OPTIMATION OF GREEN TEA WASTE AXTRACTION USING MICROWAVE ASSISTED EXTRACTION TO YIELD GREEN TEA EXTRACT

摘要

Indonesia has a great wealth of biodiversity, but unfortunately the natural resources has been little studied and used in the therapy. One of the plants, grown in Indonesia is tea. Tea waste is waste from the tea industry, is quite a lot and has not been used optimally. This study aims to obtain the most effective green tea waste extraction conditions using MAE (Microwave Extraction Assisted) to produce green tea extract that has antioxidant optimum. From the research, the optimum MAE conditions are 450 W power, 60% ethanol, solid solvent comparison 1: 8 and 8 minutes extraction to produce extracts with optimum levels of polyphenols. Extracts obtained have moisture content of 7.83%, pH 5.5, and total polyphenols, total flavonoids, gallic acid, catechin, EGCG and caffeine respectively by 7.1%, 1.04%, 2.76%; 0.83%, 5.18% and 1.03%. Compared with the existing reference, extracts obtained qualify as cosmetic raw materials.