Thermal and microstructural characterization of biodegradable films prepared by extrusion–calendering process

Galicia-García, Tomás; Martı́nez-Bustos, Fernando; Jiménez-Arévalo, O.; Martínez, Alejandro Rosillo; Ibarra‐Gómez, Rigoberto; Gaytán–Martínez, Marcela; Mendoza-Duarte, J.M.

doi:10.1016/j.carbpol.2010.07.050

Cited by 28 publications

(24 citation statements)

References 61 publications

(73 reference statements)

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“…The thermograms of all starch films obtained by DSC did not show any peaks at the beginning of the curve, indicating complete starch gelatinization during edible film development. The results were in agreement with observations by Mali, Grossmann, Garcia, Martino, and Zaritzky () and Galicia‐García et al ().…”

Section: Resultssupporting

confidence: 93%

“…The thickness of edible films and coatings is an important parameter since it directly affects the other physicochemical properties of the film such as WVP and OP (Bertuzzi, Castro Vidaurre, Armada, & Gottifredi, ) and thus in turn the biochemical properties of the coated food that can impact on shelf‐life (Skurtys et al, ). In this study, no‐significant differences were found in the thickness of the different starch films that ranged between 0.19 ± 0.01 and 0.21 ± 0.02 mm (Table ) (Galicia‐García et al, ; Romero‐Bastida et al, ).…”

Section: Resultsmentioning

confidence: 66%

“…The lower TS, Y , and higher E observed in rice starch films could be due to the lower amount of amylose content: 15% compared to the two other starches that contained about 25% and lower granule size of rice starch, which cause better integrity. The amylose contents, amylose to amylopectin ratio, and molecular weight of the starch sources influence the mechanical properties of films (Butler, Vergano, Testin, Bunn, & Wiles, ; Galicia‐García et al, ; Muscat et al, ).…”

Section: Resultsmentioning

confidence: 99%

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Comparison of starch films and effect of different rice starch‐based coating formulations on physical properties of walnut during storage time at accelerated temperature

Aghazadeh

Karim

Sultan

et al. 2017

J Food Process Engineering

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Effects of different rice starch‐based coating formulations on physical properties of walnut were studied during 20 days storage at accelerated temperature. Results from different starch films indicated there were nonsignificant differences in water and oxygen barrier properties of the starch films. However, significant (p ≤ .05) differences were present in the elongation at break characteristics between the corn and rice films. Tensile strength varied significantly between edible films made from rice starch with that of wheat and corn. Melting temperature (Tm) of wheat and corn starch films was higher than rice starch films (152.77 °C). Thus, rice starch in combination with different additives such as chitosan, emulsifier, and red palm oil, which improve the properties of rice starches have been chosen to coat dried walnut kernels. The coated walnuts were significantly (p ≤ .05) lighter than the control group. Results on different functional ingredients also showed significant variations, for example; yellowness of walnut in the presence of chitosan was lower among the coating formulas (p ≥ .05). However, the variations in textural characteristics of walnuts with different coating formulas remained nonsignificant (p > .05). Practical applications Rice based edible coating added with chitosan can be used to extend the shelf life of walnut kernels. These coated walnuts can be safely distributed or sold in tropical countries where the surrounding relative humidity and temperature is high. Edible coating serves as a barrier which reduces the effect of oxygen, moisture and temperature (most important factors of rancidity) on nuts. The application of starch‐based coating for walnuts will also help to reduce storage space as removing the husk (green layer) and shell of walnuts (wooden layer) results in less space requirements. Furthermore, the coated walnuts can be stored at room temperature and requirement for refrigerated system can be eliminated, hence the cost of storage is minimized.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of starch films and effect of different rice starch‐based coating formulations on physical properties of walnut during storage time at accelerated temperature

Aghazadeh

Karim

Sultan

et al. 2017

J Food Process Engineering

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“…Some papers described the production of PLA sheets modified with a styreneacrylic multifunctional oligomeric agent [21], and sheets of native starch (corn, potato and waxy corn) and phosphorylated corn starch with bagasse fiber [22] produced by calendering extrusion process.…”

Section: Introductionmentioning

confidence: 99%

Adipate and Citrate Esters as Plasticizers for Poly(Lactic Acid)/Thermoplastic Starch Sheets

et al. 2014

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Poly(lactic acid) (PLA) and thermoplastic starch (TPS) sheets plasticized with different adipate and citrate esters were produced by a calendering-extrusion process. The incorporation of plasticizers significantly reduced the glass transition temperature and increased the PLA chain mobility thus improving the mechanical properties. Among the plasticizers employed, diethyl adipate significantly increased the elongation of the sheets and slightly increased the water vapor permeability. Micrographs revealed the incompatibility between starch and PLA, and there was no plasticizer phase separation, suggesting that the plasticizer concentration was adequate. The incorporation of adipate or citrate esters improves the mechanical properties and processability of PLA/TPS sheets produced by calendering extrusion at a pilot scale.

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“…Na elaboração de filmes biodegradáveis, o amido é a matéria-prima mais utilizada, seja na sua forma nativa, modificada quimicamente ou como misturas entre amidos de diferentes fontes (GUILBERT; GOSSIS, 1996;MULDER-JOHNSTON, 1997;PARRA et al, 2004;SCAMPARINI, 2004;VEIGA-SANTOS et al, 2005a;VEIGA-SANTOS et al, 2005b;DA RÓZ et al, 2006;FAMÁ et al, 2006;ZARITZKY., 2006;MALI et al, 2006;RODRÍGUEZ et al, 2006;ALVES et al, 2007;BERTUZZI et al, 2007;TALJA et al, 2007;TALJA et al, 2008;THUNWALL et al, 2008;XIONG et al, 2008;YAMASHITA, 2009;VÁSCONEZ et al, 2009;ZULLO;IANNACE, 2009;ARAUJO-FARRO et al, 2010;DAI et al, 2010;DIAS et al, 2010;ENTEZAMI, 2010;KECHICHIAN et al, 2010;PUSHPADASS;BHANDARI;HANNA, 2010;YOKSAN;CHIRACHANCHAI, 2010;ABDORREZA;CHENG;KARIM, 2011;GALICIA-GARCÍA et al, 2011;GARCÍA et al, 2011;ENTEZAMI, 2011;LÓPEZ et al, 2011;ALAVI, 2011;TORRES et al, 2011;…”

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Desenvolvimento de embalagem biodegradável ativa a base de fécula de mandioca e agentes antimicrobianos naturais.

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Thermal and microstructural characterization of biodegradable films prepared by extrusion–calendering process

Cited by 28 publications

References 61 publications

Comparison of starch films and effect of different rice starch‐based coating formulations on physical properties of walnut during storage time at accelerated temperature

Comparison of starch films and effect of different rice starch‐based coating formulations on physical properties of walnut during storage time at accelerated temperature

Adipate and Citrate Esters as Plasticizers for Poly(Lactic Acid)/Thermoplastic Starch Sheets

Desenvolvimento de embalagem biodegradável ativa a base de fécula de mandioca e agentes antimicrobianos naturais.

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