Proceedings of the 7th International Conference on Biological Science (ICBS 2021)

Anti-Infective Properties of a Sea Cucumber Associated Actinobacteria Kocuria sp. HL 55

Authors
Joko Tri Wibowo1, *
1Research center for Biotechnology National Institute of Research and Innovation Agency (BRIN) Komplek CSC-LIPI Jln. Raya Bogor Km 46, Cibinong 16911, Bogor, Jawa Barat, Indonesia
*Corresponding author. Email: joko.tri.wibowo@brin.go.id
Corresponding Author
Joko Tri Wibowo
Available Online 2 May 2022.
DOI
10.2991/absr.k.220406.080How to use a DOI?
Keywords
Actinobacteria; Antibiotic; Antiviral; Sea cucumber
Abstract

“Antibiotics golden era” can end when resistant strains spread immensely. To find new anti-infective agents, we examined sea cucumber associated bacteria isolated from the intestinal part of the echinoderm Holothuria leucospilota. Partial identification using 16S rRNA gene Sanger sequencing revealed Kocuria Flava (99.21% sequence similarity). The ethyl acetate extract from liquid bacterial cultures has a MIC of 4.2, 8.3, and 67 µg/mL against Bacillus subtilis, Staphylococcus aureus, and Eschericia coli, respectively. The extract also showed antiviral activity against Hepatitis C Virus (HCV) with an infectivity value of 77.25 ± 3.13%. The bioactive fraction from the extract showed two peaks from two putative compounds. One peak showed m/z 1140.219 [M+H]+ were identified as putative kocurin. Another peak with m/z 1515.373 [M+H]+ was unidentified. The results showed that Kocuria sp. HL 55, a bacterium associated with H. leucospilota, potentially produces new bioactive compounds. Further analysis for instance extensive 1D and 2D NMR is needed to identify and to characterize the unidentified compound.

Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license.

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Volume Title
Proceedings of the 7th International Conference on Biological Science (ICBS 2021)
Series
Advances in Biological Sciences Research
Publication Date
2 May 2022
ISBN
978-94-6239-573-2
ISSN
2468-5747
DOI
10.2991/absr.k.220406.080How to use a DOI?
Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license.

Cite this article

TY  - CONF
AU  - Joko Tri Wibowo
PY  - 2022
DA  - 2022/05/02
TI  - Anti-Infective Properties of a Sea Cucumber Associated Actinobacteria Kocuria sp. HL 55
BT  - Proceedings of the 7th International Conference on Biological Science (ICBS 2021)
PB  - Atlantis Press
SP  - 565
EP  - 567
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.220406.080
DO  - 10.2991/absr.k.220406.080
ID  - Wibowo2022
ER  -