Effects of pollination techniques and harvesting stage on the physico-chemical characteristics of jackfruit

• Pollination technique did not affect the physico-chemical quality of jackfruit flesh. Harvesting syncarp at 14 WAA is recommended if grower plans to sell within 50 km radius. The flesh was affected by ripening condition and weeks after anthesis techniques could fruit size, whereas optimal maturity stage during harvest postharvest life eating fruit. Therefore, right pollination timing an important factor in reducing losses. objective this study determine changes harvested four different stages produced from natural assisted pollination. This conducted a commercial farm Bukit Beruntung, Selangor, Malaysisa. For pollination, selected female inflorescences were covered with bags before anthesis. Hand performed gently rubbing mature male over surface receptive inflorescences. left develop into syncarps themselves. Syncarps age 12, 13, 15 (WAA) used study. each stage, allowed ripen naturally 27±2 °C 70?80% relative humidity until sweet aroma detected. Physico-chemical characteristics such as colour, firmness, pH, titratable acidity, ?-carotene, lycopene content, sugars, organic acid content antioxidant activity evaluated. In study, However, level WAA. initial maturity, L*, C* h o values, remained unaffected. decreased significantly onwards when rind turned fully yellow. indicated that bulb colour became lighter less intense green changing yellow ripening. Rind firmness progressed due cell wall modification starch hydrolysis occurred. ?-carotene fleshy higher than those 12 13 Sugar glucose, fructose sucrose increased ripened. Total phenolic, flavonoid ripened compared ripe edible parts contain high levels thereby signify nutritional value for human health. conclusion, harvesting cv. Tekam Yellow, it local markets long-distance markets.