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Chemical Engineering Journal Storage (CEJS)
Published by Universitas Malikussaleh
ISSN : -     EISSN : 28074068     DOI : https://doi.org/10.29103/cejs.v1i4.6176
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering
Chemical Engineering Journal Storage adalah jurnal akses terbuka yang menerbitkan makalah tentang Teknik Kimia. Topik-topik berikut termasuk dalam ilmu-ilmu ini: 1. Proses Kimia 2. Teknik Reaksi Kimia 3. Perpindahan massa dan panas, 4. Pemodelan 5. Material 6. Lingkungan 7. Teknologi Bioproses 8. Review Artikel.
Arjuna Subject : Teknik Kimia (semua kategori) - Kimia Proses dan Teknologi
Articles 441 Documents
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EFEKTIVITAS SENYAWA ANTIOKSIDAN JAHE DALAM MENGHAMBAT OKSIDASI MINYAK JELANTAH Sofyana Juned; Yana Syamsuddin; Hisbullah; Meriatna
Chemical Engineering Journal Storage (CEJS) Vol. 6 No. 03 (2026): Chemical Engineering Journal Storage (CEJS)-Juni 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v6i03.27542

Abstract

The repeated use of cooking oil during frying causes oxidation and thermal degradation that reduce oil quality and produce harmful compounds. The utilization of natural antioxidants has become an alternative approach to improve the quality of waste cooking oil. Ginger (Zingiber officinale) contains phenolic compounds with strong antioxidant activity that can inhibit lipid oxidation. This study aimed to evaluate the effectiveness of ginger extract in improving the physicochemical quality of waste cooking oil at different temperatures and extract ratios. The research used two waste cooking oil samples treated with ginger extract at ratios of 1:6, 2:6, and 3:6 under temperatures of 30°C, 50°C, and 70°C. Oil quality was analyzed based on acid value, peroxide value, iodine value, and saponification value according to Indonesian National Standards (BSNI). The results showed that ginger extract significantly improved oil quality by reducing acid value, peroxide value, and saponification value, while increasing iodine value. The optimum condition was obtained at 30°C with a ginger-to-oil ratio of 3:6. Under this condition, peroxide values decreased to 1.6 and 3.2, while iodine values increased, indicating improved oxidative stability. The antioxidant activity of ginger was associated with phenolic compounds such as gingerol, shogaol, and zingerone which inhibited lipid oxidation reactions.

Page 45 of 45 | Total Record : 441

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