Pectin extraction from Jackfruit waste by Acid extraction method

Abstract

Jackfruit waste which comprises about 60% of total jackfruit was used for pectin extraction. The jackfruit rind was dried with convective hot air drying and solar drying, the dried peel was extracted with acid extraction, at varied temperatures 85 ℃, 90 ℃, 95 ℃ and pH levels 1.5, 2.0 and 2.5 respectively. The effect of all independent parameters on yield, moisture content, ash content, pH, methoxyl Content, anhydronic acid, equivalent weight, degree of esterification, galacturonic acid, intrinsic viscosity, spredability, colour (L), colour (a), colour (b) was studied. The sample dried with convective hot air drying method with acid extraction at exposure temperature 85 ℃ showed the best result where yield (7.569%), moisture content (7.758%), ash content (3.110%), methoxyl Content (3.433%), anhydronic acid (55.460), equivalent weight (474.362), degree of esterification (34.777), galacturonic acid (44.732), intrinsic viscosity (2.173), spredability (160.444) and 1.5 pH showed the best result where yield (9.450%), moisture content (8.025%), ash content (2.922%), pH (3.866%), methoxyl Content (3.949%), anhydronic acid (54.898), equivalent weight (473.700), degree of esterification (34.344), galacturonic acid (44.917). The experiments conducted using factorial completely randomized design at (p≤0.05).