Effect of natural deep eutectic solvent and chitosan nanoparticles on physicochemical properties of locust bean gum films

被引：22

作者：

Grala, Dominika ^{[1
,2
,3
]}

Biernacki, Krzysztof ^{[1
]}

Freire, Cristina ^{[2
]}

Kuzniarska-Biernacka, Iwona ^{[2
]}

Souza, Hileia K. S. ^{[1
,2
]}

Goncalves, Maria P. ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, Dept Engn Quim, REQUIMTE LAQV, Rua Dr Roberto Frias, P-4200465 Porto, Portugal

[2] Univ Porto, Fac Ciencias, Dept Quim & Bioquim, REQUIMTE LAQV, Rua Campo Alegre S-N, P-4169007 Porto, Portugal

[3] Lodz Univ Technol, Fac Chem, Zeromskiego 116, PL-90924 Lodz, Poland

来源：

FOOD HYDROCOLLOIDS | 2022年 / 126卷

关键词：

Green chemistry; Natural deep eutectic solvents; Green solvents; Locust bean gum; Chitosan; EDIBLE FILMS; MECHANICAL-PROPERTIES; AGAR FILMS; FABRICATION; WATER; PERMEABILITY; PLASTICIZER; PECTIN; FTIR; ACETYLATION;

D O I：

10.1016/j.foodhyd.2021.107460

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Novel bio-based films containing Locust Bean Gum (LBG) and Chitosan (CH) or Chitosan nanoparticles (CHNPs)/natural deep eutectic solvents (NADES) were investigated. The films with different LBG and CH-NPs w/w ratios in the absence or in the presence of NADES plasticizer were prepared by a semi-continuous knife-coating process. The detailed characterization of the films confirmed their transparency, uniformity, and homogeneity, without cracks or pores. FTIR spectra confirmed physical entanglements and miscibility between film components and suggested the occurrence of interaction between CH and LBG components. The mechanical, optical, rheological, thermal and water barrier properties of the new films were also evaluated. It was found that addition of CH-NPs reduced the apparent viscosity of LBG solution, and that the presence of NADES provided more flexible films with less mechanical and barrier resistance. In contrast, the addition of CH-NPs to the LBG solution provided films with enhancement of tensile strength and Young's modulus and a slight increase in water vapour permeability.

引用

页数：12

共 56 条

[31] Calculation of Mark-Houwink-Sakurada (MHS) equation viscometric constants for chitosan in any solvent-temperature system using experimental reported viscometric constants data [J].