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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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References
Badan Pengawas Obat dan Makanan Republik Indonesia. (2013). PERKABPOM Nomor 37 Tahun 2013 Tentang Batas Maksimum Penggunaan Bahan Tambahan Pangan Pewarna. 80.
Hidayah, T. (2013). Uji Stabilitas Pigmen dan Antioksidan Hasil Ekstraksi Zat Warna Alami dari Kulit Buah Naga (Hylocereus undatus). Skripsi, 29(18), 2616–2627.
Jamilah, B., Shu, C. E., Kharidah, M., Dzulkifly, M. A., & Noranizan, A. (2011). Physico-chemical characteristics of red pitaya (Hylocereus polyrhizus) peel. International Food Research Journal, 18(1), 279–286.
Lindy, T. E. N. 2008. Aplikasi Ekstrak Antosianin Buah Duwet (Syzigium cumini) Pada Produk Jelly, Yogurt dan Minuman Berkarbonasi. Skripsi. Institut Pertanian Bogor, Bogor.
Ramli, N.S., Ismail, P., & Rahmat, A. 2014.Influence of Conventional and Ultrasonic-Assisted Extraction on Phenolic Contents, Betacyanin Contents, and Antioxidant Capacityof Red Dragon (Hylocereuspolyrhizus). The Scientific World Journal, vol. 2014, Article ID 964731, 7 pages, 2014. https://doi.org/10.1155/2014/964731
Saifudin, A. 2014. Senyawa Alam Metabolit Sekunder Teori, Konsep, dan Teknik Pemurnian. Edisi Pertama. Cetakan Pertama. Deepublish. Yogyakarta.
Simanjuntak, L., C. Sinaga., dan Fatimah. (2014). Ekstraksi Pigmen Antosianin dari Kulit Buah Naga Merah (Hylocereus polyrhizus). Jurnal Teknik Kimia USU. Vol 3 (2) : 25-29.
Sudarmi, S., Subagyo, P., Susanti, A., & Wahyuningsih, A. S. (2015). Ekstraksi Sederhana Antosianon dari Kulit Buah Naga (Hylocereus polyrhizus) sebagai Pewarna Alami. Eksergi, 12(1), 05.
Wibawanto, N. R., Ananingsih, V. K., & Pratiwi, R. (2014). Produksi Serbuk Pewarna Alami Bit Merah (Beta vulgaris L.) Dengan Metode Oven Drying. Universitas Katolik Soegijapranata, 38–43.
Widyasanti.A, Nurlaily, N., dan E. Wulandari. (2018). Karakteristik Fisikokimia Antosianin Ekstrak Kulit Buah Naga Merah Menggunakan Metode UAE. Jurnal Ilmiah Rekatasa Pertanian dan Biosistem. 6(1) : 27-38
Winata, E. W. (2015). Ekstraksi Antosianin Buah Murbei ( Morus Alba L . ) Metode Ultrasonic Bath ( Kajian Waktu Dan Rasio Bahan?: Pelarut). Jurnal Pangan Dan Agroindustri, 3(2), 773–783.