Antioxidant and antibacterial activities in 21 species of Indonesian sea cucumbers was written by Nugroho, Aji;Harahap, Iskandar Azmy;Ardiansyah, Ardi;Bayu, Asep;Rasyid, Abdullah;Murniasih, Tutik;Setyastuti, Ana;Putra, Masteria Yunovilsa. And the article was included in Journal of Food Science and Technology in 2022.Application of 1731-94-8 The following contents are mentioned in the article:
Sea cucumbers are marine organisms with uses in food, cosmetics, and medicine. This study aimed to identify Indonesian sea cucumbers with high antioxidant and antibacterial activities. Twenty-one sea cucumber species were used for this study. Antioxidant capacity was evaluated using the 2,2-diphenyl-β-picrylhydrazine assay. Antibacterial activity was assessed using the disk diffusion assay, whereas the resazurin-based assay was employed to determine the min. inhibitory concentration (MIC) and min. bactericidal concentration (MBC). Volatile compounds possibly related to the biol. activity of sea cucumbers were analyzed via gas chromatog.-mass spectrometry (GC-MS). Holothuria atra had the strongest antioxidant capacity (IC50 = 14.22 ± 0.87 μg μL-1). Stichopus vastus displayed the best antibacterial activity against Staphylococcus aureus, whereas Stichopus ocellatus extract was most potent against Vibrio cholerae. Holothuria albiventer, which controlled Bacillus subtilis most effectively while also being active against S. aureus and V. cholerae, was the optimal antimicrobial species. H. albiventer and Actinopyga echinites inhibited B. subtilis growth at 12.5 μg μL-1. The MBC tests indicated that the antibacterial activities of sea cucumbers at the MIC were bacteriostatic, rather than bactericidal, in nature. GC-MS anal. uncovered long-chain fatty acids that might be associated with the antibacterial activities of sea cucumbers. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Application of 1731-94-8).
Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application of 1731-94-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics