Synthesis of polylactic acid initiated through biobased antioxidants: Towards intrinsically active food packaging
Ortenzi, Marco Aldo
Di Silvestro, Giuseppe
Polylactide (PLA)-based polymers, functionalized with biobased antioxidants, were synthesized, to develop an intrinsically active, biobased and potentially biodegradable material for food packaging applications. To achieve this result, phenolic antioxidants were exploited as initiators in the ring opening polymerization of l-lactide. The molecular weight, thermal properties and in vitro radical scavenging activity of the polymers obtained were compared with the ones of a PLA Natureworks 4043D, commonly used for ﬂexible food packaging applications. The most promising synthesized polymer, bearing vanillyl alcohol as initiator (PLA-VA), was evaluated for active food packaging applications. Packaging with PLA-VA ﬁlms reduced color and fat oxidation of salami during its shelf life.
Updated version (Reprint)
663/664 - Aliments i nutrició. Enologia. Olis. Greixos
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Ortenzi, Marco Aldo, Stefano Gazzotti, Begonya Marcos, Stefano Antenucci, Stefano Camazzola, Luciano Piergiovanni, Hermes Farina, Giuseppe Di Silvestro, and Luisella Verotta. 2020. "Synthesis Of Polylactic Acid Initiated Through Biobased Antioxidants: Towards Intrinsically Active Food Packaging". Polymers 12 (5): 1183. MDPI AG. doi:10.3390/polym12051183.
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