ArticleFoods (Basel, Switzerland)2025
Impact of Bottle Type and Gelatin-Based Film Strips with Ethyl Sinapate on Oxidative Status and Antioxidant Properties of Cold-Pressed Rapeseed Oil.
Article in Foods (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Cold-pressed rapeseed oil aligns well with the trend of growing demand for minimally processed, health-promoting food products. It is essential to identify suitable storage conditions that protect cold-pressed rapeseed oil from oxidation, thereby extending its shelf life. In this study, the effect of gelatin/polyvinyl alcohol film strips enriched with ethyl sinapate (GPE) and immersed in cold-pressed rapeseed oil samples was evaluated during an accelerated storage test (14 days at 40 ± 1 °C under light (power of luminous flux = 385 lm). The influence of bottle type differing in shape (Marasca and Dorica) and glass colour (amber and clear) was also assessed. The incorporation of GPE into the stored oils enhanced their antioxidant activity (AA) determined by 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS = 1956.78-2334.10 µmol Trolox (TE)/100 g), 2,2-diphenyl-1-picrylhydrazyl (DPPH = 528.29-691.19 µmol TE/100 g), ferric reducing antioxidant power methods (FRAP = 454.14-511.61 µmol TE/100 g) and total phenolic content (TPC = 41.62-47.25 mg sinapic acid (SA)/100 g) compared to oils without film strips (ABTS = 1217.89 -1422.80 µmol TE/100 g, DPPH = 376.85-464.13 µmol TE/100 g, FRAP = 98.28-126.40 µmol TE/100 g and TPC = 6.38-8.02 mg SA/100 g) after first week of storage and confirmed the effective gradual release of ethyl sinapate from films to oils during two weeks of accelerated storage (ABTS = 2064.80-3086.47 µmol TE/100 g, DPPH = 597.11-854.37 µmol TE/100 g, FRAP =428.00-599.76 µmol TE/100 g, and TPC = 35.02-57.19 mg SA/100 g). Moreover, the GPE inhibited oil deterioration by reducing both primary (peroxide value (PV) = 3.75-5.11 meq O
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