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All Journal Jurnal Penelitian dan Evaluasi Pendidikan IPTEK The Journal for Technology and Science Alchemy : Journal of Chemistry Pharmaciana: Jurnal Kefarmasian Abdimas agriTECH EduChemia: Jurnal Kimia dan Pendidikan Journal Of Chemical Process Engineering (JCPE) Indonesian Food Science and TechnologyJournal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia AGROSCIENCE TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian Jurnal Teknologi ASEAN Journal of Chemical Engineering Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Karya Abdi Bioscientist : Jurnal Ilmiah Biologi Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Pro-Stek JAPI: Jurnal Akses Pengabdian Indonesia Sainsbertek Jurnal Ilmiah Sains & Teknologi Journal of Global Pharma Technology Indonesian Journal of Food Technology Composite Journal Of Chemical Process Engineering NAWASENA: Journal of Community Service
Yuyun Yuniati
Department Of Chemistry, Ma Chung University, Malang 65151, Indonesia
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Journal : Indonesian Food Science and TechnologyJournal

 1 
Investigation of the Extraction Parameters on Acquisition of Natural Colorants from Coleus atropurpureus L. Benth Leaves Using Microwave- and Ultrasonic-Assisted Extraction Yuniati, Yuyun; Gala, Selfina; Sumarno, Sumarno; Mahfud, Mahfud
Indonesian Food Science and Technology Journal Vol. 8 No. 2 (2025): Volume 8 Number 2, July 2025 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v8i2.42509

Abstract

Abstract— This study systematically investigates the application of Microwave-Assisted Extraction (MAE) and Ultrasonic-Assisted Extraction (UAE) to extract natural pigments from Coleus atropurpureus L. Benth leaves, using water as a green solvent. These advanced techniques were selected over conventional methods due to their well-documented advantages, including shorter extraction times, higher extraction efficiencies, and reduced environmental impact through lower solvent consumption. Importantly, MAE and UAE are particularly suitable for isolating thermolabile compounds such as plant pigments, as they minimize thermal degradation while enhancing yield. Key extraction parameters (feed-to-solvent ratio (F/S), particle size, extraction time, temperature, microwave power, and ultrasonic frequency) were systematically varied to evaluate their influence on extraction performance. Additionally, an air flow system was integrated into both setups to study the effect of controlled airflow (1 to 4 L/min) on pigment yield. For MAE, optimal conditions included 400 W microwave power, an F/S ratio of 0.01 g/mL, particle size greater than 40 mesh, 40 minutes extraction time, and an airflow rate of 1 L/min. In the case of UAE, maximum yield was achieved at a frequency of 40 kHz, extraction temperature of 60°C, F/S ratio of 0.01 g/mL, 25 minutes extraction time, and an airflow rate of 1 L/min. The resulting extracts were characterized using phytochemical screening, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and gas chromatography (GC). Kinetic modeling, employing first- and second-order equations, demonstrated that the second-order kinetic model provided a better fit for both MAE and UAE processes, indicating complex interactions between solute and solvent. Overall, this study highlights the potential of MAE and UAE as efficient, eco-friendly alternatives for pigment extraction from Coleus leaves.
Co-Authors Achmad Qodim Syafa'atullah Adelia, Kezia Agung Rasmito Alfanaar, Rokiy Anitarakhmi Handaratri Aziza, S. Alfiyah Nur Bambang Sigit Sucahyo Bambang Sutejo Bambang Sutejo, Bambang Cahyani, Maulidya D. Christa, Amadea Chuardy, Valentino Adrian Dedy Kunhadi Devianti, Rachma Nur Dhiya Dini Azmi Donny Satria Bhuana Elizabeth Angela Sitijo Eric Nurandriea Fadjar Kurnia Hartati Fadjar Kurnia Hartati, Fadjar Kurnia Fahilah, Khoiriyah Farrell Ricardo Tirtasatya Febriana Kesuma, Ruth Heriyanto Heriyanto Jannah, Jumrotul Jessica Lukito Jessica Novanti Kurniawan Kejora Handarini Kestrilia Rega Prilianti Kusyairi, Achmad Lailatul Qadariyah Leny Yuliati M. Yogi Riyantama Isjoni Mahfud Mahfud Mahfud Mahfud Mahfud Mahfud Mahfud Mahfud Maria Agustini Melany Melany Melinda, Anna Moh. Ainul Fais Monica, Eva Natanael Anugerah Tuuk Natan Ningrum, Cicik Agustia Ningtyas, Rosidah Wahyu Nirmala Siregar, Rena Novidayasa, Ifra Nunuk Hariani Nunuk Hariyani Nur Aziza, S. Alfisyah NURUL HAYATI Pamela Felita Tjendra Pantjawarni Prihatini Perwirani, Nindya Ayu Leonita Pradipta Risang Ratna Sambawa Pramitha, Asti Rizkiana Prasiska, Revina Lusy Prayudanti, Adhania Andika Putra Siswoyo , Deddy Kurniawan Rachma Nur Devianti Rahmiati, Retnani Ramadhani, Mirza Retnani Rahmiati Rollando, Rollando Ruth Febriana Kesuma S. Alfisyah Nur Aziza Sandra Dewi Tansil Saras Nurani Putri Saraswati, Exist Selfina Gala Shafitri, Virginia Sholihah, Dewi Deniaty Sri Rahajoe, Endang Sucahyo, Bambang Sigit Sultan Arif Rahmadianto Sultan Arif Rahmadianto Sumarno . Sumaryam Syafa’atullah, Achmad Qodim Tajuddin Noor, M. Trisbiantoro, Didik Widodo, Evan Krisdian Wilujeng, Lilis Lestari Wulandari, Imania Ayu Zuri Rismiarti Zuri Rismiarti