TY - JOUR
T1 - Hexamethyldisiloxane cold plasma treatment and amylose content determine the structural, barrier and mechanical properties of starch-based films
AU - Sifuentes-Nieves, Israel
AU - Hernández-Hernández, Ernesto
AU - Neira-Velázquez, Guadalupe
AU - Morales-Sánchez, Eduardo
AU - Mendez-Montealvo, Guadalupe
AU - Velazquez, Gonzalo
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - In this study, the effect of amylose content and cold plasma treatment on starch films properties was investigated. Films from normal (30%) and high amylose (50 and 70%) starches were subjected to hexamethyldisiloxane (HMDSO) cold plasma treatment. Morphological, structural, mechanical and barrier properties of the films were evaluated. The amount of remnant starch granules (RSG) in the films depended on the amylose content and on the gelatinization extent of the starch. This behavior was corroborated on the films from starch with 50% amylose, where the loss of RSG resulted in poor barrier properties and high hydrophilicity. Moreover, HMDSO cold plasma treatment incorporated methyl groups improving the hydrophobic properties and favored the helix ordering of the starch components resulting in a limited water-film interaction. Furthermore, the simultaneous effect of HMDSO coating and the ordering of the structures reinforced the surface of the films, improving the mechanical properties.
AB - In this study, the effect of amylose content and cold plasma treatment on starch films properties was investigated. Films from normal (30%) and high amylose (50 and 70%) starches were subjected to hexamethyldisiloxane (HMDSO) cold plasma treatment. Morphological, structural, mechanical and barrier properties of the films were evaluated. The amount of remnant starch granules (RSG) in the films depended on the amylose content and on the gelatinization extent of the starch. This behavior was corroborated on the films from starch with 50% amylose, where the loss of RSG resulted in poor barrier properties and high hydrophilicity. Moreover, HMDSO cold plasma treatment incorporated methyl groups improving the hydrophobic properties and favored the helix ordering of the starch components resulting in a limited water-film interaction. Furthermore, the simultaneous effect of HMDSO coating and the ordering of the structures reinforced the surface of the films, improving the mechanical properties.
KW - Amylose
KW - HMDSO cold plasma
KW - Starch
UR - http://www.scopus.com/inward/record.url?scp=85057537113&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2018.11.211
DO - 10.1016/j.ijbiomac.2018.11.211
M3 - Artículo
C2 - 30476514
AN - SCOPUS:85057537113
SN - 0141-8130
VL - 124
SP - 651
EP - 658
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -