UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL SPONS (Leucetta chagosensis) YANG DIKOLEKSI DARI KEPULAUAN MANTEHAGE
DOI:
https://doi.org/10.35799/pha.10.2021.34027Abstract
ABSTRACT
Sponges are not only rich in secondary metabolites, but also have the ability to synthesize various compounds, such as alkaloids, peptides, and terpenoids. These compounds are reported to have activity as antitumor, antifungal, antibacterial, and also as an antioxidant. This study aims to determine the antioxidant activity of the marine animal sponge Leucetta chagosensis. This research is a laboratory experiment with testing of the ethanol extract of sponge Leucetta chagosensis with the DPPH [1,1-diphenyl-2-picrylhydrazyl method] to analyze antioxidant activity using a UV-Vis spectrophotometer with a wavelength of 517 nm. The results of this study indicate that the ethanol extract of the sponge Leucetta chagosensis from Mantehage Island has antioxidant activity in each concentration of the test. The greatest antioxidant levels were found in the sponge Leucetta chagosensis with a concentration of 0.6 mg / L, reaching a percentage of 57.23%..
Keywords: Antioxidants, DPPH, Leucetta chagosensis, Mantehage Islands
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ABSTRAK
Sponge tidak hanya kaya akan metabolit sekunder, tapi juga memiliki kemampuan untuk menyintesis berbagai macam senyawa, seperti alkaloid, peptide, dan terpenoid. Senyawa-senyawa tersebut dilaporkan memiliki aktifitas sebagai antitumor, antijamur, antibakteri, dan juga sebagai antioksidan. Penelitian ini bertujuan Untuk mengetahui aktivitas antioksidan dari hewan laut sponge Leucetta chagosensis. Penelitian ini merupakan eksperimental laboratorium dengan pengujian terhadap ektrak etanol sponge Leucetta chagosensis dengan metode DPPH [1,1-difenil-2-pikrilhidrazil] untuk menganalisis aktivitas antioksidan dengan menggunakan spektrofotometer UV-Vis dengan panjang gelombang 517 nm. Hasil penelitian ini menunjukkan bahwa ekstrak etanol sponge Leucetta chagosensis dari Pulau Mantehage mempunyai aktivitas antioksidan disetiap konsentrasi pengujian. Kadar antioksidan yang paling besar terdapat pada sponge Leucetta chagosensis dengan konsentrasi 0,6 mg/L dengan mencapai persentase 57,23% .
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Kata kunci: Antioksidan, DPPH, Leucetta chagosensis, Pulau Mantehage
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