Determination of radical scavenging activity and Vitamin A, C and E in organically grown Red Pitaya (Hylocereus sp.)

• Main Authors: Rohin, Mohd Adzim Khalili, Ali, Abd Manaf, Abd. Hadi, Norhayati, -, Asmah
• Format: Article
• Language: English; English
• Published: 2010
• Subjects: Q Science (General); QK Botany; RV Botanic, Thomsonian, and eclectic medicine
• Online Access: http://eprints.unisza.edu.my/2886/1/FH02-FPBSM-14-01082.jpg; http://eprints.unisza.edu.my/2886/2/FH02-FPBSM-14-00412.pdf; http://eprints.unisza.edu.my/2886/

This study was conducted to determine radical scavenging activity and vitamin antioxidant composition in red pitaya from organic plantation. For antioxidant vitamins analysis, a reverse-phase high performance liquid chromatography was used and radical scavenging activity of methanolic and water extract were determined using 1,1-diphenyl-2-pircrylhydrazyl assay. Results for radical scavenging activity, red pitaya methanolic extract achieved the highest percentage 70.13% compared with water extract (47.13%). Antioxidant vitamins composition in red pitaya showed that the concentration of vitamin A is 120.13 ± 0.69 μg/100 g freeze-dried sample, vitamin C is 540.27 ± 0.59 μg/100 g fresh samples and vitamin E is 105.67 ± 0.56 μg/100 g freeze-dried samples. This shows that red pitaya may become an alternative and potential source of natural antioxidant.