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Raswen Efendi
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences Other

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The Effectiveness of Long-Time Blanching on The Quality of Avocado Leaf Herbal Tea Added with Cinnamon Powder Ristia, Jeany; Hersamila, Riztiva; Efendi, Raswen; Dewi, Yossie Kharisma
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

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Abstract

Herbal tea is a beverage prepared from plant materials other than Camellia sinensis and has gained attention due to its functional properties. Avocado (Persea americana) leaves are a potential raw material for herbal tea because they contain bioactive compounds with antioxidant activity. This study evaluated the effect of blanching time on the quality of avocado (Persea americana) leaf herbal tea and determined the optimal treatment. A randomized controlled experiment was conducted using four blanching durations (0, 5, 10, and 15 min) with 16 experimental units. Moisture content, ash content, antioxidant activity, tannin content, and sensory acceptance were analyzed. Statistical analysis was performed using ANOVA followed by Duncan’s Multiple Range Test at a 5% significance level. Blanching time significantly affected the physicochemical and sensory properties of the herbal tea. The 15-minute blanching treatment produced the best quality, with moisture content of 4.11%, ash content of 6.46%, antioxidant activity of 41.66 ppm (very strong), and tannin content of 0.0121%. Sensory evaluation showed a yellow color, a slightly stale aroma, a non-bitter taste, and moderate overall acceptance. These results indicate that 15-minute blanching is optimal for producing high-quality avocado leaf herbal tea.
Co-Authors ', Rahmayuni ', Rahmayuni ' ', Suparno ' Adi Darman Damanik AGUNG SURYADI PRATAMA PUTRA Ahmad ' Ibrahim Ahmad Dawardi Harahap Ahmad Ibrahim Ahmad Ibrahim R. S. H Ahmad Reza Akhyar Ali Alamin Hidayat Ana ' Yudiandani Andesmar Andesmar Angga Pramana Anggita Yuni Anik Nur Habyba Annisa Nazifa Salman Ashar, Muhammad Asri Bin Ayu Diana Ayu Diana Bayu Nugroho Chairunnisa Saragih Denty Andriani Devinta Puspita Sari Dewi Fortuna Ayu Dewi Pratiwi Diyah Suriani Dyah Ayu Ariani Edi Setiawan Eko Herianto Eko Raharjo Eko Sutrisno, Eko Elsa Novitasari Erpiani Siregar Evi Sribudiani Evy Rossi Faizah ' Hamzah Faizah Hamzah Faizah Hamzah Faizah Hamzah Fajar Restuhadi Febria Martina Sari Fikri ' Hamidi FIRMANSYAH, YUKI Fitri ' Afrianti Fitria Ulfah Apriani, Fitria Ulfah Fitriani Manurung Gunawan Ardiansyah Hamdani, Reza Rizky Hamzah, Faizah ' Hamzah, Farida Hanum Hersamila, Riztiva Imam S. Dalimunthe, Imam S. Imelda Yunita Ishak Alhafis Jaisman Putra Jamiatul Khairiyah Januari Manurung Jeany Ristia Juangga Joseph A. Marpaung Jumatri Yusri Jumiati Jumiati kartika, Nilda Khansa Tasya Nabila Lasma Simanjuntak Lutfi Habibah M janrigo hidayat Hidayat Marpaung, Juangga Joseph A. Marwita Marwita Marwita Mazhar Perdana, Mazhar Mhd Andry Kurniawan MITA SAPUTRI Muhammad Asri Bin Ashar Muhammad Luthfi Murdiono Abraham Sagala, Murdiono Abraham Nadia Novianti Tamba Nadia Novianti Tamba Nadya Nofaren Netti Herawati Netti Herawati Noviar ' Harun Noviar Harun Noviar Harun2 Novita Yanti Nuraisah ' Nurmadhona Nurmadhona Nurul Hadi PRATAMA PUTRA, AGUNG SURYADI Putra, Anugerah Dwi Putri, Desi Septia Rafi Leo Leo Rosi Rahmadini Payla Juarsa Rahmayuni ' Rahmayuni Rahmayuni Rapidos, Rotua Rendi Dwi Cahyo Resty Rahayu Rianto Rianto Ricki Mustapa Rico Andyka Harahap Rika Andeska Robby Rahadian Romdatul Sholeha RSH, Ahmad Ibrahim Rudianto ' Ryan Nathanael S, Ryan Nathanael Saddam Husein Hasibuan SAPUTRI, MITA Sari, Manja SARI, SELVI MUSTIKA SELVI MUSTIKA SARI Serliana, Afri Shanti Fitriani Sinaga, Dian Felicia Sise Heralita Situmorang, Budi Lambok Suherni Safitri Rangkuti Suwito ' Syahrum Syahrum Syaputri, Citra Dwi Tanjung, Riski ' Teddy Yohannes Tarigan, Teddy Yohannes Usman Pato Vonny Setiaries Vonny Setiaries Johan Yasa Rudin Yelmira Zalfiatri Yossie Kharisma Dewi Yosua Sihotang YUKI FIRMANSYAH Yusmarini Zainal Arifin Zalfiatr, Yelmirai Zulhamdi Sumitro