Rheological and antioxidant properties of chitosan/gelatin-based materials functionalized by pomegranate peel extract

Bertolo, Mirella Romanelli Vicente; Martins, Virgínia da Conceição Amaro; Horn, Marilia M.; Brenelli, Lívia Beatriz; Plepis, Ana Maria de Guzzi

doi:10.1016/j.carbpol.2019.115386

Cited by 88 publications

(58 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Moreover, both η 0 and η ∞ values increase simultaneously with the collagen concentration. The η 0 value is directly related to the number of interactions between the polymer macromolecules and the solvent [ 28 , 29 ]. Thus, the increase in the η 0 values together with an increase in the collagen solution concentration confirm that the development of a temporary network or the number of entanglements of collagen molecules in the solution increased.…”

Section: Resultsmentioning

confidence: 99%

The Influence of UV Light on Rheological Properties of Collagen Extracted from Silver Carp Skin

2020

View full text Add to dashboard Cite

Acid soluble collagen (ASC) was extracted from Silver Carp fish skin. Collagen was dissolved in acetic acid at varying concentrations and its rheological properties were studied. Steady shear flow properties of collagen solutions at concentrations of 5 and 10 mg/mL were characterized using rheometry at 20 °C. Collagen solutions were irradiated with UV light (wavelength 254 nm) for up to 2 h and rheological properties were measured. All the collagen solutions showed a shear-thinning flow behavior. A constant viscosity region was observed after 1 h of UV irradiation, which showed that collagen molecules were fully denatured. A short treatment with collagen solution by UV (ultraviolet) light led to an increase in viscosity; however, the denaturation temperature of UV-irradiated collagen decreased. Depending on the time of UV treatment, collagen extracted from Silver Carp fish skin may undergo physical crosslinking or photodegradation. Physically crosslinked collagen may find applications in functional food, cosmetic, biomedical, and pharmaceutical industries.

show abstract

Section: Resultsmentioning

confidence: 99%

The Influence of UV Light on Rheological Properties of Collagen Extracted from Silver Carp Skin

2020

View full text Add to dashboard Cite

show abstract

“…Many researchers have studied the effect of pomegranate addition in the properties of several foods products, such as dairy products (Table 6), films and coatings for food packaging (Table 7), meat and fish products (Table 8), and cereal and nuts products (Table 9). improvement of functional characteristics of coatings; improvement of sensory characteristics and ↑shelf life of food [105][106][107][108] peel powder starch-based films better mechanical properties; antimicrobial activity [109] peel extract chitosan/locust gum coating (oranges) inhibition of Penicillium digitatum; ↑shelf-life of oranges [110] peel extract surimi-based films superior mechanical properties; improved thermal stability [111] juice bitter vetch seed protein films antioxidant activity; improvement of physicochemical properties [112] Table 8. Recent studies on the effect of the addition of pomegranate derivatives to meat and fish products.…”

Section: Applications In Food Productsmentioning

confidence: 99%

“…Chitosan is a cationic polysaccharide that is obtained by the deacetylation of chitin, and, due to its biodegradability, biocompatibility, antimicrobial activity and non-toxicity, is considered a very promising and eco-friendly material for different purposes, including food coatings systems [105]. In addition, pomegranate peel extracts have been proven capable of improving the functional characteristics of chitosan-based materials by enhancing the desired properties for their potential application as food coatings [105]. Chitosan-based coatings with incorporated pomegranate peel extracts have been used in several products, such as rainbow trout [106], pacific white shrimp [107] and strawberries [108].…”

Section: Films and Coatingsmentioning

confidence: 99%

Food Applications and Potential Health Benefits of Pomegranate and its Derivatives

Kandylis

Kokkinomagoulos

2020

Foods

158

View full text Add to dashboard Cite

Pomegranate (Punica granatum L.) is an ancient fruit that is particularly cultivated in west Asia, though it is also cultivated in the Mediterranean region and other parts of the world. Since ancient years, its consumption has been associated with numerous health benefits. In recent years, several in vitro and in vivo studies have revealed its beneficial physiological activities, especially its antioxidative, antimicrobial and anti-inflammatory properties. Furthermore, human-based studies have shown promising results and have indicated pomegranate potential as a protective agent of several diseases. Following that trend and the food industry’s demand for antioxidants and antimicrobials from natural sources, the application of pomegranate and its extracts (mainly as antioxidants and antimicrobials), has been studied extensively in different types of food products with satisfactory results. This review aims to present all the recent studies and trends in the applications of pomegranate in the food industry and how these trends have affected product’s physicochemical characteristics and shelf-life. In addition, recent in vitro and in vivo studies are presented in order to reveal pomegranate’s potential in the treatment of several diseases.

show abstract

“…Several studies have been developed for the production of "active packaging", that is, coating systems to which compounds such as organic acids, enzymes, fungicides and bactericides, essential oils, natural extracts, and ions can be incorporated in order to extend the shelf-life of coated foods without changes in their chemical and sensory quality. 2,6,[11][12][13] Within this context, it is proposed to use grape (Vitis vinifera L.) seed extract as a bioactive compound to be incorporated in the chitosan and gelatin coatings developed in this study. Grapes are considered one of the vegetable sources with the highest phenolic content 14 ; proanthocyanidins, the main components of grapes, are a class of flavonoids with a powerful antioxidant capacity due to their high phenolic hydroxyl content.…”

Section: Introductionmentioning

confidence: 99%

Rheological study of the incorporation of grape seed extract in chitosan and gelatin coatings

Bertolo

Martins

Plepis

et al. 2020

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

This study aims to evaluate the incorporation, addition order and concentration of grape seed extract (Vitis vinifera L.) in chitosan and gelatin solutions, candidates as food coatings due to their excellent antioxidant and barrier properties. This study originally assesses how such variables can affect the rheological parameters of this particular combination of materials. Initially, 1% (w/w) solutions of chitosan (C) and gelatin (G) are mixed at a 1:1 ratio (CG). For grape seed extract addition, ethanolic solutions (50%, v/v) are prepared in different concentrations, with two incorporation orders: 1) addition to CG and 2) addition to the chitosan gel (C), followed by G mixing. The addition order reveals a direct influence on the rheological properties, and low extract concentrations leads to solutions with adequate viscosity for coating applications. The findings of this study confirm that it is essential to standardize the addition procedures during the preparation of the materials.

show abstract

Rheological and antioxidant properties of chitosan/gelatin-based materials functionalized by pomegranate peel extract

Cited by 88 publications

References 41 publications

The Influence of UV Light on Rheological Properties of Collagen Extracted from Silver Carp Skin

The Influence of UV Light on Rheological Properties of Collagen Extracted from Silver Carp Skin

Food Applications and Potential Health Benefits of Pomegranate and its Derivatives

Rheological study of the incorporation of grape seed extract in chitosan and gelatin coatings

Contact Info

Product

Resources

About