Comparative Study of Different Parts of Fruits of Musa Sp. on the Basis oftheir Antioxidant Activity

摘要

0The purpose of the present study was to investigate the comparative antioxidant activity between the different parts of banana fruits of Musa sp. (Musa paradisiacal and Musa acuminata). Antioxidant activity was determined by electron transfer assay (ET assay) consisting of total Flavonoid content (Thin Layer chromatography and Aluminium chloride colorimetric method), total Phenolic content (Folin ciocalteau method), reducing power and DPPH free radical scavenging assay in alcoholic extracts of peel and pulp of ripe & uniripe of banana fruits of Musa sp. (Musa paradisiaca and Musa acuminata). This was found from the present study that from the thin layer of chromatography, Flavonoid glycoside and Anthocyanidins & anthocyanins found to be present in the ethanolic and methanolic extracts of them. Maximum flavonoid content found to be present in the methanolic extract of pulp of unripe banana fruit of Musa paradisiaca i.e. 90.56 mg QE/ g of Extract, whereas same amount of flavonoids to be present in the ethanolic extract of pulp of ripe of banana fruit of Musa acuminata by aluminium chloride colorimetric method. Total phenolic content was also determined in the ethanolic and methanolic extract of peel and pulp of ripe and unripe banana fruit of Musa sp., where 2298 mg QE/ g of extract found to be present in the ethanolic extract of pulp of unripe banana fruit of Musa paradisiaca. As far as methanolic extract was concerned, peel of ripe of banana fruit of Musa acuminata has also shown maximum phenolic content i.e. 1162 mg QE/ g of Extract. Antioxidant activity was als found to be maximum in the pulp of unripe banana fruit of Musa paradisiaca with percentage inhibition of i.e. 70.2%, where as 85.38% of inhibition found to be present in the pulp of unripe of Musa acuminata. Reducing power found to be maximum in ethanolic ripe pulp of Musa acuminata and also in methanolic ripe peel of Musa paradisiaca. We authors would like to conclude from the above study, unripe pulp and peel of Musa acuminata has shown maximum antioxidant and also the presence of polyphenolic flavonoids. Future work includes the purification and quantification of secondary metabolites to use as a where Unripe pulp and peel of Musa acuminata and Musa paradisiaca traditional herbal remedy.