Phytochemical and antibacterial properties of sea cucumber (Muelleria lecanora) from Barrang Lompo Islands, Makassar South Sulawesi

Abstract

Barrang Lompo Island Waters is home for different species of marine biota of sea cucumber (Muelleria lecanora). Many sea cucumber species have been used as health supplements because they contain bioactive compounds that are beneficial to people in Indonesia. Given this, our study was designed to investigate the phytochemical, and antibacterial properties of crude acetone, methanol and hexane extract of sea cucumber using maceration extraction methods. The sea cucumber extract was prepared and the phytochemical profile was studied by analysing Gas Chromatography-Mass Spectrometry (GC-MS). Results showed that the extracts were a complex mixture of numerous compounds; many of which were present in trace amounts antioxidants and antimicrobial; hexadecanoic acid, methyl ester, 9-octadecenoic acid (z) -, methyl ester (stearic acid methyl ester), octadecanoic acid, methyl ester, 2-[(hexadecyloxy)methyl]oxirane, cholest5-en-3-yl acetate, ergosta-14,22-dien-3-ol, acetate,(3.beta.,5.alpha.,22e), 5,8,11,14- eicosatetraenoic acid, methyl ester, (all-z) epa/omega 3, pentacosane, hexatriacontane, and 9-hexadecenoic acid, methyl ester, (Z). The extract was also evaluated for activity against three pathogenic bacterial strains (Escherichia coli, Staphylococcus aureus and Salmonella) using the disc diffusion method. The extract exhibited clear zones of inhibition against the tested bacteria. Maximum inhibitory zone concentration values were demonstrated to be: Escherichia coli = 6.84 mm , Staphylococcus aureus = 7.22 mm, and Salmonella = 7.87 mm. These results revealed the significant potential of sea cucumber as a source of antioxidants and antimicrobial agents and also highlight the necessity of further purification and characterisation of solitary bioactive compounds for their prospective applications in pharmaceutical industries, food, and nutraceutical (food functional)

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