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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

O-ATRP synthesized poly(beta-pinene) blended with chitosan for antimicrobial and antioxidant bio-based films production

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Author(s):
Rodrigues, Plinio Ribeiro [1] ; Marangoni Junior, Luis [2] ; de Souza, Weysser Felipe Candido [3] ; Sato, Helia Harumi [3] ; Alves, Rosa Maria Vercelino [2] ; Vieira, Ronierik Pioli [1]
Total Authors: 6
Affiliation:
[1] Univ Estadual Campinas, Sch Chem Engn, Dept Bioproc & Mat Engn, 13083-852 Albert Einstein St 500, BR-13083852 Campinas, SP - Brazil
[2] Packaging Technol Ctr, Inst Food Technol, Brasil Ave 2880, BR-13070178 Campinas, SP - Brazil
[3] Univ Estadual Campinas, Sch Food Engn, Dept Food Sci & Nutr, Monteiro Lobato St 80, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: International Journal of Biological Macromolecules; v. 193, n. A, p. 425-432, DEC 15 2021.
Web of Science Citations: 1
Abstract

Antioxidant and antimicrobial activities are important characteristics of active film packaging designed to extend food preservation. In this study, functional bio-based films were produced using different concentrations of antioxidant poly(beta-pinene) bio-oligomer synthesized via organocatalyzed atom transfer radical polymerization (O-ATRP) and blended with chitosan of different molecular weights. The structural, mechanical, thermal, solubility, antioxidant, and antimicrobial properties of the films were investigated. The poly(beta-pinene)-chitosan blends presented significant pores and irregularities with the increase of poly(beta-pinene) concentration over 30%. Chitosan molecular weight did not show any important influence in the physical properties of the blends. Poly (beta-pinene) load decreased the materials' tensile strength and melting temperature, exhibiting a plasticizing effect on chitosan chains. The antioxidant and antimicrobial activities of the films were improved by poly(beta-pinene) incorporation and mainly depended on its concentration. Therefore, the incorporation of poly(beta-pinene) in chitosan films can be an alternative for active packaging production. (AU)

FAPESP's process: 18/02508-5 - Synthesis of poly(limonene) via O-ATRP: a proposal to increase molar mass and absence of metal residues in the production of a renewable source polymer
Grantee:Roniérik Pioli Vieira
Support Opportunities: Regular Research Grants