A novel method for the preparation of starch films and coatings.
425 - 431.
In this work, maize starch was used to demonstrate a novel method which enables the preparation of starch films and coatings with good thickness control. 5% starch in de-ionized water (w/v) was gelatinized at 120 degrees C for 30 min, subsequently small quantities of dispersant and ethanol were added and subjected to ultrasonic disruption to make a stable modified starch Solution. Electrohydrodynamic behavior of this Solution was studied and optimum conditions for film preparation were determined. The solution was then electrosprayed in the cone-jet mode and films were collected on a rotating plate. Film thickness was investigated by electron microscopy. Films of varying thickness were prepared by varying the electrospraying time and their characteristics are compared with solvent-cast films. (c) 2005 Elsevier Ltd. All rights reserved.
|Title:||A novel method for the preparation of starch films and coatings|
|Keywords:||starch, electrohydrodynamic atomization, films, coatings, SEM, WAXY MAIZE STARCH, CONE-JET MODE, MECHANICAL-PROPERTIES, BARRIER PROPERTIES, SPRAY DEPOSITION, BREAK-UP, AMYLOSE, LIQUIDS, PERMEABILITY, PLASTICIZERS|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Mechanical Engineering|
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