Ruslan, Eli Rohaeti, Yusiran, Putri Ayu Mutmainnah, Ahmad Sandi
This paper discusses the extraction of natural dyes from brown algae Sargassum sp. using the Microwave assisted extraction method. Brown algae Sargassum sp. used in this study were taken from Wane Beach, Bima Regency. The sampel is washed and dried with aerated and then ground to form powder. Sargassum sp. powder mixed with distilled water (1:4 w/v) then extracted in the microwave for 1 minute. Extraction is done by varying the power level at 10; 20; 30; 40 and 50. Extracts of the dyes produced were then characterized using UV-Vis and GC-MS spectrophotometers. The results of the analysis using UV-Vis showed that the maximum dye extract was obtained at power level 30. The results of the analysis using GC-MS showed that the compound content in the Sargassum sp. Extract. using distilled water there are 15 peaks and the largest content is Hexadecanoic acid, methyl ester compound with a peak area of 79.72%. While the content of compounds in Sargassum sp. using methanol solvent there are 32 peaks and the largest content is Hexadecanoic acid, methyl ester which is 29.39%. © 2024 Author(s).
Department of Chemistry Education, Universitas Nggusuwaru, NTB, Indonesia; Department of Chemistry, Yogyakarta State University, Yogyakarta, Indonesia; Department of Physics Education, Universitas Nggusuwaru NTB, Indonesia; Department of Economic Education, Universitas Nggusuwaru NTB, Indonesia
