Active packaging containing encapsulated carvacrol for control of postharvest decay

Shemesh, Rotem; Krepker, Maksym A.; Nitzan, Nadav; Vaxman, A.; Segal, Ester

doi:10.1016/j.postharvbio.2016.04.009

Cited by 57 publications

(33 citation statements)

References 35 publications

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“…For instance, in another study, carvacrol was encapsulated in halloysite nanotubes and subsequently incorporated into polyamide polymers by extrusion. The results showed that polymers containing halloysites retained approximately 90% of the initial carvacrol content; while for the control PA/carvacrol system, no residual carvacrol was detected due to carvacrol evaporation [191]. Similar results were obtained for LDPE containing halloysite nanotubes encapsulating mixtures of carvacrol and thymol [190].…”

Section: Halloysites Nanotubessupporting

confidence: 65%

Encapsulation Systems for Antimicrobial Food Packaging Components: An Update

2020

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Antimicrobial active packaging has emerged as an effective technology to reduce microbial growth in food products increasing both their shelf-life and microbial safety for the consumer while maintaining their quality and sensorial properties. In the last years, a great effort has been made to develop more efficient, long-lasting and eco-friendly antimicrobial materials by improving the performance of the incorporated antimicrobial substances. With this purpose, more effective antimicrobial compounds of natural origin such as bacteriocins, bacteriophages and essential oils have been preferred over synthetic ones and new encapsulation strategies such as emulsions, core-shell nanofibres, cyclodextrins and liposomes among others, have been applied in order to protect these antimicrobials from degradation or volatilization while trying to enable a more controlled release and sustained antimicrobial action. On that account, this article provides an overview of the types of antimicrobials agents used and the most recent trends on the strategies used to encapsulate the antimicrobial agents for their stable inclusion in the packaging materials. Moreover, a thorough discussion regarding the benefits of each encapsulation technology as well as their application in food products is presented.

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Section: Halloysites Nanotubessupporting

confidence: 65%

Encapsulation Systems for Antimicrobial Food Packaging Components: An Update

2020

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“…They are characterized by high mechanical strength and modulus, and due to their hollow nanostructure they are widely used for loading and controlled release of functional compounds (Makaremi et al, 2017;Yang et al, 2016;Huang et al, 2016;Saif and Asif, 2015;Lvov et al, 2016a). HNTs are used in, e.g., self-healing anticorrosive coatings (Wei et al, 2015), hydrogen production and storage (Sahiner and Sengel, 2017;Jin et al, 2017), pharmaceutical excipients (Hanif et al, 2016;Lvov et al, 2016b;Yendluri et al, 2017), biomedical applications Bonifacio et al, 2017), cosmetics (Saif and Asif, 2015), active food packaging materials (Shemesh et al, 2016;Tas et al, 2017;Krepker et al, 2017), water treatment (Yu et al, 2016), and for improvement the mechanical properties and thermal stability of polymer composites (Liu et al, 2014). Globally, HNTs annual production is over 50,000 metric tonnes (Lvov et al, 2008), which is similar to that of carbon fibers (40,000 t/y; Gutiérrez and Bono, 2013), and approximately 10 times higher than the production of carbon nanotubes which is only ca.…”

Section: Introductionmentioning

confidence: 99%

“…The product is used for example in active food packaging materials, which have been reported to reduce bacterial growth by up to seven orders of magnitude, thereby increasing the shelf life of perishable foods (Shemesh et al, 2016;Tas et al, 2017;Krepker et al, 2017). Here we assessed workers inhalation exposure by measuring air concentrations using diffusion chargers and by sampling airborne particles for gravimetric and electron microscopy analysis.…”

Section: Introductionmentioning

confidence: 99%

Occupational exposure during handling and loading of halloysite nanotubes – A case study of counting nanofibers

et al. 2018

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A B S T R A C THalloysite nanotubes (HNTs) are abundant naturally-occurring hollow aluminosilicate clay mineral fibers with a typical diameter < 100 nm and an aspect ratio of up to 200. Here we assessed the potential inhalation exposure to HNTs in an industrial research laboratory. Inside a fume hood, ten times 100 g of HNTs were poured at rate of 0.5 kg min . Inside the fume hood, the respirable mass concentration was 143 μg m −3 including background particles.Outside the fume hood we did not measure elevated concentrations. We classified 1895 particles according to their length and aspect ratio. Five particles were in aspect ratio > 3 and in length > 2 μm. These particles were agglomerated and/or aggregated particles where the longest individual fiber was 2 μm in length. The occupational exposure limits for refractory mineral fibers vary from 0.1 to 2 fibers cm −3. Following standard protocols for fiber analysis, detection of 0.1 fibers cm −3 would require analysis on 4 × 10 4 images when the filter loading is good. Thus, the fiber sampling and quantification procedures needs to be improved significantly if nanofibers < 100 nm in diameter are included in regulatory exposure assessment. Due to very limited toxicological information of HNTs we recommend avoiding inhalation exposure.

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“…17,18,19 The HNT cavity is suitable for the encapsulation of active molecules with antioxidant and antimicrobial capacity. 20,21 Biocompatibility of halloysite has been proved for yeast, 22 bacteria, 23 nematodes 24 and human cell cultures. 25 Kao is an aluminosilicate mineral characterized by a sheet-like geometry.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Biopolymer Charge and the Nanoclay Morphology on Nanocomposite Materials

Bertolino

Cavallaro

Merli

et al. 2016

Ind. Eng. Chem. Res.

107

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This work represents a contribution to the design, preparation and characterization of nanocomposite materials based on biocompatible components. The effect of composition, filler geometry and polymer charge were highlighted and their role on the final properties of the nanocomposites was revealed. We combined some biopolymers (methylcellulose, alginate, chitosan) with two nanoclays (kaolinite sheets and halloysite nanotubes) to prepare nanocomposites by means of the casting method from water. The thermal stability, the surface wettability, the mechanical properties of the obtained films were studied. SEM micrographs highlighted the surface morphology of the biocomposite materials. X-ray data allowed us to correlate the mesoscopic structure to the properties of these nanocomposites.

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Active packaging containing encapsulated carvacrol for control of postharvest decay

Cited by 57 publications

References 35 publications

Encapsulation Systems for Antimicrobial Food Packaging Components: An Update

Encapsulation Systems for Antimicrobial Food Packaging Components: An Update

Occupational exposure during handling and loading of halloysite nanotubes – A case study of counting nanofibers

Effect of the Biopolymer Charge and the Nanoclay Morphology on Nanocomposite Materials

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