title: Interactions between carboxymethyl konjac glucomannan and soy protein isolate in blended films.
abstract: To elucidate biopolymer interactions between carboxymethyl konjac glucomannan (CMKGM) and soy protein isolate (SPI) in different ratios on physicochemical properties of the blended films, biodegradable CMKGM/SPI films were prepared and characterized. The results showed that CMKGM and SPI are highly compatible in blended film formation, and that Maillard reactions and hydrogen bonds interactions between CMKGM and SPI occurred. The water adsorption of the CMKGM/SPI films progressively decreased with increasing CMKGM level, the surface wettability of the blended films was improved with increasing CMKGM content; the CMKGM/SPI blend films had enhanced tensile strength (TS) and elongation at break (EAB) compared to pure CMKGM and SPI films; the oxygen permeability of blend films was decreased; the roughness was decreased with increasing CMKGM content. Moreover, the CMKGM/SPI film was biocompatible and biodegradable.
authors.affiliation: Glyn O. Philips Hydrocolloid Research Centre at HUT, Hubei University of Technology, Wuhan 430068, China.
authors.forename: Le
authors.initials: L
authors.lastname: Wang
authors.forename: Man
authors.initials: M
authors.lastname: Xiao
authors.forename: Shuhong
authors.initials: S
authors.lastname: Dai
authors.forename: Jia
authors.initials: J
authors.lastname: Song
authors.forename: Xuewen
authors.initials: X
authors.lastname: Ni
authors.forename: Yapeng
authors.initials: Y
authors.lastname: Fang
authors.forename: Harold
authors.initials: H
authors.lastname: Corke
authors.forename: Fatang
authors.initials: F
authors.lastname: Jiang
mesh_terms: D000327:Adsorption; D000818:Animals; D001234:Aspergillus niger / Q000378:metabolism; D002460:Cell Line; D055598:Chemical Phenomena; D008351:Mannans / Q000737:chemistry* / Q000378:metabolism*; D008422:Materials Testing; D055595:Mechanical Phenomena; D051379:Mice; D010100:Oxygen / Q000737:chemistry; D010539:Permeability; D011485:Protein Binding; D030262:Soybean Proteins / Q000737:chemistry* / Q000378:metabolism* / Q000633:toxicity; D017155:Wettability
chemical_list: D008351:Mannans; D030262:Soybean Proteins; C538690:carboxymethyl konjac glucomannan; D010100:Oxygen
keywords: AFM; Biopolymer interactions; Blending; CMKGM; Carboxymethyl konjac glucomannan; DSC; DVS; EAB; FTIR; Fourier transform infrared; KGM; SEM; SPI; Soy protein isolate; TS; X-ray diffraction; XRD; atomic force microscopy; carboxymethyl konjac glucomannan; differential scanning calorimetry; dynamic vapour sorption; elongation at break; konjac glucomannan; scanning electron microscopy; soy protein isolate; tensile strength