Antioxidative and antimicrobial edible chitosan films blended with stem, leaf and seed extracts of <i>Pistacia terebinthus</i> for active food packaging

Kaya, Murat; Khadem, Sanaz; Çakmak, Yavuz Selim; Mujtaba, Muhammad; Torun, Ilker; Akyüz, Lalehan; Salaberria, Asier M.; Labidi, Jalel; Abdulqadir, Ako; Deligöz, E.

doi:10.1039/c7ra12070b

Cited by 262 publications

(123 citation statements)

References 48 publications

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“…However, homogeneous and crack‐free film surfaces were obtained with an extract concentration of below 3%, demonstrating a good compatibility between the polymer and PBLLE at these composition ratios. The incorporation at higher extract content (3%), however, led to the formation of more defects and cavities presumably resulted from the aggregation of extract components and co‐evaporation of these substances and solvents during the drying process …”

Section: Resultsmentioning

confidence: 99%

“…However, it caused an increase in solubility, swelling and a considerable decrease in thermal stability of the film . In a more recent work, the Pistacia terebinthus leaf extract was demonstrated to be able to provide the film with inhibitory effect against P.microbilis, P.vulgaric, P.earuginosa, E.coli, P.terebinthus, but a significant reduction in the tensile strength, Young's modulus and thermal stability of the film could not be avoided . Similarly, an investigation from Kaya et al .…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Piper Betle Linn. Leaf Extract Incorporated Chitosan Films as Potential Active Food Packaging Materials

et al. 2019

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The present paper reports on the preparation and characterization of potential edible packaging films based on the combination of chitosan and Piper betle Linn. leaf extract (PBLLE). The incorporation of PBLLE was found to improve important characteristics of the chitosan film, making it ideally suitable for active packaging applications. In particular, the blend films exhibited very strong inhibitory activities against both gram‐negative and gram‐positive bacteria such as Bacillus subtilis and Salmonella Typhimurium. Moreover, IC50 values of the blend films were recorded at low levels (10.63‐ 22.81 μg/mL) in the PBLLE range of 1–3% v/v. Both antimicrobial and antioxidant activities of the blend films increased with increasing incorporated PBLLE content (from 1 to 3% v/v) taking into account the activities of polyphenolic compounds contained in the extract. Compared to the pure chitosan film, a significantly lower swelling degree, higher resistance to water vapor permeation and desired flexibility were recorded for the films with sufficient extract content. Interestingly, no considerable difference in the thermal stability of the pure chitosan and the blend films was detected in thermal analysis. In addition, effects of PBLLE on other mechanical and optical properties of the blend films were also examined in detail.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Piper Betle Linn. Leaf Extract Incorporated Chitosan Films as Potential Active Food Packaging Materials

et al. 2019

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“…The crosshead speed was set to 1 mm·s −1 . Tensile strength (TS) was then evaluated by the NEXYGENPlus software (version 4.0.1.184) from the maximum stretching strength (N), thickness, and width of the specimen (mm), according to Equation (2).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Food and pharmaceutical packaging plays an important role in keeping the quality and freshness of the products and prolonging their shelf life. The selection of suitable materials with optimum environmental and utilization properties belongs among the key factors in developing an effective coating fulfilling the industrial and consumer's requirements [1][2][3]. Polysaccharides represent an important category of polymers with good biodegradability and biocompatibility, which are essential properties required from biomaterials.…”

Section: Introductionmentioning

confidence: 99%

Chitosan/Thyme Oil Systems as Affected by Stabilizing Agent: Physical and Antimicrobial Properties

et al. 2019

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Antimicrobial biopolymer films and coatings are of great interest for many applications. Different chitosan systems were prepared and characterized to evaluate the effect of their composition on the physical and antimicrobial properties. Three types of emulsifiers (Tween 20, 80, and 85) were used as stabilizing agents, combined with thyme essential oil (from two producers) applied as an active substance. A predominant role of the applied stabilizer and its hydrophilic–lipophilic balance value was proven. The incorporation of thyme essential oil and surfactant into the chitosan matrix led to a significant decrease of particle size in film-forming solutions, as well as a thickness increase and the enhancement of the barrier properties in chitosan films. Antimicrobial effects were provided even at the lowest tested concentration of thyme essential oil. Hence, the prepared chitosan films represent promising candidates in antimicrobial packaging applications.

