Poly[(3‐hydroxybutyrate)‐<i>co</i>‐(3‐hydroxyvalerate)] active bilayer films obtained by compression moulding and applying essential oils at the interface

Requena, Raquel; Jiménez, Antonio José González; Vargas, María; Chiralt, Amparo

doi:10.1002/pi.5091

Cited by 36 publications

(40 citation statements)

References 46 publications

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“…A decrease in the PCL crystallization degree was also observed in CA-loaded fibres. These results point to the effective miscibility of CA and PCL in the fibres, which reduced the melting point and crystallinity of the polymer, as previously reported for CA containing PHBV (Requena, Jiménez, Vargas & Chiralt, 2016). TGA curves (Figure 7b) show the influence of the CA-load on the thermal behaviour of the mats.…”

Section: Multilayer Starch Films With Electrospun Plc Fibres With Andsupporting

confidence: 83%

Carvacrol encapsulation by electrospinning or solvent casting to obtain biodegradable multilayer active films for food packaging applications

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Section: Multilayer Starch Films With Electrospun Plc Fibres With Andsupporting

confidence: 83%

Carvacrol encapsulation by electrospinning or solvent casting to obtain biodegradable multilayer active films for food packaging applications

Tampau¹

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“…In this way, eugenol plasticized the matrix and also affected the tensile and barrier properties due to the weakening effect on the polymer network. In semi crystalline matrices, these compounds can also affect the degree of crystallinity [67]. On the other hand, using aqueous solvents leads to significant losses of the EO compounds due to a steam distillation effect at surface level during the film drying step.…”

Section: Incorporation Methods Of Eos or Their Compounds Into Polymermentioning

confidence: 99%

Biopolymers Carrying Essential Oils, or their Compounds, for Food Antimicrobial Packaging

Requena

Vargas

Atarés

et al. 2018

COC

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Biodegradable antimicrobial materials for food packaging applications are in great demand by the food industry and society alike for the purposes of extending food shelf life, thus reducing the environmental impacts associated with synthetic plastics. Among the natural and non-toxic active compounds available, essential oils and their major components have been widely studied due to their antioxidant and antimicrobial properties together with their Generally Recognized as Safe status. In this review, the antimicrobial and antioxidant properties of several essential oils and their major compounds are summarized, as well as their action when included in different biopolymer-based matrices. Both the method of incorporating active ingredients into the biopolymer matrix and the yield of such processes as a function of the technique used (casting methods or thermoplastic processing) are also assessed. The effect of active compounds on the film's functional properties is reviewed, as well as the effective release of the active ingredients into different food systems and food simulants, as affected by polymer-active interactions and the nature of the food. Finally, the antimicrobial action of some of these active compounds (embedded in different biopolymer matrices) is also discussed both in in vitro studies and in antimicrobial tests performed using foods of different composition.

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“…Limited research has been conducted on the incorporation of essential oils into PHAs and the studies conducted have focused only on SCL-PHAs. Films for antibacterial food packaging were produced using P(3HB-co-3HV) and two different essential oils such as oregano and clove, showing antibacterial activity against common food pathogens Listeria innocua 910 and E. coli 101 [35]. In another study, P(3HB-co-3HV) films were loaded with coconut fibres impregnated with oregano essential oil to produce composite antibacterial packaging materials, showing activity against S. aureus 6538P [36].…”

Section: Halo Testmentioning

confidence: 99%

Antimicrobial Materials with Lime Oil and a Poly(3-hydroxyalkanoate) Produced via Valorisation of Sugar Cane Molasses

Basnett

Marcello

Lukasiewicz

et al. 2020

JFB

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A medium chain-length polyhydroxyalkanoate (PHA) was produced by Pseudomonas mendocina CH50 using a cheap carbon substrate, sugarcane molasses. A PHA yield of 14.2% dry cell weight was achieved. Chemical analysis confirmed that the polymer produced was a medium chain-length PHA, a copolymer of 3-hydroxyoctanoate and 3-hydroxydecanoate, P(3HO-co-3HD). Lime oil, an essential oil with known antimicrobial activity, was used as an additive to P(3HO-co-3HD) to confer antibacterial properties to this biodegradable polymer. The incorporation of lime oil induced a slight decrease in crystallinity of P(3HO-co-3HD) films. The antibacterial properties of lime oil were investigated using ISO 20776 against Staphylococcus aureus 6538P and Escherichia coli 8739, showing a higher activity against the Gram-positive bacteria. The higher activity of the oil against S. aureus 6538P defined the higher efficiency of loaded polymer films against this strain. The effect of storage on the antimicrobial properties of the loaded films was investigated. After one-year storage, the content of lime oil in the films decreased, causing a reduction of the antimicrobial activity of the materials produced. However, the films still possessed antibacterial activity against S. aureus 6538P.

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Poly[(3‐hydroxybutyrate)‐co‐(3‐hydroxyvalerate)] active bilayer films obtained by compression moulding and applying essential oils at the interface

Abstract: The incorporation of natural antimicrobials, especially carvacrol and oregano essential oil, into bilayer films of poly[(3‐hydroxybutyrate)‐co‐(3‐hydroxyvalerate)] could be a promising option for the development of active biodegradable films.

Cited by 36 publications

References 46 publications

Carvacrol encapsulation by electrospinning or solvent casting to obtain biodegradable multilayer active films for food packaging applications

Carvacrol encapsulation by electrospinning or solvent casting to obtain biodegradable multilayer active films for food packaging applications

Biopolymers Carrying Essential Oils, or their Compounds, for Food Antimicrobial Packaging

Antimicrobial Materials with Lime Oil and a Poly(3-hydroxyalkanoate) Produced via Valorisation of Sugar Cane Molasses

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