Anggraini, Lovera and Harianti, Siska and Zulaiha, Siti (2022) VITAMIN C LEVELS IN SKIN AND FLESH OF RED DRAGON FRUIT (HYLOCEREUS LEMAIREI (HOOK) BRITTON & ROSE) BY UV-VIS SPECTROPHOTOMETRY. International Journal of Research Publication and Reviews, 3 (6). pp. 769-772. ISSN 2582-7421

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Abstract

Indonesia is a country rich in plants due to its fertile soil and tropical climate. This provides an opportunity to cultivate a wide range of plants, including fruits. Pitaya, commonly known as dragon fruit, is one of the fruits that grow in Indonesia. Vitamin C is an important antioxidant that has health and cosmetic benefits. The level of vitamin C in dragon fruit varies depending on the type, environment, and where it grows. This study aims to determine the comparison of vitamin C levels in skin and flesh of red dragon fruit growing in Salimpaung District, Tanah Datar Regency, West Sumatra Province by UV-Vis Spectrophotometry. This research was conducted at the Pharmacy Laboratory of Abdurrab University in January 2022. The maximum wavelength of vitamin C obtained was 265 nm with an absorbance of 0.497. The linear regression equation is y = 0.061x + 0.121. The results show the red dragon fruit skin contains 41, 579 mg of vitamin C per 100 g, whereas red dragon fruit flesh has 202.593 mg of vitamin C per 100 g.

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