@article {2038, title = {Metabolite Profiling of Compounds from Sargassum polycystum using UPLC-QToF-MS/MS}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {June 2023}, pages = {321-333}, type = {Research Article}, chapter = {321}, abstract = {

Background: There are many types of seaweed that have high economic value. Brown seaweed (Sargassum polycystum) can be used as a raw material in the industry and as a medicinal plant. Maintaining the quality of a compound requires an analytical method that can identify the diversity of metabolome profiles. Objective: This investigation seeks to discover the metabolite profile of S. polycystum from Sumenep, Madura Island, Indonesia, utilizing the UPLC-QToF MS/MS equipment. Materials and Methods: The extract was further fractioned using n-hexane, ethyl acetate, and water. The metabolite profiling of extract and fractions used the UPLC-QToF-MS/MS instrument. It was produced with SPE and then introduced into the MS Xevo G2-S QToF detector of the ACQUITY UPLC{\textregistered} H-Class System. The findings of the UPLC-QToF-MS/MS analysis were processed with the MassLynx 4.1 software to obtain chromatogram data and m/z spectra of each observed peak, which were then validated using the ChemSpider and MassBank databases. Results: Based on the results of metabolite profiling using UPLC-QToF-MS/MS, the 96 \% ethanol extract of S. polycystum indicated a total of 61 compounds, the n-hexane fraction indicated a total of 55 compounds, the ethyl acetate fraction indicated a total of 67 compounds, and the water fraction indicated a total of 49 compounds. Conclusion: There are 232 compounds in the extract and a fraction of S. polycystum consisting of 168 known compounds and 64 unknown compounds.

}, keywords = {Metabolite profiling, Sargassum polycystum, Seaweed, UPLC-QToF-MS/MS}, doi = {10.5530/pj.2023.15.82}, author = {Pramudita Riwanti and Intan Kris Prasetyanti and Burhan Ma{\textquoteright}arif} } @article {1091, title = {Phytochemical Composition and Evaluation of Marine Algal Sargassum polycystum for Antioxidant Activity and In Vitro Cytotoxicity on Hela Cells}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {February 2020}, pages = {88-94}, type = {Original Article}, chapter = {88}, abstract = {

Introduction: Sargassum polycystum is one of marine algal which has a potent antioxidant anticancer activities. This research aims to investigate phytochemical composition, antioxidant activity and in vitro cytotoxicity of marine algal Sargassum polycystum on cervical HeLa cancer. Methods: Sargassum polycystum collected from Dompu beach, Lombok, Nusa Tenggara Barat Province, Indonesia, were extracted into organic solvent of n-hexane, ethylacetate, chloroform and ethanol, respectively. Subsequently, Sargassum polycystum extracts were applied for Thin Layer Chromatography (TLC) analysis, phytochemistry test, total phenolic and total flavonoid contents, as well as for antioxidant activity test by DPPH (2,2-diphenyl-1-picrylhydrazyl) method, and in vitro cytotoxicity evaluation on HeLa cells by MTT (3-[4,5-dimethylthiazol-2-yl]-2,5- diphenyltetrazolium bromide) assay. Results: Phytochemical analysis of S. polycystum extracts are positive for metabolites of flavonoid, steroid, tannin and glycoside. TLC analysis revealed that S. polycystum extracts containing four phytochemical components. Ethylacetate extract of S. polycystum showed the highest total phenolic content, and exhibited greater antioxidant activity than ethanol extract. Total phenolic and total flavonoid content in ethylacetate extract are 548.61 μg/mL and 40.06 μg /mL, respectively. Ethylacetate extract of S. polycystum with IC50 value of 298.3 μg/mL is assigned to have a weak antioxidant activity against DPPH free radical. The results indicate that antioxidant activity of ethylacetate extracts of S. polycystum is directly correlated with its total phenolic and flavonoid content. Moreover, S. polycystum extracts demonstrated a strong anticancer activity on cervical HeLa cells with IC50 ranging from 38.3 μg/mL to 112.8 μg/mL. Conclusion: This work confirmed that S.polycystum are promising natural antioxidant and anti-cervical cancer agents.

}, keywords = {Antioxidant, Cytotoxicity, HeLa cells, phytochemisty, Sargassum polycystum}, doi = {10.5530/pj.2020.12.14}, author = {Ade Arsianti and Anton Bahtiar and Vincent Kharisma Wangsaputra and Norma Nur Azizah and Wilzar Fachri and Lince Dameria Nadapdap and Ajeng Megawati Fajrin and Hiroki Tanimoto and Kiyomi Kakiuchi} }