Polymer Nanocomposites for Food Packaging Applications

e aim of this study was to develop a chitosan/cellulose nano bril (CNF) nanocomposite and evaluate its e ect on strawberry's postharvest quality after coating. From the results of color, thickness, and scanning electron microscopy (SEM) and permeability to water vapor analyses, the best lm formulation for coating strawberries was determined. ree coating formulations were prepared: 1% chitosan, 1% chitosan + 3% CNF, and 1% chitosan + 5% CNF. e strawberries were immersed in the lmogenic solutions and kept under cold storage (1 ± 1°C). e color of the lm was not a ected by increased concentration of cellulose nano brils; however, the thickness and water vapor permeability were a ected by the CNF addition. e coating with the highest CNF concentration performed better in reducing fruit mass and rmness loss. e color was positively in uenced by the addition of the coating, regardless of formulation, as well as soluble solid content, PG enzymatic activity, and the fruit appearance. e pH and titratable acidity showed no signi cant di erence among treatments. It was observed that the vitamin C, phenolic compounds, and anthocyanin content, as well as the PAL activity and the antioxidant activity (except for % protection), were a ected by chitosan coating, however not by the addition of CNFs.

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“…It is noteworthy that cellulose nanocomposites are one of the most promising structures to the packaging field [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Chitosan/Cellulose Nanofibril Nanocomposite and Its Effect on Quality of Coated Strawberries

Resende

Gonçalves²,

Reis

et al. 2018

Journal of Food Quality

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“…Nanocomposite active food packaging has the potential to work against microbes by liberation of some useful compounds which are antimicrobial or antioxidant substances which improve food stability (silver-toxic against almost all microorganisms), oxygen scavenging, and enzyme immobilization systems [43]. Bionanocomposites are hybrid materials with nanostructure and are considered to be environmentally friendly and efficient in food packaging, improving the duration of shelf life of food products besides carrying enhanced mechanical, thermal, and gas barrier properties [44].…”

Section: Nanofood Packagingmentioning

confidence: 99%

Nanoagriculture: A Holistic Approach for Sustainable Development of Agriculture

Shafi¹,

Qadir²,

Sabir³

et al. 2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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The major and the growing concern with society is lack of environmental sustainability. Uncontrolled release of pollutants into the environment as a result of urbanization and industrialization is an environmental problem of global concern. Nanotechnology for environmental sustainability addresses the applications of nanomaterials in the field of environmental conservation and sustainability and analyzes the potential risks associated with their use. Nanotechnology has

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“…The fourth type is a combination of active and passive barrier (Fig. 5d) (Shankar and Rhim 2016). Polymer Matrix and Nanofillers Polymer nanocomposites are composed of multiphase hybrid material containing a polymer matrix and at least one phase as nanoscale filler having dimension ˂100 nm.…”

Section: Applications Of Polymer-based Nanocomposites Applications Ofmentioning

confidence: 99%

Polymer Nanocomposite Matrices: Classification, Synthesis Methods, and Applications

Sharma

Priya

Kaith

2019

Handbook of Polymer and Ceramic Nanotechnology

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Polymeric matrices are highly preferable these days because of their eco-friendly usage, availability, and low cost. Inserting nanomaterials to the polymer matrices is further meant to be a boon as their usage is extended to a large number of applications. Nanofillers of any dimension whether 0D, 1D, 2D, or 3D have unique characteristics and applications in fields like electronics, optical sensors, biomedical applications, and many more. Their dispersion in polymer matrices prevents agglomeration, and they can be used extensively without any hindrance to their application. Polymer matrices specifically of natural origin are highly biodegradable and eco-friendly. Polymer nanocomposites can be classified on the basis of dimension of nanofiller (0D, 1D, 2D, etc.), type of nanofiller (metal hydroxide, metal sulfide, etc.), type of polymer matrix (thermosetting, thermoplastic, etc.), or on the basis of method of synthesis (in situ, ex situ). They can be synthesized through various methods such as intercalation, sol-gel, in situ polymerization, and direct mixing of nanofillers with polymer. The structure of polymer nanocomposites includes nanofillers and polymer matrix separated by an interphase showing interaction between the two. Polymer nanocomposites can be applied to various fields such as biosensors, in food packaging, and as adsorbents, in electronic devices and biomedical applications. Hence, they are widely used because of their numerous applications.

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Polymer Nanocomposites for Food Packaging Applications

Cited by 45 publications

References 85 publications

Chitosan/Cellulose Nanofibril Nanocomposite and Its Effect on Quality of Coated Strawberries

Chitosan/Cellulose Nanofibril Nanocomposite and Its Effect on Quality of Coated Strawberries

Nanoagriculture: A Holistic Approach for Sustainable Development of Agriculture

Polymer Nanocomposite Matrices: Classification, Synthesis Methods, and Applications

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