Abstract：
:An edible hydroxypropyl starch (HPS) based bilayer film with a waterproof layer of zein was successfully prepared through a two-step solvent casting method. The morphology, mechanical properties, as well as water barrier properties of the bilayer film were systematically studied. Results showed that bilayer film presented smooth surface morphology with an improved visibility, and there was an adhesion interface between two layers. Water resistance and UV barrier property, as well as mechanical property, were significantly improved. In addition, the interactions between starch and zein through hydrogen bonding were analyzed by Fourier-transform infrared spectroscopy (FTIR) and molecular dynamics (MD) simulation. In MD simulation, the relative trajectories were dynamically presented. Conjunction of starch and zein through hydrogen bonding among the hydroxyl and amino (carboxyl) groups was identified, and stronger affinity with starch mainly rooted from asparagine (ASN) and tyrosine (TYR) residues.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Chen X,Cui F,Zi H,Zhou Y,Liu H,Xiao Jdoi
10.1016/j.ijbiomac.2019.08.240subject
Has Abstractpub_date
2019-12-01 00:00:00pages
1175-1182eissn
0141-8130issn
1879-0003pii
S0141-8130(19)31970-1journal_volume
141pub_type
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