Native and modified biodegradable starch‐based packaging for shelf‐life extension and safety of fruits/vegetables

Abstract

SummaryFruits/vegetables are perishable, and physical damage, moisture loss, metabolic changes and post‐harvest microbial deterioration are the main reasons for the quality loss and short shelf‐life. To address this issue, starch‐based packaging films always have been the subject of ongoing interest. The current review examines the advances in starch‐based materials, covering basic and applied research. The shelf‐life of foods can be increased by using starch‐based films with antimicrobial, antioxidant, ultraviolet resistance, oxygen and moisture barrier and pH‐reactive qualities as packaging materials. Various composites have been designed to address the shortcomings of pure starch‐based materials, including moisture sensitivity and inferior tensile qualities inherent in natural polymers. Practically, the development of entirely biodegradable starch‐based polymers is sensitive to the integration of any additives. The main challenge in commercialising starch‐based biodegradable packaging film is the structural changes in starch complex molecules that have a considerable impact on the functional qualities of films. This review also highlights using native, modified, nano‐composite and antimicrobial starch‐based films to enhance the shelf‐life and qualities of fresh produce.