May 2023 09:02
URI:	http://repository.lppm.unila.ac.id/id/eprint/50955

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