ANTHOCYANIN EXTRACTION OF RED DRAGON FRUIT PEELS (Hylocereus polyrhizus) USING MACERATION METHOD

Jurnal Agroindustri Pub Date : 2021-12-03 DOI:10.31186/j.agroindustri.11.2.72-81

A. Widyasanti, Muhammad Ziauddin Arsyad, E. Wulandari

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Abstract

Anthocyanins present in the red dragon fruit peel (Hylocereus polyrhizus) can be used as natural dyes. An extraction procedure can be used to acquire anthocyanins. The maceration method was used to isolate anthocyanin dyes in this analysis. The aim of this study was to see how the solvent ratio affected the total anthocyanin content in the skin of red dragon fruit. This research used laboratory experimental method using descriptive analysis. The solvent ratios used were (1:30, 1:40, 1:50 and 1:60) with a mixture of distilled water with 10% citric acid as the solvent. Parameters observed were total yield, pH, residual solvent content, spesific gravity and total anthocyanin content. The best treatment was found to be red dragon fruit peel with a solvent ratio of 1:30, which produced the highest total anthocyanin content of 4.73 mg/L. This treatment resulted total yield 7.40%, residual solvent content 0.05%, spesific gravity 1.30, and pH 1.05, respectively. It was proven that the more solvent added could linearly decrease the effectiveness of anthocyanin extraction of dragon fruit peel extracts.

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浸渍法提取红龙果皮花青素

红龙果皮(Hylocereus polyrhizus)中的花青素可用作天然染料。提取花青素是一种可行的方法。本实验采用浸渍法分离花青素染料。研究了溶剂配比对红火果果皮中总花青素含量的影响。本研究采用描述性分析的实验室实验方法。溶剂比分别为1:30、1:40、1:50和1:60，溶剂为10%柠檬酸和蒸馏水的混合物。考察了总收率、pH、残溶剂含量、比重和总花青素含量。以红火龙果皮为最佳处理，溶剂比为1:30，总花青素含量最高，为4.73 mg/L。该处理的总收率为7.40%，残溶剂含量为0.05%，比重为1.30,pH为1.05。结果表明，溶剂用量越大，火龙果皮花青素的提取效率越低。

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Jurnal Agroindustri

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