Cellulose microfibrillated suspension of carrots obtained by mechanical defibrillation and their application in edible starch films
| Autor: | Ariel Costa Rodrigues, Isadora Rebouças Nolasco de Oliveira, Kelen Cristina dos Reis, Eduardo Valério de Barros Vilas Boas, Evandro Galvão Tavares Menezes, Thaís Ferreira da Silva, Isabela Costa Guimarães |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Starch Scanning electron microscope 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Edible coating chemistry.chemical_compound Magazine law Botany Ultimate tensile strength Cellulose Composite material Suspension (vehicle) Corn starch biology 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Daucus carota chemistry Microfibrillated cellulose Particle size 0210 nano-technology Agronomy and Crop Science |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV |
| Popis: | A suspension of microfibrillated cellulose (MFC) of carrot was obtained by mechanical defibrillation and it was applied as reinforcement in starch edible films. It was investigated the effect of different amounts of carrots and different numbers of passages through the defibrillator on the resulting suspensions of carrot MFC films. It was also investigated the physical, mechanical, morphological and structural properties of films from corn starch reinforced with suspensions of carrot MFC as a function of the concentration of carrot and the number of passages through the mechanical defibrillator. The carrot concentration and number of passages through the mechanical defibrillator affected the final particle size, film color and thickness, water vapor permeability (WVP), and tensile strength (TS) of the suspensions of carrot MFC films. Starch films reinforced with suspensions of carrot MFC had a lower WVP and higher TS than starch films. Scanning electron microscopy (SEM) shows that the largest number of passages through the mechanical defibrillator results in less aggregation of MFC, making it possible to obtain a good interaction between the suspensions of carrot MFC and starch matrix. |
| Databáze: | OpenAIRE |
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