Pectin-based edible films and coatings: From extraction to application on food packaging towards circular economy- A review

Abstract

• Pectin derived from agricultural waste and food by-products is a natural polysaccharide associated with sustainable materials. • Pectin extracted using conventional or non-conventional methods can be used to produce edible film and coating. • Addition of plasticizer and active agents improves physical, mechanical, barrier, and optical properties of edible film and coating. • The fabrication method of edible film and coating and their application impact the shelf-life of food products. • Utilization of edible film and coating play an important role in developing more sustainable and environmentally friendly packaging, which is an integral part of the circular economy. Pectin-based edible films and coatings have witnessed significant application in fresh food and processed food due to their functionalities as a carrier for active compounds and as a barrier against moisture and gases, which can help maintain the freshness and prolong the shelf-life of food products without sacrificing the sensory acceptance of food products. The current review covers the source and extraction methods of pectin, the use of plasticizers and active agents, the fabrication methods employed, and the application of these films and coating on food products. Thus, using pectin-based edible films and coatings in the food industry is important because it reduces agricultural waste and utilizes by-products of the food processing industry, thereby stimulating sustainable food packaging towards a circular economy.

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