RT Journal Article
T1 Effect of Mesoporous Silica Nanoparticles on Glycerol-Plasticized Anionic and Cationic Polysaccharide Edible Films
A1 Giosafatto, Concetta
A1 Sabbah, Mohammed
A1 Al-Asmar, Asmaa
A1 Esposito, Marilena
A1 Sánchez Sánchez, Alfredo
A1 Villalonga Santana, Reynaldo
A1 Cammarota, Marcella
A1 Mariniello, Loredana
A1 Di Pierro, Prospero
A1 Porta, Raffaele
AB This study describes the production of reinforced polysaccharide (PS)-based films, by adding mesoporous silica nanoparticles (MSNs), to either pectin (PEC) or chitosan (CH) film forming solutions, either containing glycerol (GLY) as a plasticizer, or not. Film characterization demonstrated that MSNs and GLY were able to significantly increase the plasticity of both PS-based biomaterials and that the interactions between PSs and nanoparticles were mainly due to hydrogen bonds. Moreover, MSN-containing films were less transparent, compared to controls prepared with either PEC or CH, in the absence of GLY, while all films containing MSNs, but obtained with the plasticizer, were as transparent as the films prepared with PEC or CH alone. MSN addition did not influence the thickness of the PEC-based films, but increased that of CH-based ones, prepared both in the absence and presence of GLY. MSN-containing PEC-based films possessed a more compact and homogeneous morphology, with respect to both control films, prepared, with or without GLY, and to the CH-based films, containing MSNs, the structure of which showed numerous agglomerations. Finally, moisture content and uptake were reduced, in all films prepared in the presence of MSNs. The suggested addition of MSNs might have given rise to novel biomaterials for food or pharmaceutical applications.
PB MDPI
SN 2079-6412
YR 2019
FD 2019-03-05
LK https://hdl.handle.net/20.500.14352/12597
UL https://hdl.handle.net/20.500.14352/12597
LA eng
NO Italian Ministries of Foreign Affairs and International Cooperation
NO Agricultural, Food, and Forestry Policies
DS Docta Complutense
RD 29 sept 2024