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Physicochemical Characteristics and Antioxidant Activity of Sacha Inchi (Plukenetia volubilis L.) Seed Oil: Effect of Microwave Roasting Pre-Treatment Ulan Mulyani Saputri; Irnawati Irnawati; Asriullah Jabbar; Sahidin Sahidin; Nasrudin Nasrudin; Ari Sartinah; Awal P. Kusumadewi
Indonesian Journal of Global Health Research Vol. 8 No. 5 (2026): Indonesian Journal of Global Health Research
Publisher : GLOBAL HEALTH SCIENCE GROUP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37287/ijghr.v8i5.2108

Abstract

Sacha inchi seed oil (Plukenetia volubilis L.) has considerable potential as a functional oil source due to its high content of unsaturated fatty acids and bioactive compounds. The processing method, especially the roasting pre-treatment, can affect the quality and stability of the resulting oil, both in terms of physicochemical characteristics and antioxidant activity. This study aims to evaluate the effect of microwave roasting pre-treatment on the physicochemical characteristics and antioxidant activity of Sacha inchi seed oil extracted using the Soxhlet method.  Roasting was carried out at Med-Low 30P, Medium 50P, and Med-High 70P power levels. The oil was extracted using the Soxhlet method. Physicochemical properties, including acid value, peroxide value, iodine value, and saponification value, were analyzed using AOCS standard methods, while antioxidant activity was evaluated spectrophotometrically using DPPH, ABTS, and β-carotene bleaching assays methods. The results showed that increasing roasting power increased oil yield, with the highest yield (62%) obtained at Med-High 70P treatment. Variation in roasting power did not have a significant effect on acid value (1.301–1.418 mg KOH/g oil) and iodine value (101.940–103.883 g I₂/100 g oil), but had a significant effect on peroxide value (5.32–5.82 meq O₂/kg) and saponification value (171.591–180.422 mg KOH/g oil). The highest antioxidant activity was obtained at Medium 50P treatment for the β-carotene bleaching assay (501.58 mg/L) and DPPH (1214.92 mg/L) methods, and at Med-Low 30P treatment for the ABTS method (673.70 mg/L). Microwave roasting pre-treatment affects the increase in yield as well as several physicochemical parameters and antioxidant activity of sacha inchi seed oil.
Co-Authors ,, Suryani ., HALIK Adriatman Rasak Adryan Fristiohady Afifah Nur Ramadhani Agus Silfia Susanto Aisyah Asman Aisyah Nelpin Mangidi Al Indra Jaya Tamsa Anastasyah Putri Angelina Lisar Anwar, Irvan Apriyanto Apriyanto Arba, Muhammad Ari Putra Utama Ari Sartinah Asniar Pascayantri Aspadiah, Vica Asrumin Asrumin Astrid Indalifiany Aulia Amala Awal P. Kusumadewi Chetrin Priliyani Derianti Derianti Devi Agustina Dian Munasari Dian Munasari Solo Dwi Nur Agustini Eka Safitri Elvi Rahmayani Elvina Elvina Endang Endang Fadhliyah Malik Fery Indradewi Armadany Fitrawan, La Ode Muhammad Fitri Handayani Frilia Atikah Fristiohady, Adryan Ghais S. Daud Hajir Mayana Hamdani Sapuan Hasnawati Hasnawati Indah Nurcahaya Sari Intan Permata Putri Intan Permata Sari Irnawati Irnawati Irza Sezil Utami Jihan Rahmawati Kadek Ayu Meithasari Kasmawati, Henny Laila Qodriyah Karimu Lidya Agriningsih Haruna Loly Subhiaty Idrus Mawarni Mawarni Mayang Sari Mega Nurjanah Milawati Milawati Mozarivky Salsabilla Javanni Mubarak Mubarak Muh. Ilyas Y Muhamad Handoyo Sahumena Muhammad Alim Marhadi Muhammad Ilyas Y Muhammad Ilyas Y Muhammad Israwan Azis Muhammad Kaisar Winalda Buutuni Nasrudin Nasrudin Ni Kadek Ayu Berlian Nur Afrianingsih Pasaeno Nur Aviarahma Sihani Nur Fadhillah Sahari Sahari Nur Illiyyin Akib Nur Illyin Nur Isnawati Nur Janna Kurniawati Nur Mardatillah Al Mubaidillah Nurfadillah Sudia Nurhikma Nurhikma Nurhikma Nurhikma Nurhikma Nurlian Nurlian Nurmawaddah Nurmawaddah Nursavhira Ramadhani Nurull Hikmah Padil Anugrah Pita Alfionita Purwanto La Sandi Putu Sintya Permani Rachma Malina Rahma Nur Aliza Rahmat Mualiadi RAHMAT MULIADI, RAHMAT Rani Rahmah RH. Fitri Faradilla Rifa’atul Mahmudah Rini Apriani Risnawati Raisu Ruslin Ruslin Sabarudin Sabarudin Sahidin Sahidin Silviana Hasanuddin Siti Hayati Siti Rahmawaty Tombalissa Sitti Raodah Nurul Jannah Sri Agustin Hasine Sri Rasniawaty Sulsiah Sulsiah Sumi Wally Syifa Ahda Valentina Rumalean Tissa Filiany Mangari Ulan Mulyani Saputri Ulul Husna Ummul Choiriyah Cahyaningrum Uswatun Khasanah Wa Ambe Wa Ode Amanah Wa Ode Ifan Mustikawati Wa Ode Mulyana Wa Ode Nuryani Wahyuni Wahyuni Winalda Maharani Yulidyah Syaffanie Lilikay Yuyun Suria Zalzabila Ashari Amir Zelty Wardina