Biochemical changes in agro-products coated with pseudoprotein food coating: This research [PHDF-23-3114] has been supported by the Shota Rustaveli National Science Foundation of Georgia (SRNSFG)

Abstract

Fruits and vegetables are perishable agricultural products, therefore extent of the shelf life of agroproducts is an actual challenge. This review presents biochemical changes that occurred during shelf life in covered agro-products with edible coating, in particular changes in parameters that determine their commodity properties, such as water-soluble dry matter (BRIX), titratable acidity, and crude cellulose. Edible coating is an alternative to traditional storage methods. Such films have been used since the last century. The prospects of edible coatings for sustainable food preservation have increased according to their use. Nowadays they are a current trend of organic products packaging. In recent years, preference has been given to the use of biodegradable, environmentally friendly materials in the form of food coatings. The interest in the development of biodegradable edible films is increasing every day.  The aim of this study was to evaluate the effect of pseudoprotein applied as an edible coating. The research aims to determine the optimal storage conditions and, therefore obtain and apply different concentrations of pseudoprotein-based edible coating solutions for covering fruit and vegetable samples (apples, carrots). Products are stored at their suitable storage temperature. The results of the experiment emphasize the positive influence of pseudoproteins in extending the shelf life of agricultural products. Pseudoproteins have been mainly implemented in medicine as drug carriers and surgical implants, where they have shown high biocompatibility. Taking into account the potential of pseudoproteins to preserve agricultural products, it is possible to expand their scope and introduce them in the agriculture and food industry.