The aim was to study the shelf-life over 18 months of storage (no light and oxygen exposure) of chili peppers flavoured olive oils comparing flavouring methods of co-milling of fresh chili peppers with sound olives at mill scale with temporary and permanent infusion of dried chili peppers in olive oil. Tocopherols, secoiridoids and capsaicinoids by HPLC-DAD, volatile compounds by HS-SPME-GC–MS, and sensory profiles were studied. The decrease in tocopherols and secoiridoids was greater in “infusion” samples, while a significant increase in capsaicinoids was observed in “permanent infusion” samples. The main changes were observed for sensory and volatile profiles: “infusion” samples were defective already after 2 months with significant increase of defects-relating volatile compounds, while “co-milling” samples were defects-free and characterized by nice balance among hotness/heat and pepper fruity/taste during entire storage. “Co-milling” samples showed better shelf-life (18 months) than infusion ones, and even than EVOO control samples (12 months).
Cecchi, L., Urciuoli, S., Ieri, F., Ugolini, T., D’Agostino, S., Breschi, C., Balli, D., Zanoni, B., Mulinacci, N., Food Chemistry, p.141817 (2024)
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