Physico-chemical properties of starfruit (Averrhoa carambola)

Abstract

This study evaluates the physico-chemical properties of starfruit at two maturity stages. The physical properties of fruit length, width and weight were more in ripe fruit than halfripe fruit. The chemical properties of reducing, non-reducing sugar, titrable acidity, total sugars, and TSS contents increased with the stages of maturity. Ripe fruit was less acidic (pH 3.71) than halfripe fruit (pH 3.03). Starfruit contained good amount of vitamin C, in halfripe fruit (28.94 mg/100 g) and in ripe fruit (35.41 mg/100g). The potassium content in halfripe fruit was 119 mg/100 g and 125 mg/100 g in ripe starfruit. It also contained small amount of iron, phosphorus, calcium. The antinutrients content in carambola decreases with the maturity.