Physico-Chemical and Antiadhesive Properties of Poly(Lactic Acid)/Grapevine Cane Extract Films against Food Pathogenic Microorganisms
| Autor: | Octavio Dublán-García, Claudia Mardones, F.J. Vazquez-Armenta, Aleksandra Nesic, Jesús Fernando Ayala-Zavala, Gustavo Cabrera-Barjas, Saúl Aguilar-Montes de Oca, Rosa Isela Ventura-Aguilar, Edaena Pamela Díaz-Galindo |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Polymers and Plastics
Pectobacterium carotovorum Polylactic acid (PLA) film 02 engineering and technology stilbenes medicine.disease_cause Article lcsh:QD241-441 chemistry.chemical_compound Food packaging 0404 agricultural biotechnology Listeria monocytogenes lcsh:Organic chemistry Stilbenes medicine Thermal stability Food science Botrytis cinerea biology Chemistry technology industry and agriculture food and beverages 04 agricultural and veterinary sciences General Chemistry 021001 nanoscience & nanotechnology Saccharomyces pastorianus biology.organism_classification Antimicrobial 040401 food science Lactic acid surface microbial adhesion 13. Climate action polylactic acid (PLA) film Surface microbial adhesion 0210 nano-technology food packaging |
| Zdroj: | Polymers, Vol 12, Iss 2967, p 2967 (2020) Polymers Volume 12 Issue 12 |
| ISSN: | 2073-4360 |
| Popis: | The aim of this study was evaluation of the physico-chemical properties and adhesion of microorganisms on poly(lactic acid) (PLA)-based films loaded with grapevine cane extract (5&ndash 15 wt%). The films were processed in a compression molding machine and characterized by mechanical, thermal, water vapor barrier and microbiological tests. The best physical-chemical properties for PLA film containing 10 wt% of extract were obtained. The addition of 10 wt% of extract into PLA films led to decrease of tensile strength for 52% and increase in elongation at break for 30%. The water vapor barrier of this film formulation was enhanced for 55%. All films showed thermal stability up to 300 ° C. The low release of the active compounds from films negatively influenced their antimicrobial and antifungal activity. Botrytis cinerea growth inhibition onto PLA containing extracts (PLA-E) films was in the range between 15 and 35%. On the other side, PLA/extract films exhibited the antiadhesive properties against Pseudomonas aeruginosa, Pectobacterium carotovorum, Saccharomyces pastorianus, and Listeria monocytogenes, which could imply their potential to be used as sustainable food packaging materials for preventing microbial contamination of food. |
| Databáze: | OpenAIRE |
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