Long-Term Contact of Commercial Tin Packaging with Natural Bingöl Honey: Corrosion and Surface Analysis Studies
Moroccan Journal of Chemistry, cilt.14, sa.3, ss.1461-1483, 2026 (ESCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 14 Sayı: 3
- Basım Tarihi: 2026
- Doi Numarası: 10.48317/imist.prsm/morjchem-v14i3.70004
- Dergi Adı: Moroccan Journal of Chemistry
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
- Sayfa Sayıları: ss.1461-1483
- Anahtar Kelimeler: Bingöl honey, Corrosion inhibition, Honey packaging, Long-term food storage, Tinplate corrosion
- Çukurova Üniversitesi Adresli: Evet
Özet
Honey is a natural product widely consumed for its health benefits and is commonly stored in tin-based containers, raising concerns regarding long-term corrosion and food safety. While glass and plastic are preferred for retail, industrial-scale honey storage and bulk transportation rely mainly on tinplate containers (tin-coated steel) due to their logistical advantages. This study investigates the long-term interaction between honey produced in Bingöl Province and tinplate in controlled laboratory conditions. Tinplate samples were exposed to honey for 3–18 months, after which the honey-conditioned surfaces were electrochemically evaluated in 3.5% NaCl as a post-storage test medium. Thus, the electrochemical measurements characterize the corrosion resistance of honey-conditioned tinplate surfaces during subsequent exposure to the 3.5% NaCl test environment. Corrosion behavior was investigated using open-circuit potential (Eocp-t), potentiodynamic polarization (PP), and electrochemical impedance spectroscopy (EIS), supported by scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy-dispersive X-ray spectroscopy (EDX). The electrochemical evaluation showed that the corrosion current density (icorr) decreased from 0.192 to 0.014 μA cm-2 after 18 months, while the polarization resistance (Rp) increased continuously, indicating the progressive development of a more protective interfacial state. EIS results were consistent with progressive stabilization of the conditioned tinplate interface and enhanced resistance to electrochemical processes. The high-frequency inductive loop observed at early exposure disappeared after prolonged contact, consistent with progressive modification and stabilization of the interfacial state. Collectively, these findings suggest a surface-conditioning process during prolonged honey exposure, resulting in enhanced corrosion resistance of the conditioned tinplate surface during subsequent exposure to the NaCl test environment and potentially contributing to improved packaging durability.