Phytochemical content, extract standardization and antioxidant activity of Calliandra calothyrsus Meissn leaf, a potential phytoestrogen source

Calliandra ( Calliandra calothyrsus Meissn.) is a leguminous shrubs that almost spread throughout the area of Bali island, especially the area of Baturiti, Tabanan. The ethanol extract of 80% of C. calothyrsus leaves is a potential source of exogenous estrogen in terms of its phytoestrogen content. Potential extract of potassium which is very useful can be consumed in the form of phytopharmaca preparations. One of the requirements to prepare the formulation of phytopharmaceutical preparations should be done related to phytochemical screening and standardization of raw materials. This study aims to perform phytochemical screening and standardization of 80% ethanolic extract of C. calothyrsus leaves. Phytochemical screening can provide an overview of chemical compounds which are contained in C. calothyrsus leaf extracts to their activity. The standardization of extracts will ensure the quality of raw materials extract to be used. The leaf extraction of 80% ethanol yielded as much as 21.85%. Phytochemical screening showed that 80% positive ethanol extracts contained flavonoid group compounds. The powder standardization obtained 8.35% of water content. While the extracts standardization obtained 5.26% of extract water content. The total ash content of the extract was obtained 4.54% and the acid soluble ash content was 0.5%. The ethanol extract of 80% C. calothyrsus leaf has met the standardization of raw material extract.