Electrospun Antimicrobial Films of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Containing Eugenol Essential Oil Encapsulated in Mesoporous Silica Nanoparticles
Por:
B. MELENDEZ-RODRIGUEZ, K. FIGUEROA-LOPEZ, A. BERNARDOS, R. MARTINEZ-MANEZ, L. CABEDO, S. TORRES-GINER and J. LAGARON
Publicada:
1 feb 2019
Resumen:
The main goal of this study was to develop poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films with long-term antimicrobial capacity of interest in food packaging applications. To this end, eugenol was first highly efficiently encapsulated at 50 wt.-% in the pores of mesoporous silica nanoparticles by vapor adsorption. The eugenol-containing nanoparticles were then loaded in the 2.5-20 wt.-% range into PHBV by electrospinning and the resultant electrospun composite fibers were annealed at 155 degrees C to produce continuous films. The characterization showed that the PHBV films filled with mesoporous silica nanoparticles containing eugenol present sufficient thermal resistance and enhanced mechanical strength and barrier performance to water vapor and limonene. The antimicrobial activity of the films was also evaluated against foodborne bacteria for 15 days in open vs. closed conditions in order to simulate real packaging conditions. The electrospun PHBV films with loadings above 10 wt.-% of mesoporous silica nanoparticles containing eugenol successfully inhibited the bacterial growth, whereas the active films stored in hermetically closed systems increased their antimicrobial activity after 15 days due to the volatile portion accumulated in the system's headspace and the sustained release capacity of the films. The resultant biopolymer films are, therefore, potential candidates to be applied in active food packaging applications to provide shelf life extension and food safety.
Filiaciones:
B. MELENDEZ-RODRIGUEZ:
Spanish Council Sci Res CSIC, Novel Mat & Nanotechnol Grp, Inst Agrochem & Food Technol IATA, Calle Catedrat Agustin Escardino Benlloch 7, Paterna 46980, Spain
K. FIGUEROA-LOPEZ:
Spanish Council Sci Res CSIC, Novel Mat & Nanotechnol Grp, Inst Agrochem & Food Technol IATA, Calle Catedrat Agustin Escardino Benlloch 7, Paterna 46980, Spain
:
Univ Valencia, Univ Politecn Valencia, Inst Interuniv Invest Reconocimiento Mol & Desarr, Cami Vera S-N, Valencia 46022, Spain
CIBER BBN, Camino Vera S-N, Valencia 46022, Spain
Univ Politecn Valencia, Inst Invest Sanitaria La Fe, Unidad Mixta Invest Nanomed & Sensores, Valencia 46026, Spain
Univ Politecn Valencia, Ctr Invest Principe Felipe, Unidad Mixta UPV CIPF Invest Mecanismos Enfermeda, Valencia 46012, Spain
:
Univ Valencia, Univ Politecn Valencia, Inst Interuniv Invest Reconocimiento Mol & Desarr, Cami Vera S-N, Valencia 46022, Spain
CIBER BBN, Camino Vera S-N, Valencia 46022, Spain
Univ Politecn Valencia, Inst Invest Sanitaria La Fe, Unidad Mixta Invest Nanomed & Sensores, Valencia 46026, Spain
Univ Politecn Valencia, Ctr Invest Principe Felipe, Unidad Mixta UPV CIPF Invest Mecanismos Enfermeda, Valencia 46012, Spain
L. CABEDO:
Univ Jaume 1, Polymers & Adv Mat Grp PIMA, I-12071 Castellon de La Plana, Spain
S. TORRES-GINER:
Spanish Council Sci Res CSIC, Novel Mat & Nanotechnol Grp, Inst Agrochem & Food Technol IATA, Calle Catedrat Agustin Escardino Benlloch 7, Paterna 46980, Spain
J. LAGARON:
Spanish Council Sci Res CSIC, Novel Mat & Nanotechnol Grp, Inst Agrochem & Food Technol IATA, Calle Catedrat Agustin Escardino Benlloch 7, Paterna 46980, Spain
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