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All Journal SAINSMAT bionature SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Andi Mu'nisa Syamsu
Universitas Negeri Makassar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Education Immunology & microbiology Medicine & Pharmacology Physics Public Health Veterinary

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Antioxidant Activities and Bioactive Compound in The Extract of Lobophytum sp. Andi Mu'nisa Syamsu
bionature Vol 24, No 1 (2023): April
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v24i1.44786

Abstract

This study is a descriptive exploratory research that aims to know the activity of soft coral Lobophytum sp. extract as an antioxidant. Sample extraction was done by maceration using methanol. Viscous extract obtained was then partitioned using n-hexane until gained methanol and n-hexane fraction. The chemical compositions of the methanol extract of Lobophytum sp were investigated using Gas chromatography-Mass spectrometry. The yield result of soft coral Lobophytum sp. extract is 2,59%. The weight of extract partition result were methanol fraction 8,76 g and n-hexane fraction 1,02 g. Antioxidant activity test using the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay. Ascorbic acid was also used as positive antioxidant control. The percentage of inhibition and IC50 were measured. Antioxidant activity test which gains the best antioxidant activity is methanol fraction then followed by n-hexane fraction, both showed DPPH free radical 50% can be inhibited the activity with IC50 rate in a sequence 16,93 ppm and 30,93 ppm. GC-MS analysis, 50 kinds of chemical composition are identified in the Lobophytum sp. The results showed that the soft coral extracts of Lobophytum sp. has antioxidant activity.Keywords: soft coral (Lobophytum sp), GC-MS, fractions metahol and hexane
DIVERSITY OF SEA URCHINS ON THE BEACHSAMBOANG, BULUKUMBA DISTRICT Andi Mu'nisa Syamsu
bionature Vol 24, No 2 (2023): Oktober
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v24i2.52523

Abstract

The aim of this research is to determine the diversity of sea urchins found in the waters of Samboang Beach, Bulukumba Regency. This research method uses a line transect method with a size of 1 m x 1 m. The data obtained was then identified, then analyzed using the diversity index (H'), evenness index (C) and dominance index (D). The results show that the number of sea urchin species found on Samboang Beach, Bulukumba Regency is 4 species consisting of Echinometra oblonga, Echinometra mathaei, Echinometra viridis, and Diadema setosum. The sea urchin diversity category is classified as medium, namely 1.25. The dominance index is relatively low, namely 0.31, and the evenness index is relatively stable, namely 0.903.Keywords: diversity, dominance, evenness, sea urchins
Co-Authors A. Muflihunna Adlillah Triastuti Andi Faridah Arsal