Abstract

HERRERA-BALANDRANO, Daniela D. et al. Conservation of chicken breasts with mexican oregano essential oil. Biotecnia [online]. 2020, vol.22, n.2, pp.119-127.  Epub Aug 07, 2020. ISSN 1665-1456.  https://doi.org/10.18633/biotecnia.v22i2.1253.

Chicken breast was marinated with oregano oil (OO) to evaluate its quality over 14 days at 4 °C. Treatments were T1 = marinated chicken breast without OO, T2 = marinated chicken breast + 2000 mg/kg of OO, and T3 = marinated chicken breast + 4000 mg/kg of OO. Chicken breast with OO showed higher and lower (p < 0.05) values of pH after over 1 and 7 days, respectively. T2 had higher (p < 0.05) values on lightness and T3 the highest (p < 0.05) yellowness. Protein content showed the maximum (p < 0.05) value at 14 days. At these days T1, T2 y T3 given higher (p < 0.05) values on antioxidant capacity, mesophilic, psychrophilic and lactic acid bacteria. These treatments obtained the lowest (p < 0.05) fungi and yeast number. Chicken breast texture presented the highest (p < 0.05) values at 14 d. T2 and T3 improved (p < 0.05) the acceptance of global odor and oregano odor at 7 and 14 d, while hardness and overall acceptability for T2 were the best (p < 0.05) at 14 d. Oregano oil can be used (2000 and 4000 g/kg) into chicken breast marinated to preserve their physicochemical traits, nutrient content, texture and acceptability.

Keywords : antioxidant; lactic bacteria; marinated; texture; sensory.

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