Characterization of agar/soy protein biocomposite films: Effect of agar on the extruded pellets and compression moulded films

被引：76

作者：

Garrido, T. ^{[1
]}

Etxabide, A. ^{[1
]}

Guerrero, P. ^{[1
]}

de la Caba, K. ^{[1
]}

机构：

[1] Univ Basque Country UPV EHU, Escuela Ingn Gipuzkoa, BIOMAT Res Grp, Plaza Europa 1, Donostia San Sebastian 20018, Spain

来源：

CARBOHYDRATE POLYMERS | 2016年 / 151卷

关键词：

Agar; Soy protein; Extrusion; Compression; Biocomposite films; NANOPARTICLES COMPOSITE FILMS; TWIN-SCREW EXTRUDER; SOY PROTEIN; POLYSACCHARIDE INTERACTIONS; STRUCTURAL-CHARACTERIZATION; MECHANICAL-PROPERTIES; FUNCTIONAL-PROPERTIES; EXTRUSION; BLENDS; ENERGY;

D O I：

10.1016/j.carbpol.2016.05.089

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Agar/soy protein biocomposite films were successfully processed by extrusion and compression moulding, obtaining transparent and homogeneous films. The conformational changes occurred during the extrusion process and the effect of agar on the final properties were analyzed. As shown by differential scanning calorimetry (DSC) and specific mechanical energy (SME) values, during the extrusion process protein denatured and unfolded protein chains could interact with agar. These interactions were analyzed by Fourier transform infrared spectroscopy (FTIR) and the secondary structure was determined from the amide I band. Those interactions were supported by the decrease of film solubility. Furthermore, the good compatibility between agar and soy protein was confirmed by the images from scanning electron microscopy (SEM). (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：408 / 416

页数：9

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