Analysis of Vitamin C Content of Red Dragon Fruit (Hylocereus polyrhizuz) and White Dragon Fruit (Hylocereus undatus) in Storage with Different Temperatures and Times

Abstract

This study was conducted to determine the temperature and storage time of the exact vitamin C content of red and white dragon fruit and the difference of vitamin C. The samples were taken from the plantation land in Ubud Andong Highway, Petulu, Gianyar Regency. Treated for 10 and 30 days with 2, 10, 20 and 300C temperature treatment with five repetitions using Completely Randomized Design Factorial pattern. Data obtained statistically using ANOVA (Analysis of Variance). The highest vitamin C content in red dragon fruit is 29.61 mg/ 100g temperature 100C for 10 days and the lowest is in 30 days storage with temperature 300C that is equal to 22,09 mg/ 100g. While the white dragon fruit content of vitamin C highest contained in storage with a temperature of 20C is 22.69 mg/ 100g with maximum storage of 10 days and the lowest at a temperature of 300C is 17.37 mg/ 100g.

Uji In Vitro Aktivitas Antioksidan Dari Ekstrak Kulit Buah Naga Merah (Hylocereus costaricensis)

“…Buah naga merupakan salah satu buah tropis di bawah famili kaktus, Cactaceae. Secara umum, ada dua spesies dari buah naga, yakni buah naga merah (Hylocereus polyrhizuz) dan buah naga putih (Hylocereus undatus) (Sumaryani & Dharmadewi, 2018). Perbedaan keduanya terletak pada warna dan ukuran buah, serta warna dari daging buahnya.…”