Aktivitas Antioksidan dan Karakteristik Kimia Fruit Leather Buah Naga Merah (Hylocereus polyrhizus) dengan Subtitusi Labu Kuning (Cucurbita moschata)

Fadhila, PT and K, Rizky Nirmala and Subaktilah, Yani and Rakhmadevi, Ade Galuh (2022) Aktivitas Antioksidan dan Karakteristik Kimia Fruit Leather Buah Naga Merah (Hylocereus polyrhizus) dengan Subtitusi Labu Kuning (Cucurbita moschata). Aktivitas Antioksidan dan Karakteristik Kimia Fruit Leather Buah Naga Merah (Hylocereus polyrhizus) dengan Subtitusi Labu Kuning (Cucurbita moschata), 9 (1). pp. 34-45. ISSN 2598-5884

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Abstract

Fruit leather is a processed food product that is made from the pulp of dried fruit flesh with a moisture content of 10-15% in the form of sheets that is rolled up. Fruit leather can come from one or a mixture of several types of fruit. One of the fruits that can be used as an ingredient for making fruit leather is red dragon fruit which is rich in antioxidants. Fruit leather from red dragon fruit has the disadvantage of a lack of pectin content, so it can be substituted for pumpkin. The experimental design used a completely randomized design with one treatment factor, namely variations in the concentration of red dragon fruit: pumpkin: A (100% red dragon fruit); B (75% red dragon fruit: 25% pumpkin); C (50% red dragon fruit:50% pumpkin); and D (25% red dragon fruit and 75% pumpkin). The purpose of this study was to determine the effect of variations in the concentration of red dragon fruit and pumpkin on the antioxidant activity and chemical properties of red dragon fruit-pumpkin fruit leather. The research parameters included the activity of DPPH (Gaulejac et al), vitamin C (Iodimetry (AOAC 1995)), reducing sugar (Nelson Somogy), and the degree of acidity (pH). The data were analyzed by the ANOVA method and continued with the DMRT test with a significance of 5%. The results showed that the highest pH in sample D (5.52), the highest vitamin C content (7.47%), the highest antioxidant activity (64.96%), and the highest reducing sugar content (51.57%) in sample A (dragon fruit 100%).

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