Effects of Potato Starch Edible Coating Containing Ziziphora clinopodioides and Thymus daenensis Essential Oils on Chemical Organoleptic Properties of Chicken Breast
2019
Rajabian, Mojtaba | Bonyadian, Mojtaba | Abbasvali, Maryam | Khanjari, Ali
BACKGROUND: Using plastic compounds in food packaging industry creates a lot of problems for the environment. Edible coatings are biodegradable and can control the microbiological and chemical properties of foods. Using herbal essential oils improves the properties of coatings due to their antioxidants and antimicrobial specifications. OBJECTIVES: In this study the effect of potato starch edible coating containing Ziziphora clinopodioides and Thymus daenensis essential oils on chemical and sensory characteristics of refrigerated chicken breast, was evaluated. METHODS: The chicken breast was coated with potato starch containing 0, 0.5 and 1% concentrations of essential oils. Chemical (pH, TVN, TBARs) and sensory tests were performed on days 0, 3, 6, 9 and 12 on different samples stored at 4 °C. Statistical analysis was performed by SPSS software 22 using ANOWA and Nonparametric Kruskal Wallis tests. RESULTS: Treatments with different concentrations of essential oil showed lower values of pH, Thiobarbituric Acid (TBARs) and Total Volatile Nitrogen (TVN) compared to the control samples (P<0.05). CONCLUSIONS: Coating with potato starch enriched with different amounts of essential oils, has a preventive effect on chemical degradation. Essential oils with the concentration of 0.5% can be an optimal dose for improving the sensorial properties of chicken breast.
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