摘要
Rockmelon is an important commercialized fruit that belongs to one of Cucurbitaceae family. In this experiment, three rockmelon cultivars viz Honeymoon, Champion and Glamour were selected for 汕-carotene, Total Phenolic Content (TPC), Total Flavonoid Content (TFC) and radical scavenging activity (SC50) analysis. Honeymoon cultivar gave the highest percentage for 汕-carotene content (9.7x10-4%). The aqueous extract of each hybrid fruit*s skin, flesh and seed was used in determining TPC, TFC and SC50. It was discovered that Glamour fruit*s skin had the largest amount of total phenolic content (52.5 mg Gallic Acid Equivalent (GAE) g-1) and Champion seed gave the highest value for flavonoid content (861 mg Catechin Equivalents (CE) g-1). For DPPH test, Glamour seed performed the highest radical scavenging activity at the lowest concentration (250 米g mL-1). In conclusion, Glamour seed, Honeymoon and Glamour fruit flesh gave better antioxidant activities compared to other extracts. Thus, these results suggested that aqueous extract of Cucumis melo L. cultivars may serve as a potential source of natural antioxidant for food and nutraceutical application.