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Zilfa Zilfa
Andalas University
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Other

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Degradation of Pesticide Residues Cherizeb and Emacel in Chili Washing Water Using ZnO/Zeolite Catalyst Through Photolysis Zilfa; Safni; Benny Damas Putra
Vitalitas Medis : Jurnal Kesehatan dan Kedokteran Vol. 3 No. 2 (2026): April: Vitalitas Medis : Jurnal Kesehatan dan Kedokteran
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/vimed.v3i2.3014

Abstract

Chili (Capsicum annuum L) ) is one of the most important horticultural commodities widely consumed in Indonesia and has high economic value. To maintain productivity and prevent pest attacks, farmers commonly apply chemical pesticides intensively. However, excessive and improper pesticide application can leave harmful residues on the surface and within the tissues of chili fruits. The accumulation of these residues not only poses health risks to consumers but also contributes to environmental pollution, particularly in wastewater generated from chili washing activities. This study aims to reduce pesticide residues of Cherizeb and Emacel in chili washing water using the photolysis methodassisted by a ZnO/zeolite catalyst. Zinc oxide (ZnO) acts as a photocatalyst activated by ultraviolet (UV) light to produce reactive hydroxyl radicals (•OH) capable of decomposing complex organic compounds into simpler compounds such as CO₂ and H₂O. Meanwhile, zeolite is used as a catalyst support due to its large surface area and high adsorption capacity, allowing adsorption and photocatalytic processes to occur simultaneously. The results showed that the photolysis method using the ZnO/zeolite catalyst significantly reduced pesticide residues, with optimum degradation efficiencies of 85.66% for Cherizeb using 0.8 g ZnO/zeolite under UV irradiation for 60 minutes, and 83.97% for Emacel using 0.8 g ZnO/zeolite under UV irradiation for 75 minutes. The samples were characterized using Fourier Transform Infrared Spectroscopy (FTIR) to identify functional groups, indicating the disappearance of specific organic functional groups. Pesticide residues on chili samples were analyzed using UV-Vis spectrophotometry to determine concentrations before and after treatment. X-Ray Diffraction (XRD) analysis confirmed that the crystalline structure of the catalyst remained stable after the photolysis process. Based on these findings, the ZnO/zeolite catalyst is proven to be effective in reducing pesticide residues through photocatalytic degradation and has the potential to be applied as a safe, efficient, and environmentally friendly post-harvest technology to improve the quality of agricultural products.
Co-Authors - Hariyanti - Zulfarman Adlis Santoni Admi Admi Afrizal Afrizal Aju Deska Aldini, Tasya Alsa Sepia Putri Amanda, Selya Anggreini Putri, Mitha Aufa Zakiyuda Benny Damas Putra Bustanul Arifin BUSTANUL ARIFIN Deliza , Deliza Deliza, Deliza Desra Welly Deswati Deswati Dwi Syukur Phameswari Dwitami, Aisyah Rahma Elida Mardiah Emil Salim Emriadi - Febi Rahmi Fiska Julian Tasari Fivi Mona Bareno Gumilang, Yuza Ahmad Hamzar Suyani Hariyanti, - Hermansyah Aziz Hermansyah Aziz Hevira, Linda Heysha, Fheiza Ilahi, Fitratul Imelda Imelda Imran Nazar Izzah, Annisaul Mai Efdi Mai Efdi Matlal Fajri Alif Megita Febiola Mia Yeliandri Mirawati Mirawati Mirawati Mirawati Muhammad Hafiz Reza Neneng Swesty Norman Ferdinal Novesar Jamarun Novesar Jamarun Novesar Jamarun Nurhasni Nurhasni Nurul Afifah Nurul Annisyah Olly Norita Tetra Putri Julanda Ardica Putri Ramadhani Putri Ramadhani, Putri Putri, Anggi Nabila Rahmayeni Rahmayeni Rahmi, Febi Rahmiana Zein Raihan Hanif Aulia Refilda Refilda Refinel - Ria Elvi Susanti Risa Oktaviani Safni Safni Safni Salim, Emil Salsa Nurul Fadhilah Siti Zahara Sumaryati Syukur Suryati Suryati Suryati Swesty, Neneng Syafrizayanti Syafrizayanti Syahril Syahril Syiffa Fauzia Syukri Syukri - Syukri Arief Syukri Arief Syukri Syukri Tasari, Fiska Julian Teti Nurhayatul Rahmi Tommi Hermansyah Upita Septiani Upita Septiani Vivi Sisca Vivi Sisca Wellia, Diana Vanda Wilda Putri Suhada Yefrida - Yefrida Yefrida Yetria Rilda Yulizar Yusuf Yulizar Yusuf Zulfarman, - Zulkarnain Chaidir