Development of flexible antimicrobial zein coatings with essential oils for the inhibition of critical pathogens on the surface of whole fruits: Test of coatings on inoculated melons

Boyacı, Derya; Iorio, Gianmarco; Sözbilen, Gözde Seval; Alkan, Derya; Trabattoni, Silvia; Pucillo, Flavia; Farris, Stefano; Yemenicioğlu, Ahmet

doi:10.1016/j.fpsl.2019.100316

Cited by 62 publications

(25 citation statements)

References 60 publications

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“…However, Boyacı et al . () reported that zein films with 2% EUG caused almost 3.3 D reduction in listerial counts of some melon cultivars (Santa Claus and Crenshaw) having smooth to slightly rough rind surface within 1 week of cold storage. This result indicated the possibility that the pectin emulsion coatings with EUG are slightly less effective on whole melon surfaces than zein coatings with EUG.…”

Section: Resultsmentioning

confidence: 99%

“…The antimicrobial activity of freshly prepared pre‐cast FPEC‐EUG and CPEC‐EUG films containing EUG between 0.25% and 2% (w/w) was tested under aseptic conditions by the agar diffusion method as reported by Boyacı et al . () using L. innocua as test microorganism. The discs (diameter: 1.3 cm) of pre‐cast and dried films were formed at aseptic conditions by a cork borer.…”

Section: Methodsmentioning

confidence: 99%

“…Edible films of chitosan, alginate and zein incorporated with different natural and chemical agents (e.g. cinnamon oil, allyl isothiocyanate, eugenol, nisin, lauric arginate, ethylenediaminetetraacetic acid) have been applied for coating of whole melons (Chen et al ., ; Ma et al ., ; Boyacı et al ., ). However, studies related to the application of emulsion‐based pectin coatings incorporated with natural antimicrobials for coating of whole melons are scarce.…”

Section: Introductionmentioning

confidence: 97%

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Development of pectin–eugenol emulsion coatings for inhibition of Listeria on webbed‐rind melons: a comparative study with fig and citrus pectins

Çavdaroğlu

Farris

Yemenicioğlu

2019

Int J of Food Sci Tech

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Summary The objective of this study was to employ pectin‐based antimicrobial coatings for inhibition of Listeria on surfaces of whole webbed‐rind melons that cause frequent outbreaks of listeriosis. For this purpose, emulsion‐based coatings were developed using citrus pectin (CPEC) or pectin extracted from processing wastes of sun‐dried figs (FPEC) and eugenol (EUG). The emulsions of FPEC and CPEC with EUG (droplet size range: 1.99–11.22 µm) were highly stable for minimum 10 days at 10 °C. The FPEC‐EUG films showed higher flexibility and degree of wettability than CPEC‐EUG films. In contrast, CPEC‐EUG films had a higher gas barrier performance against oxygen at 50% relative humidity than FPEC‐EUG films. The zone inhibition tests showed that FPEC‐EUG films are more effective against Listeria innocua than CPEC‐EUG films. However, FPEC and CPEC coatings with 2% EUG caused 2.2 and 2.7 decimal inactivation of Listeria on Galia melons within 1 week, respectively. The pectin coatings with EUG could reduce the risk of listeriosis from webbed‐rind melons.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Development of pectin–eugenol emulsion coatings for inhibition of Listeria on webbed‐rind melons: a comparative study with fig and citrus pectins

Çavdaroğlu

Farris

Yemenicioğlu

2019

Int J of Food Sci Tech

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“…The decrease in T g is due to the plasticization of zein protein fibers by the EOs in ZEO film. ZEO contains both glycerol and EOs leading to larger amount of plasticizer and lowering of T g 46 …”

Section: Resultsmentioning

confidence: 99%

UV‐shielding antimicrobial zein films blended with essential oils for active food packaging

Kaur

Santhiya

2020

J of Applied Polymer Sci

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A comprehensive study on zein film blended with glycerol and essential oils (EOs) is presented in this work. In particular, ultra violet (UV) shielding property and antimicrobial efficacy of developed active zein films (ZF) are tested. The fabricated films show zero transmittance in the UV region as compare to commercial poly‐film which shows 40%–80% of UV transmittance. Results show that films are effective against spoilage microorganisms. The incorporation of EOs in ZF significantly reduces the growth of microbes over fruit samples since day 3. Physical interactions existing between EOs along with glycerol and zein provide considerable barrier properties. The glass transition temperature of the film comes out to be 47.7°C having the tensile strength of 1.21 ± 0.05 MPa. TGA curves show major weight loss in the range of 220–375°C. In conclusion, edible active ZF can be used as healthy packages over food and drug to increase their shelf life.

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“…There are few studies that deal with the effect of carvacrol-containing edible coatings on the preservation of fresh and minimally processed fruit and vegetables. Some works have been carried out about the development of carvacrol/biopolymer coating such as chitosan, starch, and zein [ 17 , 18 , 19 ]. Meanwhile, the development of alginate-based coatings with carvacrol has been few explored.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Andean Blueberries Postharvest Preservation Using Carvacrol/Alginate-Edible Coatings

et al. 2020

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Edible coatings are attractive strategies for blueberries postharvest preservation. In this work, carvacrol/alginate coatings were developed for application on Andean blueberries. Coating formulations were prepared based on blends of sodium alginate (2% w/v), carvacrol (0%, 0.03%, 0.06% or 0.09%), glycerol, and water and applied to the fruits by dip-coating. Then, the fruits were immersed in a calcium batch to induce a crosslink reaction. Changes in the physicochemical and microbiological characteristics of the blueberries were monitored during 21 days of storage at 4 °C. Coated blueberries were better preserved throughout the 21 days of storage because of their lower respiration rate and water loss, in comparison with the uncoated ones. Besides, the coatings enhanced the appearance and the gloss of the fruits. Control fruits showed a significant decrease in the firmness, while, in the coated fruits, this critical postharvest quality was preserved during the entire storage. Coating formulations with 0.09% of carvacrol was the most effective in preventing mesophilic aerobic bacteria and molds/yeasts growth on the fruits during the storage. Edible carvacrol/alginate coatings can be considered as a useful alternative to complement the benefits of refrigerated storage by delaying post-harvest spoilage of Andean blueberries.

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Development of flexible antimicrobial zein coatings with essential oils for the inhibition of critical pathogens on the surface of whole fruits: Test of coatings on inoculated melons

Cited by 62 publications

References 60 publications

Development of pectin–eugenol emulsion coatings for inhibition of Listeria on webbed‐rind melons: a comparative study with fig and citrus pectins

Development of pectin–eugenol emulsion coatings for inhibition of Listeria on webbed‐rind melons: a comparative study with fig and citrus pectins

UV‐shielding antimicrobial zein films blended with essential oils for active food packaging

Improvement of Andean Blueberries Postharvest Preservation Using Carvacrol/Alginate-Edible Coatings

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