Poly(lactic acid)-based composite film reinforced with acetylated cellulose nanocrystals and ZnO nanoparticles for active food packaging

Thymol (TH), which has antimicrobial effect on many food pathogens, was incorporated as antimicrobial agent into composite poly (lactic acid)/poly (trimethylene carbonate)(PLA-PTMC) films. Antimicrobial active films based on PLA-PTMC were prepared by incorporating thymol at five different concentrations: 0, 3, 6, 9 and 12 %(w/w). The mechanical characterization, water vapor permeability (WVP), and antimicrobial activity of all formulations composite film were carried out. A decrease in elastic modulus was obtained for the active composite film compared with neat PLA-PTMC film. The presence of thymol decreased water vapor permeability, with a significant antimicrobial activity. Antimicrobial activities of films were tested against Escherichia coli, Staphylococcus aurous, Listeria, Bacillus subtilis, and Salmonella. Increasing amount of the thymol in the film caused a significant increase in inhibitory zones. These results suggest that thymol incorporated PLA-PTMC films have a prospectively potential in antimicrobial food packaging.

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Soy protein – Poly (lactic acid) bilayer films as biodegradable material for active food packaging

Food Hydrocolloids ◽

10.1016/j.foodhyd.2013.03.010 ◽

2013 ◽

Vol 33 (2) ◽

pp. 289-296 ◽

Cited By ~ 124

Author(s):

Agustín González ◽

Cecilia I. Alvarez Igarzabal

Keyword(s):

Lactic Acid ◽

Soy Protein ◽

Food Packaging ◽

Poly Lactic Acid ◽

Biodegradable Material ◽

Bilayer Films ◽

Active Food Packaging

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Plasticized Poly(lactic acid)–Poly(hydroxybutyrate) (PLA–PHB) Blends Incorporated with Catechin Intended for Active Food-Packaging Applications

Journal of Agricultural and Food Chemistry ◽

10.1021/jf5029812 ◽

2014 ◽

Vol 62 (41) ◽

pp. 10170-10180 ◽

Cited By ~ 112

Author(s):

Marina Patricia Arrieta ◽

María del Mar Castro-López ◽

Emilio Rayón ◽

Luis Fernando Barral-Losada ◽

José Manuel López-Vilariño ◽

...

Keyword(s):

Lactic Acid ◽

Food Packaging ◽

Poly Lactic Acid ◽

Active Food Packaging

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Poly(lactic) acid fibers loaded with mesoporous silica for potential applications in the active food packaging

10.1063/1.4952057 ◽

2016 ◽

Cited By ~ 6

Author(s):

Ilaria Cacciotti ◽

Francesca Nanni

Keyword(s):

Lactic Acid ◽

Mesoporous Silica ◽

Food Packaging ◽

Poly Lactic Acid ◽

Active Food Packaging ◽

Potential Applications

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Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites

Molecules ◽

10.3390/molecules25061310 ◽

2020 ◽

Vol 25 (6) ◽

pp. 1310 ◽

Cited By ~ 4

Author(s):

Zhenya Tang ◽

Fangling Fan ◽

Zhuangzhuang Chu ◽

Chunli Fan ◽

Yuyue Qin

Keyword(s):

Tensile Strength ◽

Lactic Acid ◽

Zno Nanoparticles ◽

Food Packaging ◽

Ternary Systems ◽

Poly Lactic Acid ◽

Vapor Permeability ◽

Scanning Calorimetry ◽

Electron Microscopic ◽

Nano Zno

This study aimed to reinforce the barrier performance (i.e., oxygen–gas and water–vapor permeability) of poly(lactic acid) (PLA)-based films. Acetyltributylcitrate and zinc oxide nanoparticle (nano-ZnO), serving as plasticizer and nanofiller, respectively, were blended into a PLA matrix through a solvent-volatilizing method. The structural, morphological, thermal, and mechanical performances were then studied. Scanning electron microscopic images showed a significant dispersion of nano-ZnO in PLA ternary systems with low nano-ZnO content. The interaction between PLA matrix and ZnO nanoparticles was further analyzed by Fourier-transform infrared spectroscopy. Wide-angle X-ray scattering spectroscopy demonstrated high compatibility between PLA matrix and ZnO nanoparticles. Mechanical property studies revealed good tensile strength and low flexibility. Differential scanning calorimetry curves proved that an amorphous structure mostly existed in PLA ternary systems. The improvements in barrier property and tensile strength indicated that the PLA/nano-ZnO composite films could be used for food packaging application.

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