Antimicrobial Activity and GC-MS Profile of Copaiba Oil for Incorporation into Xanthosoma mafaffa Schott Starch-Based Films
| Autor: | José Ignacio Velasco, Rosemary Aparecida de Carvalho, Vitor Augusto dos Santos Garcia, Cristina Tostes Filgueiras, Farayde Matta Fakhouri, Giovana de Menezes Rodrigues |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Polymers and Plastics
Starch Food containers 02 engineering and technology Antimicrobial activity Enginyeria dels materials [Àrees temàtiques de la UPC] Copaiba Oil lcsh:QD241-441 chemistry.chemical_compound 0404 agricultural biotechnology Unconventional starch lcsh:Organic chemistry complex coacervation unconventional starch Ultimate tensile strength Biodegradable packaging Solubility Copaifera sp Midó antimicrobial activity Chemistry 04 agricultural and veterinary sciences General Chemistry 021001 nanoscience & nanotechnology Antimicrobial 040401 food science biodegradable packaging Complex coacervation Envasos d'aliments -- Innovacions tecnològiques Gas chromatography Gas chromatography–mass spectrometry Elongation 0210 nano-technology Nuclear chemistry |
| Zdroj: | Polymers Volume 12 Issue 12 Polymers, Vol 12, Iss 2883, p 2883 (2020) Polymers (Basel), vol. 12, no. 12 UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 2073-4360 |
| DOI: | 10.3390/polym12122883 |
| Popis: | The present study evaluated the effect of the incorporation of copaiba oil, in direct and in microencapsulated form, into films based on Xanthosoma mafaffa Schott starch. Initially, the characterization of copaiba oil by gas chromatograph coupled with mass spectrometry (GC-MS) and its antimicrobial activity against gram-positive and gram-negative bacteria was performed. The films were produced by the casting technique and characterized in relation to physical, chemical, structural, and antimicrobial activity. Sesquiterpenes, mainly &beta caryophyllene, were the predominant compounds in copaiba oil, showing antimicrobial activity against B. subtilis and S. aureus. The films showed forming capacity, however, was observed a decrease in solubility and revealed an increase in hydrophobic characteristics. However, the oil reduced the tensile strength and elongation, while the microcapsules did not influence the mechanical properties in comparison to the control film. From microstructure analysis, changes in the films roughness and surface were observed after the addition of oil both directly and in microencapsulated form. Films incorporated with microparticles were able to inhibit the gram-positive bacteria tested, forming inhibition zones, indicating that the encapsulation of copaiba oil was more efficient for protecting bioactive compounds from the oil, suggesting the possible application of mangarito starch-based films incorporated with copaiba oil as biodegradable packaging. |
| Databáze: | OpenAIRE |
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