The proximate composition of the ripened fruit pulp and peels of mango and banana is shown in Table 1. The highestmoisture content of 82.3% was observed in mango fruit pulp and the lowest was in mango peels (60.8%) and inbanana, the moisture content was 74.8% in pulp and 66.8% in peels. It clearly appears that the mango has higher drymatter than banana. The dry matter (DM) ranged from 10.97% to 26.89% in fruit samples and it was found to be highin banana fruit pulps. The overall DM showed comparatively high values in pulps than peels. This might be due to anincrease in water content of the pulp, derived from carbohydrates utilized during breathing and osmotic transfer fromthe peel to pulp due to rapid increase in the sugar content in the pulp [23]. The starch content ranged from 0.507% to0.632% in the fruit pulps and from 1.074 to 1.706 % in fruit peels of mango and banana, respectively. Several authorshave reported that the degradation of starch to free sugars during the ripening process due to combined action ofseveral enzymes [23, 24]. A considerable decline in starch content from 20-23 to less than 1% and increase in solublesugar from less than 1% to 20 % was observed by Forster et al. [25] in fruit pulps during ripening and the degradationof starch reserve in fruit pulps appears to be relatively rapid where as in peels the conversion is rather gradual. Lima etal. [26] have reported that even though starch is the main carbohydrate present in the mature green mango fruit, but asthe fruit becomes over-ripe, only traces of starch can be detected. The banana fruit pulp has showed highest ashcontent of 19.75% and the mango pulp has the lowest of 13.08%. The observed results in the present study on ashcontent are in agreement with the literature findings of Hammond et al. [6] in the dessert banana peels.The crude protein content ranged from 5.65 to 7.65% in banana and 4.27% to 7.96% in mango fruit biomass (Table 1).Essien et al. [8] have reported 7.8% protein content in banana peels has good agreement with our results. According toEssein et al. [8], the high protein content and carbohydrate content of these fruits could serve as the main source forfermentative ethanogenic microbial growth. The highest lipid content of 6.5% was observed in banana fruit pulps andthe lowest was recorded in banana peels (1.37%)