Production and characterization of films based on blends of chitosan from blue crab ( Callinectes sapidus ) waste and pectin from Orange ( Citrus sinensis Osbeck ) peel
| Autor: | Jesús Mejía Salcedo, Paulo José do Amaral Sobral, Latife Lúquez Pérez, Luis Jaime Pérez Cordoba, Ricardo Duran Baron |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
food.ingredient
Pectin Brachyura Chitin 02 engineering and technology engineering.material Biochemistry Chitosan chemistry.chemical_compound Biopolymers 0404 agricultural biotechnology food Plasticizers Structural Biology Botany Glycerol Animals Solubility Molecular Biology QUITOSANA Food Packaging Plasticizer 04 agricultural and veterinary sciences General Medicine 021001 nanoscience & nanotechnology 040401 food science chemistry engineering Pectins Biopolymer 0210 nano-technology Citrus × sinensis Citrus sinensis Nuclear chemistry |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0141-8130 |
| DOI: | 10.1016/j.ijbiomac.2017.02.004 |
| Popis: | The objective of this study was to develop and characterize films based on blends of chitosan and pectin, produced in laboratory scale, from industrial wastes. The chitosan was obtained by termoalcaline deacetylation of chitin, extracted from blue crab (Callinectes sapidus) waste and characterized according to degree of deacetylation (DD) and viscosimetric molecular weight (Mw); and pectin was extracted by conventional heating, from orange (Citrus sinensis Osbeck) peel and characterized according to degree of esterification (DE) and molecular weight (Mw). The Ch:P based films were prepared by the casting method in different Ch:P ratios [0: 100, 25:75, 50:50, 75:25 and 100:0], and compared to two controls [0:100 and 100:0], of commercial pectin and chitosan. Glycerol was used as a plasticizer at concentrations of 0.2g/g macromolecules. The addition of high concentrations of pectin in the formulations resulted in films with high solubility and an increase in moisture. No significant difference (P>0.05) in the degree of swelling (DS) and water vapor permeability (WVP) of the films was observed. Ch:P blend films were less stiff and therefore more elastic and flexible than films based on only one biopolymer. The control films presented better results in terms of color, being brighter and less opaque than other film formulations. These data suggest that chitosan or pectin obtained from agro-industrial waste is a potential matrix to produce biodegradable films for future food applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect