TY - JOUR
T1 - Structural characterization and properties of konjac glucomannan and zein blend films
AU - Wang, Kai
AU - Wu, Kao
AU - Xiao, Man
AU - Kuang, Ying
AU - Corke, Harold
AU - Ni, Xuewen
AU - Jiang, Fatang
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/12
Y1 - 2017/12
N2 - A series of konjac glucomannan (KGM)/zein blend films were successfully prepared with zein in proportions 0–30%. The hydrophobicity of blend films were significantly stronger than pure KGM film, indicated by increased contact angle, swelling and solubility properties, and moisture absorption. Moreover, other properties including mechanical, thermal, water vapor and oxygen barrier were also found to be increased. FTIR indicated that hydrogen bond interactions and Maillard reaction occurred between KGM and zein molecules, and microstructural observations indicated that the aggregated zein was homogeneously dispersed in the KGM continuous matrix. However, these zein aggregations were larger with increased proportion of zein, leading to weakened molecular interactions with zein proportion >10%. A mixing ratio of KGM:zein = 9:1 was suggested to provide best film properties. This research offers an alternative improvement for KGM-based biodegradable films.
AB - A series of konjac glucomannan (KGM)/zein blend films were successfully prepared with zein in proportions 0–30%. The hydrophobicity of blend films were significantly stronger than pure KGM film, indicated by increased contact angle, swelling and solubility properties, and moisture absorption. Moreover, other properties including mechanical, thermal, water vapor and oxygen barrier were also found to be increased. FTIR indicated that hydrogen bond interactions and Maillard reaction occurred between KGM and zein molecules, and microstructural observations indicated that the aggregated zein was homogeneously dispersed in the KGM continuous matrix. However, these zein aggregations were larger with increased proportion of zein, leading to weakened molecular interactions with zein proportion >10%. A mixing ratio of KGM:zein = 9:1 was suggested to provide best film properties. This research offers an alternative improvement for KGM-based biodegradable films.
KW - Biodegradable film
KW - Compatibility
KW - Film hydrophobicity
UR - http://www.scopus.com/inward/record.url?scp=85028078548&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2017.07.127
DO - 10.1016/j.ijbiomac.2017.07.127
M3 - 文章
C2 - 28739406
AN - SCOPUS:85028078548
SN - 0141-8130
VL - 105
SP - 1096
EP - 1104
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -