Phytochemical Screening and Antioxidant Activity Test of The Stem and Flower Ethanolic Extract from Kepok Banana (Musa acuminatae, L.)

Abstract

One of the natural ingredients whose benefits are not widely known is the stem  and flower of the kepok banana (Musa acuminatae, L.). Stems  and flowers of the  banana are known to contain flavonoid compounds. Most of the flavonoid compounds have antioxidant activity. This study aims to determine the antioxidant activity and to perform phytochemical screening  of the stem  and flower ethanolic extracts from banana kepok.

   Simplicia powder from stem  and banana flower was extracted by remaceration method using 96% ethanol. The extract was then tested for antioxidant activity by spectrophotometer using the DPPH method (2,2-diphenyl-1-picrylhydrazyl) at a wavelength of 520 nm. The standard compound used for comparison is quercetin.

   The results showed that the IC₅₀ value for the ethanol extract of the stem was 19,75  µg/ml and the kapok flower of banana was 13,21 µg/ml . The results of phytochemical screening showed that the stem and flower of banana kepok extract contained flavonoid, saponin and polyphenol.