Abstract
The pomegranate fruit is rich in many nutrients characterized by a variety of biologically-active and secondary metabolites. However, pomegranate fruits are prone to postharvest water loss, chilling injuries, physical disorders and fungal diseases. Various methods such as high hydrostatic pressure, ultrasound and gamma irradiation, synthetic fungicides, preservatives, controlled atmosphere and modified atmosphere storages, and edible coatings are used for preserving fruits and minimizing changes in their quality. New alternative technologies, such as the coating of agricultural commodities, have been employed to reduce the postharvest losses of fresh fruits and vegetables, and improve their shelf life. Edible films and coatings, including various chemicals, oils, essential oils, and/or a combination of oils and edible coatings, have been used to enhance the shelf life, quality and safety of minimally processed fruits. Therefore, the present study examines the efficacy of edible coating in maintaining the quality of pomegranate fruits and extending the shelf life of freshly dissected pomegranate arils.
Highlights
The pomegranate fruit is rich in many nutrients characterized by a variety of biologically-active and secondary metabolites
The pomegranate is the fruit of Punica granatum L. (Punicaceae), which is widely produced in the Mediterranean area
While Romeroa et al (2012) obtained no significant differences between coating treatments in regard to the total soluble solid content (TSS), Ghasemnezhad et al (2013) reported that the highest TSS was observed in the control sample
Summary
Materials commonly used for the coating of pomegranate arils are chitosan, starch with N. sativa oil acids (citric, ascorbic and acetic acid) and Aloe vera gel (Ghasemnezhad et al, 2013; Oz and Ulukanli, 2011; Varasteh et al, 2012; Romeroa et al, 2012; Nabigol and Asghari (2013); Ozdemir and Gökmen, 2017). It was suggested in previous studies that further research should be conducted regarding the effect of edible coating materials on different cultivars grown in different geographical locations. The present study examines the efficacy of edible coating in maintaining the quality and extending the shelf life of freshly dissected pomegranate arils. Modified atmospheres, applying chemical agents and the UV irradiation), edible coating is one of the most accepted methods
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