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“…The low antioxidant ability of chitosan [182] is usually improved by mixing chitosan with high antioxidant natural extracts (for example, tomato plant extract [183,184], leaf and seed extracts of Pistacia terebinthus [185], Ficus hirta fruits extract [186], flax seed mucilage extract [187], and Laurus nobilis extract [188]). Alginate and chitosan coatings containing olive leave extract were also found to improve the TP content and antioxidant activity of Sweet Cherries (Prunus avium L.).…”

Section: Chitosan/starch/alginate Containing Plant Extracts As Ediblementioning

confidence: 99%

Vegetable Additives in Food Packaging Polymeric Materials

Munteanu

Vasile

2019

Polymers

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Plants are the most abundant bioresources, providing valuable materials that can be used as additives in polymeric materials, such as lignocellulosic fibers, nano-cellulose, or lignin, as well as plant extracts containing bioactive phenolic and flavonoid compounds used in the healthcare, pharmaceutical, cosmetic, and nutraceutical industries. The incorporation of additives into polymeric materials improves their properties to make them suitable for multiple applications. Efforts are made to incorporate into the raw polymers various natural biobased and biodegradable additives with a low environmental fingerprint, such as by-products, biomass, plant extracts, etc. In this review we will illustrate in the first part recent examples of lignocellulosic materials, lignin, and nano-cellulose as reinforcements or fillers in various polymer matrices and in the second part various applications of plant extracts as active ingredients in food packaging materials based on polysaccharide matrices (chitosan/starch/alginate).In this review various recent applications of plant-based additives (lignocellulosic fibers/nano-cellulose as well as bioactive plant extracts) as reinforcements and active ingredients in food packaging materials are illustrated. Natural polysaccharide biopolymers (such as chitosan/starch/alginate) are nontoxic, biodegradable, biocompatible, and largely used in food packaging: Chitosan is known for its broad antimicrobial activity and its excellent film-forming properties; alginates have good film-forming properties, retain moisture, reduce microbial counts, and retard oxidative off-flavors; and starch is also particularly important for its cheap price and its frequency in nature. For these reasons, this review will present applications of plant extracts as active ingredients in natural polysaccharide biopolymers: chitosan/starch/alginate. Classification of Natural Biodegradable Polymers and AdditivesNatural biodegradable polymers and additives are polymers formed naturally by the living organisms by enzyme-catalyzed reactions and reactions of chain growth from monomers which are formed inside the cells by complex metabolic processes [5].Natural additives can be high molecular weight (natural polymers), such as proteins (collagen, silk, and keratin), carbohydrates (starch and glycogen), lignin, cellulose, high molecular weight phenolics (tannins and derivatives), and low molecular weight active substances, such as cold-pressed oils, essential oils (organic volatile compounds, generally of low molecular weight,

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Antioxidative and antimicrobial edible chitosan films blended with stem, leaf and seed extracts of Pistacia terebinthus for active food packaging

Cited by 262 publications

References 48 publications

Preparation and Characterization of Piper Betle Linn. Leaf Extract Incorporated Chitosan Films as Potential Active Food Packaging Materials

Preparation and Characterization of Piper Betle Linn. Leaf Extract Incorporated Chitosan Films as Potential Active Food Packaging Materials

Chitosan/Thyme Oil Systems as Affected by Stabilizing Agent: Physical and Antimicrobial Properties

Vegetable Additives in Food Packaging Polymeric Materials

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