How Glycerol and Water Contents Affect the Structural and Functional Properties of Starch-Based Edible Films

Basiak, Ewelina; Lenart, A.; Debeaufort, Frédéric

doi:10.3390/polym10040412

Cited by 267 publications

(168 citation statements)

References 59 publications

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“…The peaks centered at 1132 cm −1 and 1070 cm −1 may be ascribed to the contribution of the C-C and C-O bonds in secondary alcohol groups of -CH-OH. For glycerol, five characteristic bands at the wavenumbers in the 1150-850 cm −1 range arise from the vibrations of C-C and C-O linkages [77]. The FTIR spectrum of PEO 2000 exhibited CH 2 scissoring at 1465 cm −1 , CH 2 wagging at 1357 cm −1 and 1340 cm −1 , CH 2 bending at 1280 cm −1 and 1240 cm −1 , C-O-C stretching at 1093 cm −1 and 1145 cm −1 , and CH 2 rocking at 962 cm −1 and 847 cm −1 [78].…”

Section: Chemical Characterization Of Pectin-based Electrospun Filmmentioning

confidence: 99%

Preparation and Characterization of Electrospun Pectin-Based Films and Their Application in Sustainable Aroma Barrier Multilayer Packaging

et al. 2019

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Pectin was first dissolved in distilled water and blended with low contents of polyethylene oxide 2000 (PEO2000) as the carrier polymer to produce electrospun fibers. The electrospinning of the water solution of pectin at 9.5 wt% containing 0.5 wt% PEO2000 was selected as it successfully resulted in continuous and non-defected ultrathin fibers with the highest pectin content. However, annealing of the resultant pectin-based fibers, tested at different conditions, developed films with low mechanical integrity, high porosity, and also dark color due to their poor thermal stability. Then, to improve the film-forming process of the electrospun mats, two plasticizers, namely glycerol and polyethylene glycol 900 (PEG900), were added to the selected pectin solution in the 2–3 wt% range. The optimal annealing conditions were found at 150 °C with a pressure of 12 kN load for 1 min when applied to the electrospun pectin mats containing 5 wt% PEO2000 and 30 wt% glycerol and washed previously with dichloromethane. This process led to completely homogenous films with low porosity and high transparency due to a phenomenon of fibers coalescence. Finally, the selected electrospun pectin-based film was applied as an interlayer between two external layers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by the electrospinning coating technology and the whole structure was annealed to produce a fully bio-based and biodegradable multilayer film with enhanced barrier performance to water vapor and limonene.

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Section: Chemical Characterization Of Pectin-based Electrospun Filmmentioning

confidence: 99%

Preparation and Characterization of Electrospun Pectin-Based Films and Their Application in Sustainable Aroma Barrier Multilayer Packaging

et al. 2019

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“…of glycerol with 17% wt. of water [ 27 ]. Furthermore, an attempt was made to improve the mechanical performance of the produced films by varying the plasticization temperature from T2 to T3 [ 4 , 28 ].…”

Section: Resultsmentioning

confidence: 99%

Biocomposites Based on Plasticized Wheat Flours: Effect of Bran Content on Thermomechanical Behavior

et al. 2020

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In the present work, the effect of different bran content on the overall thermomechanical behavior of plasticized wheat flours (thermoplastic wheat flour; TPWF) was investigated. Refined flour (F0) with negligible bran fiber content, F1 flour (whole grain flour, 20% wt. bran), F3 (50% wt. bran) and F2 (F1:F3, 50:50) film samples were realized by extrusion process. The effect of TPWF blending with two different biopolymers (polycaprolactone and poly butyrate adipate terephthalate), combined with the presence of citric acid as compatibilizer was also considered. Results from FESEM analysis and tensile characterization demonstrated that PCL was able to reach improved compatibility with the plasticized flour fraction at intermediate bran content (F2 based formulation) when 25% wt. of biopolymeric phase was added. Additionally, it was proved that improvements can be achieved in both thermal and mechanical performance when higher shear rate (120 rpm) and low temperature profiles (Tset2 = 130–135–140 °C) are selected. Disintegrability of the TPWF basic formulations in compositing conditions within 21 days was also confirmed; at the same time, an absence of any phytotoxic event of compost itself was registered. The obtained results confirmed the suitability of these materials, realized by adding different bran contents, to mechanically compete with bioplastics obtained by using purified starches.

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“…Glycerol is a lackluster, scentless, thick fluid that contains three hydroxyl bunches propane-1,2,3-triol, and the consolidated corn starch with glycerol, which explain its hygroscopic character and dissolvability in water. The conventional applications of glycerol incorporate its consolidation into the food industry, the creation of pharmaceuticals, and individual consideration items, while it is the enemy of coolers, herbal concentrates, and numerous different procedures as a middle of the road compound [ 62 , 63 ].…”

Section: Preparation Of Corn Starch Nanomaterialsmentioning

confidence: 99%

A Comprehensive Review on Corn Starch-Based Nanomaterials: Properties, Simulations, and Applications

et al. 2020

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Corn (Zea mays L.) is one of the major food crops, and it is considered to be a very distinctive plant, since it is able to produce a large amount of the natural polymer of starch through its capacity to utilize large amounts of sunlight. Corn starch is used in a wide range of products and applications. In recent years, the use of nanotechnology for applications in the food industry has become more apparent; it has been used for protecting against biological and chemical deterioration, increasing bioavailability, and enhancing physical properties, among other functions. However, the high cost of nanotechnology can make it difficult for its application on a commercial scale. As a biodegradable natural polymer, corn starch is a great alternative for the production of nanomaterials. Therefore, the search for alternative materials to be used in nanotechnology has been studied. This review has discussed in detail the properties, simulations, and wide range of applications of corn starch-based nanomaterials.

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How Glycerol and Water Contents Affect the Structural and Functional Properties of Starch-Based Edible Films

Cited by 267 publications

References 59 publications

Preparation and Characterization of Electrospun Pectin-Based Films and Their Application in Sustainable Aroma Barrier Multilayer Packaging

Preparation and Characterization of Electrospun Pectin-Based Films and Their Application in Sustainable Aroma Barrier Multilayer Packaging

Biocomposites Based on Plasticized Wheat Flours: Effect of Bran Content on Thermomechanical Behavior

A Comprehensive Review on Corn Starch-Based Nanomaterials: Properties, Simulations, and Applications

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