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All Journal TEKNIK Communications in Science and Technology Journal of Vocational Studies on Applied Research International Journal of Renewable Energy Development Jurnal Sains Materi Indonesia
Aji Prasetyaningrum
Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, Kampus Undip Tembalang, Semarang 50239
Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Journal : Journal of Vocational Studies on Applied Research

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Optimization Extraction of Anthocyanin from Roselle as a Natural Colorant using Natural Deep Eutectic Solvent with Microwave Assisted Extraction Method Kurnianto, Ade; Prasetyaningrum, Aji; Paramita, Vita
Journal of Vocational Studies on Applied Research 2025: Just Accepted Manuscript and Article In Press 2025
Publisher : Vocational College of Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jvsar.v0i0.26556

Abstract

Roselle (Hibiscus sabdariffa L.) contains high levels of anthocyanins with significant antioxidant properties. However, conventional extraction methods often result in low efficiency and degradation of bioactive compounds. This study aims to optimize the extraction of anthocyanins from roselle using Microwave Assisted Extraction (MAE) with Natural Deep Eutectic Solvent (NADES) combination of sodium acetate and glycerin then examine the effect of optimum anthocyanin content. The variables applied were microwave power (200, 400, 600 Watt) and extraction time (4, 6, 8 min), optimized using Response Surface Methodology (RSM) with 12 experimental runs. Analysis included antioxidant content (anthocyanins, vitamin C, tannins, and total phenolics) and stability tests (density and viscosity). The RSM results have shown that the optimization value of anthocyanin content is 0.3217%, which will be achieved at an extraction time of 6.02 min, and microwave assisted extraction power at 323.77 Watt. The result of the optimum anthocyanin variable shows anthocyanin content is 0.3072% confirming the model's accuracy. MAE combined with NADES provides an efficient and environmentally friendly method for extracting natural colorants with high antioxidant activity from roselle.
Co-Authors Anggraini, Widyah Ashianti, Aulia Dwi Dessy Agustina Sari Didi Dwi Anggoro Hadiyanto Hadiyanto Imtinan, Alifa Bakhitah Kurnianto, Ade Le Monde, Brilliant Umara Moh. Djaeni Nabilah, Farhanah Novita, Nasyriyatul Hana Nugroho, Akbar Nur Rokhati Pertiwi Andarani RATNAWATI Riyanto, Teguh Vita Paramita Wirda Udaibah Yuliani Setyaningsih