scholarly journals The Effect of Whey Protein-Based Edible Coatings Incorporated with Lemon and Lemongrass Essential Oils on the Quality Attributes of Fresh-Cut Pears during Storage

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 745
Author(s):  
Sabina Galus ◽  
Magdalena Mikus ◽  
Agnieszka Ciurzyńska ◽  
Ewa Domian ◽  
Jolanta Kowalska ◽  
...  
Keyword(s):  
Essential Oils ◽  
Whey Protein ◽  
Barrier Properties ◽  
Whey Protein Isolate ◽  
Edible Films ◽  
Protein Isolate ◽  
Edible Coatings ◽  
Colour Changes ◽  
Fresh Cut ◽  
Good Transparency

This study aimed to determine the effect of edible coatings based on whey protein isolate and essential oils (lemon and lemongrass) on the colour, hardness, polyphenols and flavonoids content, structure, and sensory attributes of fresh-cut pears during storage at 4 °C. The optical and barrier properties of the edible films were also determined. Analysed films showed good transparency (Lightness 86.6–95.0) and excellent oxygen and carbon dioxide permeability, which were reduced due to the presence of lemon and lemongrass essential oils. Pears were coated by immersion in a solution containing 8% of whey protein isolate and the addition of lemon oil at 1.0% or lemongrass essential oil at 0.5%. Coating caused a reduction in colour changes, loss in hardness, polyphenols and flavonoids. The study showed that the highest efficiency was demonstrated by the whey protein isolate coatings without the addition of essential oils by preserving the colour and firmness of fresh-cut pears. For these samples, the highest sensory acceptability was also achieved.

Whey protein isolate edible films incorporated with essential oils: Antimicrobial activity and barrier properties

2020 ◽  
Vol 179 ◽  
pp. 109285 ◽  
Author(s):  
Hülya Çakmak ◽  
Yeşim Özselek ◽  
Osman Yağız Turan ◽  
Ebru Fıratlıgil ◽  
Funda Karbancioğlu-Güler
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Whey Protein ◽  
Barrier Properties ◽  
Whey Protein Isolate ◽  
Edible Films ◽  
Protein Isolate

scholarly journals Development and Assessment of Duplex and Triplex Laminated Edible Films Using Whey Protein Isolate, Gelatin and Sodium Alginate

2020 ◽  
Vol 21 (7) ◽  
pp. 2486 ◽  
Author(s):  
Andrey A. Tyuftin ◽  
Lizhe Wang ◽  
Mark A.E. Auty ◽  
Joe P. Kerry
Keyword(s):  
Sodium Alginate ◽  
Whey Protein ◽  
Water Vapour ◽  
Corn Oil ◽  
Barrier Properties ◽  
Break Point ◽  
Whey Protein Isolate ◽  
Edible Films ◽  
Protein Isolate ◽  
Vapour Permeability

The objective of this study was to assess the ability of producing laminated edible films manufactured using the following proteins; gelatin (G), whey protein isolate (WPI) and polysaccharide sodium alginate (SA), and to evaluate their physical properties. Additionally, films’ preparation employing these ingredients was optimized through the addition of corn oil (O). Overall, 8-types of laminated films (G-SA, G-WPI, SA-WPI, SA-G-WPI, GO-SAO, GO-WPIO, SAO-WPIO and SAO-GO-WPIO) were developed in this study. The properties of the prepared films were characterized through the measurement of tensile strength (TS), elongation at break point (EB), puncture resistance (PR), tear strength (TT), water vapour permeability (WVP) and oxygen permeability (OP). The microstructure of cross-sections of laminated films was investigated by scanning electron microscopy (SEM). Mechanical properties of films were dramatically enhanced through the addition of film layers. GO-SAO laminate showed the best barrier properties to water vapour (22.6 ± 4.04 g mm/kPa d m2) and oxygen (18.2 ± 8.70 cm3 mm/kPa d m2). SAO-GO-WPIO laminate film was the strongest of all laminated films tested, having the highest TS of 55.77 MPa, PR of 41.36 N and TT of 27.32 N. SA-G-WPI film possessed the highest elasticity with an EB value of 17.4%.

scholarly journals Development and Assessment of Duplex and Triplex Laminated Edible Films Using Whey Protein Isolate, Gelatin and Sodium Alginate

2020 ◽  
Author(s):  
Lizhe Wang ◽  
Andrey A. Tyuftin ◽  
Mark A.E. Auty ◽  
Joseph P. Kerry
Keyword(s):  
Sodium Alginate ◽  
Whey Protein ◽  
Water Vapour ◽  
Corn Oil ◽  
Barrier Properties ◽  
Break Point ◽  
Whey Protein Isolate ◽  
Edible Films ◽  
Protein Isolate ◽  
Vapour Permeability

The objective of this study was to assess the ability of producing laminated edible films manufactured using the following proteins; gelatin (G), whey protein isolate (WPI), and polysaccharide; sodium alginate (SA), and to evaluate their physical properties. Additionally, films’ preparation employing these ingredients was optimized through the addition of corn oil (O), Overall, 8-types of laminated films (G-SA, G-WPI, SA-WPI, SA-G-WPI, GO-SAO, GO-WPIO, SAO-WPIO, SAO-GO-WPIO were developed in this study. The properties of the prepared films were characterized through the measurement of; tensile strength (TS), elongation at break point (EB), puncture resistance (PR), tear strength (TT), water vapour permeability (WVP) and oxygen permeability (OP). The microstructure of cross-sections of laminated films was investigated by scanning electron microscopy (SEM). Mechanical properties of films were dramatically enhanced through the addition of film layers. GO-SAO laminate showed the best barrier properties to water vapour (22.6 ± 4.04 g mm/kPa d m2) and oxygen (18.2 ± 8.70 cm3 mm/kPa d m2). SAO-GO-WPIO laminate film was the strongest of all laminated films tested, having the highest TS of 55.77 MPa, PR of 41.36 N and TT of 27.32 N. SA-G-WPI film possessed the highest elasticity with an EB value of 17.4%.

Novel Whey Protein Isolate/Polyvinyl Biocomposite for Packaging: Improvement of Mechanical and Water Barrier Properties by Incorporation of Nano-silica

2021 ◽  
Author(s):  
Bruna Rage Baldone Lara ◽  
Paulo Sérgio de Andrade ◽  
Mario Guimarães Junior ◽  
Marali Vilela Dias ◽  
Lizzy Ayra Pereira Alcântara
Keyword(s):  
Whey Protein ◽  
Barrier Properties ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Nano Silica ◽  
Water Barrier

scholarly journals Effect of whey protein isolate films incorporated with montmorillonite and citric acid on the preservation of fresh-cut apples

2018 ◽  
Vol 107 ◽  
pp. 306-313 ◽  
Author(s):  
Viviane Machado Azevedo ◽  
Marali Vilela Dias ◽  
Heloisa Helena de Siqueira Elias ◽  
Katia Lumi Fukushima ◽  
Eric Keven Silva ◽  
...  
Keyword(s):  
Citric Acid ◽  
Whey Protein ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Fresh Cut
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