Integrated Biological and Chemical Investigation of Indonesian Marine Organisms Targeting Anti-Quorum-Sensing, Anti-Biofilm, Anti-Biofouling, and Anti-Biocorrosion Activities.
Novriyandi Hanif: Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia. ORCID
Jihan Azmi Miftah: Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia. ORCID
Henny Dwi Yanti: Tropical Biopharmaca Research Center, IPB University, Bogor 16128, Indonesia. ORCID
Emmanuel Tope Oluwabusola: Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3FX, UK. ORCID
Vira Amanda Zahra: Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia. ORCID
Nurul Farhana Salleh: Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore. ORCID
Binu Kundukad: Singapore Center for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, 60 Nanyang Drive, SBS-01N-27, Singapore 637551, Singapore. ORCID
Lik Tong Tan: Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore. ORCID
Nicole J de Voogd: Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands. ORCID
Nisa Rachmania: Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia. ORCID
Marcel Jaspars: Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3FX, UK. ORCID
Staffan Kjelleberg: Singapore Center for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, 60 Nanyang Drive, SBS-01N-27, Singapore 637551, Singapore. ORCID
Dedi Noviendri: Research Center for Pharmaceutical Ingredients and Traditional Medicine, BRIN Cibinong-Bogor, Bogor 16911, Indonesia. ORCID
Anggia Murni: Tropical Biopharmaca Research Center, IPB University, Bogor 16128, Indonesia. ORCID
Junichi Tanaka: Department of Chemistry, Biology and Marine Science, University of the Ryukyus, Okinawa 903-0213, Japan. ORCID
Microorganisms play a significant role in biofouling and biocorrosion within the maritime industry. Addressing these challenges requires an innovative and integrated approach utilizing marine natural products with beneficial properties. A comprehensive screening of 173 non-toxic EtOAc and H���O extracts derived from diverse marine organisms collected in Indonesian waters was conducted using a robust panel of assays. These included antimicrobial tests and classical biosurfactant assays (drop collapse and oil displacement), as well as anti-quorum-sensing (QS) and anti-biofilm assays. These screening efforts identified five active extracts with promising activities. Among these, EtOAc extracts of the marine tunicate cf. (0159-22e) and the marine sponge (0194-24c) demonstrated significant anti-biofouling activity against and anti-biocorrosion performance (mpy 10.70 �� 0.70 for cf. ; 7.87 �� 0.86 for 13.60 �� 1.70 for positive control Tetracorr CI-2915). Further chemical analyses of the active extracts, including LC-HR-MS/MS, MS-based molecular networking, and chemoinformatics, revealed the presence of both known and new bioactive compounds. These included tambjamines and polybrominated diphenyl ethers (PBDEs), which are likely contributors to the observed bioactivities. Subsequent investigations uncovered new anti-QS and anti-biofilm properties in synthetic and natural PBDEs - previously derived from . Among these, exhibited the most potent anti-QS activity, with an IC value of 15 ��M, while significantly reduced biofilm formation at a concentration of 1 ��M. This study highlights the potential of marine-derived compounds in addressing biofouling and biocorrosion challenges in a sustainable and effective manner.
106/IV/KS/11/2023, 41644/IT3/PT.01.03/P/B/2023, 1/PEE-2/PPK-DFRI/2022, and 7197/IT3.L1PT.01./Indonesia Endowment Fund for Education Agency (LPDP) and National Research and Innovation Agency (BRIN) of the Republic of Indonesia