Effect of foliar application of soluble fertilizer on finger development and yield of banana cv. Grand Naine

Abstract

The aim of the in-vitro research was to determine the bio-active components and antioxidant activity of Garcinia gummigutta dry and wet rinds. The bio active components such as total flavanoids were analysed by Aluminium chloride colorimetric method, total tannins by Ferri cyanide and ferric chloride colorimetric method and total poly phenols by Folin ciocalteu’s reagent method respectively. Antioxidant activity of Garcinia gummigutta fresh and dry rinds were determined using DPPH scavenging activity by taking Gallic acid as the standard. The bio active components were high in fresh rind i.e total flavanoids, w/w 2.48 (per cent), total tannins, w/w 2.76 (per cent) and total poly phenols, w/w 1.1 (per cent) than in dry rind 0.20 (per cent), 0.10 (per cent) and 0.04(per cent) respectively. The antioxidant activity of fresh rind was 66.30 (per cent), 73.65 (per cent) and 81.44 (per cent) at the dose of 20mg, 40mg and 60mg. Hence, the traditionally claimed medicinal benefits of gummigutta might be due to its potential antioxidant property. However, further studies to be carried out on animal models using their biological tissues before exploiting commercially.