KADAR FLAVONOID TOTAL BEBERAPA TUMBUHAN FAMILI ASTERACEAE

ABSTRACTIndonesia is a country with abundant biological wealth which has 25% of plant species in the world which reaches 20,000 species that are useful in medicine. Plants of the Asteraceae family are often used by the community as traditional medicine. The pharmacological effects of Asteraceae plants can be attributed to various phytochemical compounds, including polyphenols, phenolic acids, flavonoids, acetylene and triterpenes. Flavonoids have been shown to have high activity for inhibiting xanthine oxidase. The aim of this study was to determine the total flavonoid content of several members of the Aseteraceae family (Taraxacum officinale, Crassocephalum crepidioides, Elephantopus scaber, Gynura procumbens, Ageratum conyzoides, Sonchus arvensis) using UV-Visspectrophotometry. The results showed that all Asteraceae family plants tested positive for flavonoid compounds. Determination of total flavonoid levels was carried out based on the AlCl3 method with total flavonoids expressed in QE (Quercetin equivalent) at a maximum wavelength of 415 nm. The results showed that the average content of total flavonoids of Crassocephalum crepidioides 3.4345% ± 0.2706, Taraxacum officinale 2.3217% ± 0.032, Ageratum conyzoides, L 3.3764% ± 0.257, Sonchus arvencis L. 2.7279% ± 0.0399, Gynura procumbens 2 .2825% ± 0.1370, and Elephantopus scaber 2.5294% ± 0.0861. The conclusion of this study was that the highest total flavonoid content was in Crassocephalum crepidioides and Gynura procumbens plants with the lowest total flavonoid content. Keywords: Phytochemical Screening, Total Flavonoid, Family Asteraceae