CONTENT OF VITAMIN C AND PHYSIOLOGICAL PROPERTIES OF BITTER GOURD CULTIVARS IN PLASTIC GREENHOUSE
Bitter gourd (Momordica charantia L.) fruit has long been used as a food and medicine in tropical and subtropical regions. The purpose of this study was to investigate total vitamin C content, total phenolic content, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2,2′-zinobis-(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging (ABTS) assay and ferric reducing antioxidant power (FRAP) assays in 8 cultivars of bitter gourd in plastic greenhouse located in Jeju Island, Korea. Fruit length and fruit weight ranged from 7.1±0.5 to 37.0±1.9 cm and from 18±2 to 577±95 g, respectively at harvest time. The contents of total vitamin C (112.4±12.0 mg/100 g) and total phenolic content (3.81±0.3 mg/g) were higher in Nakanokoya cultivar (large fusiform fruits) compared to other cultivars (long and small fruits) tested bitter gourd. The DPPH, ABTS and FRAP assays tends to higher in Nakanokoya and Kanzyukoya cultivars than others bitter gourd cultivars. Therefore, Nakanokoya bitter gourd was the highest in content of vitamin C and antioxidant activities among experimented cultivars in greenhouse cultivation.
Doo-Gyung Moon, , Kye-Man Cho, , Chun-Hwan Kim, , Ki-Cheol Seong, , Daneil Son, , Myeng-Whan Cho, , In-Ho Yu, , Hee-Ryong Ryu, and Ill-Hwan Cho, (2014). CONTENT OF VITAMIN C AND PHYSIOLOGICAL PROPERTIES OF BITTER GOURD CULTIVARS IN PLASTIC GREENHOUSE. Acta Hortic. 1037, 407-412
DPPH, fruit features, total phenolic compound content