Biodegradable Polymer Packaging System for 'Benitaka' Table Grapes during Cold Storage.

A biodegradable polymer packaging system for 'Benitaka' table grapes ( L.) was developed to inhibit the development of gray mold during refrigerated storage. The system consisted of packages and sachets containing NaSO to release sulfur dioxide (SO), both produced with biodegradable films of starch, glycerol, and poly (adipate co-butylene terephthalate) (PBAT) produced via blown extrusion.

Lipase immobilization on biodegradable film with sericin.

An ecofriendly and low-cost film composed by cassava starch, polyvinyl alcohol, and sericin blend (CS-PVA-SS) was synthesized, characterized, and applied as a novel support for Botryosphaeria ribis EC-01 lipase immobilization by enzyme-film-enzyme adsorption. Film revealed thickness between 230 and 309 μm and higher flexibility and malleability in comparison with film without SS. Based on p-nitrophenyl palmitate hydrolysis reaction, the activity retention of immobilized lipase was 987%.

Production of starch-polyester bio-support for lipases immobilization: synergistic action of itaconic acid and nanoclay.

The objective of the present work was to develop biodegradable polymeric films (starch-PBAT) as support for the immobilization of lipases using sodium montmorillonite (MMT) as a reinforcing agent (2% ) and itaconic acid (IA - 0.5-1.5% ) as a compatibilizing agent.