Sensory and chemical stability in coated peanuts with the addition of essential oils and synthetic antioxidants
DOI:
https://doi.org/10.3989/gya.056711Keywords:
Arachis hypogaea, Laurel, Oregano, Rosemary, Shelf-lifeAbstract
The objective of this work was to evaluate the antioxidant effect of essential oils on the oxidative stability of coated peanuts. Untreated coated peanuts (CP) and treated coated peanuts with the addition of rosemary (CP-R), oregano (CP-O) and laurel (CP-L) essential oils and BHT (CPBHT) were prepared. Peroxide values (PV) and p-anisidine values (AV) and the intensity ratings of sensory attributes by descriptive analysis were measured during 112 days of storage at room temperature (23°C). CP-BHT exhibited the lowest PV and AV increase. CP-R, CP-O and CP-L showed lower rates of increase in PV and AV than CP. The oxidized and cardboard flavor intensity ratings increased much more in CP during storage than the other studied products. CPBHT also showed the lowest increase in the intensity ratings of these sensory attributes. Three essential oils, namely, laurel, oregano and rosemary showed antioxidant activity and increased the shelf life of coated peanuts.
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