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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Pharmaceutical Sciences and Research (PSR)
Putra, Masteria Yunovilsa
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Screening of Antibacterial and Antioxidant Activity from the Soft Corals Sinularia sp. and Sarcophyton sp. Origin Palu Bay, Central Sulawesi, Indonesia Tanod, Wendy Alexander; Dewanto, Didit Kustantio; Ndobe, Samliok; Riyadi, Putut Har; Putra, Masteria Yunovilsa
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 14, No 2 (2019): August 2019
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5379.021 KB) | DOI: 10.15578/squalen.v14i2.394

Abstract

This study aimed to evaluate the potential antibacterial and antioxidant activities of Sinulariasp. and Sarcophyton sp. from the Palu Bay, Central Sulawesi, Indonesia. Soft corals were identified as Sinulariasp. (SC1), Sinularia sp. (SC2), andSarcophytonsp. (SC3). Antibacterial activity was examined using agar diffusion well method. Antioxidant activity was measured by the DPPH radical scavenging method. The samples were macerated in MeOH: DCM. The crude extracts were partitioned with DCM, EtOAc, and BuOH. The crude extract of Sinulariasp. (SC2) showed a very strong antibacterial activity as it was able to inhibit the growth of Staphylococcus aureusand Escherichia coliup to 10 mg/mL. Sinularia sp. (SC1) crude extract showed strong activity againstS. aureus, whereas it showed moderate against E. coli.Sarcophyton sp. (SC3) crude extract showed moderate activity against S. aureus, whereas it showed weak against E. coli. The partition fractions of the three soft coral extracts had the potential to be a potent antioxidant agent.
Identification and Evaluation of Antibacterial Compounds from the Vibrio sp. associated with the Ascidian Pycnoclavella diminuta Dermawan, Abdurraafi’ Maududi; Julianti, Elin; Putra, Masteria Yunovilsa
Pharmaceutical Sciences and Research
Publisher : UI Scholars Hub

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This study aims to obtain secondary metabolites that have antibacterial activity from bacteria endophytic of ascidian Pycnoclavella diminuta collected from the coast of Bitung, North Sulawesi, Indonesia. The research was started with screening antibacterial activity of six bacteria isolated from P. diminuta. The active bacteria were selected for identification using standard biological molecular method and further fermentation to produce secondary metabolites. The isolation of secondary metabolites was conducted by various chromatography method and then selected fraction was based on the antibacterial activity from bioautography results. The result showed that the active isolate by coding M2.Tnk.Bt 5.10-3.2 was identified as Vibrio sp. The potential active fraction was further sub-fractionated by HPLC semi-preparative and each of these sub-fractions was tested against Staphylococcus aureus, Bacillus cereus, Enterococcus faecalis, Eschericia coli, and Vibrio cholerae. The test results showed that all 17 sub-fractions were active against Gram-positive bacteria S. aureus and B. cereus, and only one sub-fraction (SFr 2) showed antibacterial activity against E. faecalis. Whereas in Gram-negative bacteria, 2 sub-fractions (SFr 12 and SFr 13) showed antibacterial activity against E. coli and 12 sub-fractions active against V. cholerae. GC-MS analysis of the SFr 2 sub-fraction showed the presence of fifteen phytochemical constituents with a major compound Pyrrolo [1,2-a] pyrazine-1,4-dione, hexahydro-3- (2 methylpropyl).
Antimicrobial and Cytotoxic Properties of the Ascidians Lissoclinum patella, Oxycoryna fascicularis, Didemnum molle and Botryllus schlosseri Karim, Firmansyah; Putra, Masteria Yunovilsa; Hadi, Tri Aryono; Abrar, Muhammad
Pharmaceutical Sciences and Research
Publisher : UI Scholars Hub

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Abstract

The aim of this research is to investigate antimicrobial and cytotoxic activity from Indonesian ascidians. Extracts prepared from the Indonesian ascidians Lissoclinum patella, Oxycoryna fascicularis, Didemnum molle and Botryllus schlosseri were assessed for anti-microbial and cytotoxic properties. Antibacterial activity of the extracts was tested against two Gram-positive bacteria, viz. Bacillus subtilis ATCC 6633 and Staphylococcus aureus ATCC 25923, and three Gram-negative bacteria, viz. Escherichia coli ATCC 25922, Vibrio cholerae ATCC 14035 and Pseudomonas aeruginosa ATCC 101454 using the disk diffusion test. Antifungal activity was also tested against Candida albicans ATCC 10231 and Aspergillus niger ATCC 16404. The minimum inhibitory concentrations (MICs) of potential ascidian extracts were determined by the microdilution technique. Cytotoxicity of the extracts was assessed using the brine shrimp lethality bioassay. By comparing the inhibition zones in the disk diffusion test, the most active anti-bacterial activity against Gram-positive bacteria (S. aureus and B. subtilis) was found in the crude extracts of Oxycoryna fascicularis and Didemnum molle. Lissoclinum patella extract showed the highest activity against the Gram-negative bacteria E. coli and V. cholerae. The LC50 values of the crude extracts of Lissoclinum patella, Didemnum molle, Botryllus schlosseri, and Oxycoryna fascicularis were 74.3, 97.2, 114.7 and 132.9 μg/ml, respectively. In our study, the most promising species for anti-microbial and cytotoxic properties are Lissoclinum patella and Didemnum molle.
Co-Authors Dermawan, Abdurraafi’ Maududi Dewanto, Didit Kustantio Julianti, Elin Karim, Firmansyah Muhammad Abrar Putut Har Riyadi Samliok Ndobe Tri Aryono Hadi Wendy Alexander Tanod