Application of Carboxymethyl Cellulose Based Coatings Containing Oleic Acid and Antimicrobial Compounds for Improving Quality and Extending Shelf-life of Egg

مجله پژوهشهای علوم و صنایع غذایی ایران

Article 8, Volume 8, Issue 2 - Serial Number 20, July 2012   

Document Type: Research Article

DOI: 10.22067/ifstrj.v8i2.17285

Authors

Shahram Mohammadi; Babak Ghanbarzadeh^* ; Mahood Sowti Khiabani; Shiva Ghiyasifar; Seyed Hossein Jalali

University of Tabriz

Abstract

During storage of eggs, unfavorable changes occur due to exertion of CO2 and water vapor from through of crust pinholes. One of the practical methods for preventing or reducing these changes is to use biopolymer-based coatings. In this research, five coating solutions based on carboxymethyl cellulose (CMC) and glycerol as plasticizer, oleic acid (1 and 2% V/V) and antimicrobial agents (potassium sorbate, natamycin and butylated hydroxyanisole) were prepared and their effects on physicochemical properties of the eggs (weight loss, pH, Haugh unit (HU) and yolk index (YI)) were evaluated at room temperature (25 ) during 5 weeks storage. The results showed that CMC- based coatings have considerable effects on quality of eggs and shelf life of them increased 1-3 weeks (depending on coating type). As well as, adding oleic acid to the CMC- based coating had positive significant effects (P < 0.05) on quality parameters of eggs during 5 week storage. Adding antimicrobial compounds also caused significant difference in all parameters, except yolk index, in comparison to CMC coating without antimicrobial compounds.

Keywords

Coating; Carboxymethyl Cellulose; Egg

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