Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging
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 o...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-05-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/12/5/1183 |
| _version_ | 1797567298469363712 |
|---|---|
| author | Marco Aldo Ortenzi Stefano Gazzotti Begonya Marcos Stefano Antenucci Stefano Camazzola Luciano Piergiovanni Hermes Farina Giuseppe Di Silvestro Luisella Verotta |
| author_facet | Marco Aldo Ortenzi Stefano Gazzotti Begonya Marcos Stefano Antenucci Stefano Camazzola Luciano Piergiovanni Hermes Farina Giuseppe Di Silvestro Luisella Verotta |
| author_sort | Marco Aldo Ortenzi |
| collection | DOAJ |
| description | 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 <span style="font-variant: small-caps;">l</span>-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. |
| first_indexed | 2024-03-10T19:40:43Z |
| format | Article |
| id | doaj.art-8278860ed08d4184b3e5a5efec79f5fa |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T19:40:43Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-8278860ed08d4184b3e5a5efec79f5fa2023-11-20T01:18:07ZengMDPI AGPolymers2073-43602020-05-01125118310.3390/polym12051183Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food PackagingMarco Aldo Ortenzi0Stefano Gazzotti1Begonya Marcos2Stefano Antenucci3Stefano Camazzola4Luciano Piergiovanni5Hermes Farina6Giuseppe Di Silvestro7Luisella Verotta8Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyDepartment of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyIRTA, Food Technology, Finca Camps i Amet s/n, 17121 Monells, SpainDepartment of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyDepartment of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyCRC Materiali Polimerici (LaMPo), Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyDepartment of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyDepartment of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, ItalyDepartment of Environmental Science and Policy, via Celoria 2, University of Milan, 20133 Milan, ItalyPolylactide (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 <span style="font-variant: small-caps;">l</span>-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.https://www.mdpi.com/2073-4360/12/5/1183polylactic acidphenolic antioxidantvanillyl alcoholactive food packagingsalamishelf life |
| spellingShingle | Marco Aldo Ortenzi Stefano Gazzotti Begonya Marcos Stefano Antenucci Stefano Camazzola Luciano Piergiovanni Hermes Farina Giuseppe Di Silvestro Luisella Verotta Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging Polymers polylactic acid phenolic antioxidant vanillyl alcohol active food packaging salami shelf life |
| title | Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging |
| title_full | Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging |
| title_fullStr | Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging |
| title_full_unstemmed | Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging |
| title_short | Synthesis of Polylactic Acid Initiated through Biobased Antioxidants: Towards Intrinsically Active Food Packaging |
| title_sort | synthesis of polylactic acid initiated through biobased antioxidants towards intrinsically active food packaging |
| topic | polylactic acid phenolic antioxidant vanillyl alcohol active food packaging salami shelf life |
| url | https://www.mdpi.com/2073-4360/12/5/1183 |
| work_keys_str_mv | AT marcoaldoortenzi synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT stefanogazzotti synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT begonyamarcos synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT stefanoantenucci synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT stefanocamazzola synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT lucianopiergiovanni synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT hermesfarina synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT giuseppedisilvestro synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging AT luisellaverotta synthesisofpolylacticacidinitiatedthroughbiobasedantioxidantstowardsintrinsicallyactivefoodpackaging |