Antioxidant properties of polyphenols incorporated in casein/sodium caseinate films

Helal, Ahmed; Tagliazucchi, Davide; Conte, Angela; Desobry, Stéphane

doi:10.1016/j.idairyj.2011.12.002

Cited by 34 publications

(17 citation statements)

References 35 publications

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“…In a recent study, it has been found that GT while incorporated in ethyl cellulose showed superior antioxidant activity . Most of these studies were based on solution blending to avoid thermal degradation of the antioxidants during polymer processing . However, melt blending is more industrially acceptable than solution blending, as it does not require the investment of solvents and a solvent removal step, which raise environmental and health hazard concerns .…”

Section: Resultsmentioning

confidence: 99%

Enhanced antioxidant activity of polyolefin films integrated with grape tannins

Olejar

Ray

Kilmartin

2015

J. Sci. Food Agric.

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Section: Resultsmentioning

confidence: 99%

Enhanced antioxidant activity of polyolefin films integrated with grape tannins

Olejar

Ray

Kilmartin

2015

J. Sci. Food Agric.

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“…In fact, the quantity of GA used was the double of the IC 50 value, thus a 100% DPPH inhibition was expected. The lower antioxidant capacity measured when the active compound is dispersed in SC coating can be justified by the interaction between SC and GA that reduces the available active site of GA [35,36].…”

Section: Resultsmentioning

confidence: 99%

Active Biopolymer Coating Based on Sodium Caseinate: Physical Characterization and Antioxidant Activity

Valentino¹,

Volpe

Giuseppe³

et al. 2020

Coatings

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The objective of this work was to investigate the effect of sodium caseinate concentration on physical-chemical properties of coating solutions and films obtained by casting as a starting point for the development of an active coating for minimally processed fruits or vegetables. Sodium caseinate solutions at different concentrations (4%, 8%, 10%, 12%, 14%) were used as a coating system. The coating viscosity and desorption kinetic were characterized. Minimally processed fennels were coated by dipping and the liquid and dry coating thickness were estimated by assessing the amount of coating on fennel during draining as a function of solution properties (concentration and viscosity). Film obtained by casting were also characterized in terms of equilibrium moisture content, color, and water vapor permeability. The potential of using the sodium caseinate solution to obtain active coating was investigated by adding gallic acid or rosemary oil to sodium caseinate solution at 4%. The antioxidant capacity of the coating was evaluated by DPPH test. Results show that sodium caseinate solutions follow a Newtonian behavior in the range of concentration investigated and the viscosity increased as solids concentration increased, following a power law. The drying rate was in the range 0.0063–0.00107 mgH2O·mgsolids−1·min−1·m−2 as a function of sodium caseinate concentration. The average liquid and dry coating thickness on fennels were in the range 20–70 and 0.7–6.4 μm, respectively. The water vapor permeability slightly decreased as the solid concentration increased. Active coating showed good antioxidant properties.

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“…Determination of radical‐scavenging activity of packaging films is very important because of the harmful effects of free radicals in foods and biological systems (Helal, Tagliazucchi, Conte, & Desobry, ). DPPH radical‐scavenging ability is a standard method for determination of antioxidant ability.…”

Section: Resultsmentioning

confidence: 99%

Development of moisture-absorbing and antioxidant active packaging film based on poly(vinyl alcohol) incorporated with green tea extract and its effect on the quality of dried eel

Chen

Xie

Yang

et al. 2017

J Food Process Preserv

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Active packaging film with functions of moisture-absorbing and antioxidant activity was developed based on poly(vinyl alcohol) (PVA) incorporated with green tea extract (GTE). The effects of GTE concentrations of 0, 0.5, 1, 1.5, and 2% on the physical, structural, and antioxidant properties of PVA films were investigated. The PVA film containing 2% GTE had lower moisture absorbing efficiency relatively and better antioxidant activity through DPPH radical-scavenging ability experiment. A packaging system of GTE-incorporated PVA films was applied to package dried eel and quality of dried eel was evaluated during storage. The result showed that dried eel packed with GTE-incorporated PVA films showed lower weight change, peroxide value and TBARS value during storage than that packed without PVA films or with PVA films but no GTE. The PVA film containing 2% GTE showed the best quality protective effectiveness to prevent the dried eel from absorbing moisture and oxidizing of lipid. Practical applicationsPoly(vinyl alcohol) (PVA) is a synthetic polymer that is widely used in packaging applications because of its excellent film forming, biodegradability, good mechanical, and gas barrier properties.The present study evidenced that the PVA films incorporated with GTE showed good quality protective effectiveness to prevent the dried eel packed with these films from absorbing moisture and oxidizing of lipid. This active packaging film could be used as inner layer or intermediate layer in the composite packaging film system to improve the storage quality of moisture-sensitive and high-fat food. Based on this concept, the moisture-absorbing agents and antioxidant can be incorporated into the packaging structures to develop an active multifunctional food packaging material potentially to remove or reduce moisture inside the food packaging system instead of desiccants and preservative added in the food.

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Antioxidant properties of polyphenols incorporated in casein/sodium caseinate films

Cited by 34 publications

References 35 publications

Enhanced antioxidant activity of polyolefin films integrated with grape tannins

Enhanced antioxidant activity of polyolefin films integrated with grape tannins

Active Biopolymer Coating Based on Sodium Caseinate: Physical Characterization and Antioxidant Activity

Development of moisture-absorbing and antioxidant active packaging film based on poly(vinyl alcohol) incorporated with green tea extract and its effect on the quality of dried eel

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