Parsley (Petroselinum crispum Mill.): A source of bioactive compounds as a domestic strategy to minimize cholesterol oxidation during the thermal preparation of omelets
2022
de Oliveira, Vanessa Sales | Chávez, Davy William Hidalgo | Paiva, Paula Renata Felipe | Gamallo, Ormindo Domingues | Castro, Rosane Nora | Sawaya, Alexandra Christine Helena Frankland | Sampaio, Geni Rodrigues | Torres, Elizabeth Aparecida Ferraz da Silva | Saldanha, Tatiana
This study evaluated the protective effect of parsley (Petroselinum crispum Mill.) against lipid and cholesterol oxidation in omelets prepared by air frying, pan frying, and microwaving. The bioactive composition and in vitro antioxidant capacity of parsley extract was characterized. Compounds such as phenolic acids and their derivatives (p-coumaric acid, p-coumaric acid 4-O-hexoside) and flavonoids (apigenin 7-glucoside, quercetin-O-pentosyl-hexoside) were identified in parsley by UHPLC-ESI-MS. Moreover, the presence of these bioactive constituents was investigated in omelets. Cooking induced lipid oxidation and increased the level of cholesterol oxidation products (COPs) in control omelets, which was more pronounced after air frying and microwaving. The total content of COPs increased from 40.69 ± 2.26 μg/g (raw) to 821.05 ± 13.77 μg/g (air frying), 805.21 ± 14.50 μg/g (microwaving), and 311.07 ± 13.84 μg/g (pan frying). The addition of parsley proved to be effective reducing COPs formation, mainly in air-fried samples with 0.75% parsley (81.73% of protection). Chromatographic analyses revealed the thermo-degradation of parsley compounds, since only two flavonoids detected in parsley were found in omelets containing the herb after cooking. Nonetheless, these findings indicate the potential application of parsley as a natural inhibitor of cholesterol and lipid oxidation in food systems such as omelets.
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