Recent advances and perspectives on starch nanocomposites for packaging applications

Abdullah, Zainab Waheed; Dong, Yu

doi:10.1007/s10853-018-2613-9

Cited by 46 publications

(18 citation statements)

References 99 publications

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“…The research on biodegradable green materials is consistent with sustainable development strategies in the field of food packing materials. [ 1–4 ]…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Corn Starch‐Based Composite Films Containing Corncob Cellulose and Cassia Oil

Chen

Yuan

2020

Starch Stärke

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Starch-corncob cellulose-cassia oil (SCC) composite films are fabricated by a solution casting technique, using corn starch as substrate, corncob cellulose fibers as the reinforcing material, and cassia oil added as the bacteriostatic agent. The morphology, transmittance, thermal properties, permeability, and mechanical properties of the SCC composite films are studied. The SCC composite film with 2% w/w corncob cellulose and 0.2% v/w cassia oil show good properties. The surface of the SCC composite film is smooth, and the components are evenly mixed as shown by scanning electron microscopy images. Fourier transform infrared spectroscopic analysis also show that both cassia oil and corncob cellulose molecules successfully enter the starch matrix, and a stable starch-corncob cellulose cassia oil composite film is formed. Thermogravimetric analysis of the SCC composite film shows that the film has good thermal stability and good heat resistance. In the SCC composite film with 2% w/w corncob cellulose, tensile strength decreases the content of cassia oil increases, but elongation at break shows the trend of increasing initially and then decreasing. The SCC composite films have good mechanical properties and can keep fruit fresh, indicating that the composite film can be used as a good food packing material.

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“…The research on biodegradable green materials is consistent with sustainable development strategies in the field of food packing materials. [ 1–4 ]…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Corn Starch‐Based Composite Films Containing Corncob Cellulose and Cassia Oil

Chen

Yuan

2020

Starch Stärke

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“…Furthermore, the observed increase in strength and concurrent decrease of ductility of starch‐CNC nanocomposites lies well within the ranges that have been reported for the relative change of each property. [ 70,75,76 ]…”

Section: Resultsmentioning

confidence: 99%

Thermoplastic Starch Nanocomposites Reinforced with Cellulose Nanocrystal Suspensions Containing Residual Salt from Neutralization

Metzger

Briesen

2021

Macro Materials & Eng

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Sulfuric acid‐catalyzed hydrolysis of cellulose commonly isolates cellulose nanocrystals (CNCs). Neutralizing the reactant solution with sodium hydroxide facilitates efficient downstream processing, but residual salt remains in the product. This study examines the reinforcing effects of CNCs from suspensions that contain residual salt on the mechanical properties of thermoplastic starch nanocomposites. By reinforcing starch films with up to 5 wt% CNCs, stiffness and strength are improved by 118% and 79%, respectively, indicating a good dispersion of CNCs in the starch matrix. Compared to nanocomposites incorporating salt‐free CNCs, the remaining salt has no significant impact on the material's mechanical performance. The results indicate great potential of CNCs containing residual salt as biobased, low‐cost nanofiller in hydrophilic polymer matrices.

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“…Os filmes foram obtidos pelo processo de extrusão em extrusora de dupla rosca (ABDULLAH, DONG, 2018;DONG et al, 2015;GARCÍA et al, 2015;MADHUMITHA et al, 2018;MEDEIROS, DUFRESNE, ORTS, 2010).…”

Section: Produção Dos Filmes De Amidounclassified

Amido termoplástico com potencial indicador de mudança de pH para embalagens de alimentos.

Vedove¹

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Following sustainable development, companies and researchers of the packaging area are developing biodegradable materials from renewable resources. This work proposed the production of biodegradable cassava starch films by extrusion, evaluating different additives: glycerol and water as plasticizers, acids as chemical modifiers and microfibrillated cellulose (CMF) as reinforcer. The films were evaluated by their mechanical properties (thickness, tensile strength, percentage of elongation at break and Young's modulus), and surface (moisture, solubility, contact angle, color difference and opacity). It was obtained films with diversified and promising characteristics. From the obtained results the optimal film was chosen, that is, with the best properties for application as food packaging. After that, films were elaborated with anthocyanin for potential use as smart package. Beyond the characterization already described for films produced in the first step of this work, morphology and crystallinity were also evaluated. pH indicator activity was verified for two kinds of meat (beef and fish), at three different concentrations of anthocyanin (5, 10 and 20) mg of anthocyanin/100 g of film, at two different storage conditions (ambient and under refrigeration). By the color change measurement of the film, it was possible to correlate the pH change of the foods tested. The obtained results were promising, since the films performed as good pH indicators, as the color changes was noticeable to the naked eye, and this change was more pronounced in films with lower anthocyanin content.

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Recent advances and perspectives on starch nanocomposites for packaging applications

Cited by 46 publications

References 99 publications

Preparation and Characterization of Corn Starch‐Based Composite Films Containing Corncob Cellulose and Cassia Oil

Preparation and Characterization of Corn Starch‐Based Composite Films Containing Corncob Cellulose and Cassia Oil

Thermoplastic Starch Nanocomposites Reinforced with Cellulose Nanocrystal Suspensions Containing Residual Salt from Neutralization

Amido termoplástico com potencial indicador de mudança de pH para embalagens de alimentos.

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