Preparation of free-standing films from kafirin protein microparticles: Mechanism of formation and functional properties

Janet Taylor; John R. N. Taylor; Peter S Belton; Amanda Minnaar

doi:10.1021/jf900957s

Preparation of free-standing films from kafirin protein microparticles: Mechanism of formation and functional properties

Janet Taylor, John R. N. Taylor, Peter S Belton, Amanda Minnaar

School of Chemistry

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A method of preparing free-standing films using kafirin microparticles made by phase separation from acetic acid is described. Film preparation involved the suspension of the microparticles in acetic acid solution containing plasticizer. On evaporation of the acetic acid, a complete, smooth, flexible, transparent film was formed. A minimum concentration of acid was required to form a cohesive film relative to the concentration of kafirin. This was approximately 10.8:1, percent acetic acid to percent kafirin. Film formation appears to be by controlled aggregation of kafirin microparticles, followed by dissolution of the microparticles in acetic acid and drying into a cohesive film. The functional properties of microparticle films were generally superior to films cast directly from a solution of kafirin, at the same protein content. Kafirin microparticle films were very thin (

Original language	English
Pages (from-to)	6729-6735
Number of pages	7
Journal	Journal of Agricultural and Food Chemistry
Volume	57
Issue number	15
DOIs	https://doi.org/10.1021/jf900957s
Publication status	Published - 17 Jul 2009

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10.1021/jf900957s

Cite this

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title = "Preparation of free-standing films from kafirin protein microparticles: Mechanism of formation and functional properties",

abstract = "A method of preparing free-standing films using kafirin microparticles made by phase separation from acetic acid is described. Film preparation involved the suspension of the microparticles in acetic acid solution containing plasticizer. On evaporation of the acetic acid, a complete, smooth, flexible, transparent film was formed. A minimum concentration of acid was required to form a cohesive film relative to the concentration of kafirin. This was approximately 10.8:1, percent acetic acid to percent kafirin. Film formation appears to be by controlled aggregation of kafirin microparticles, followed by dissolution of the microparticles in acetic acid and drying into a cohesive film. The functional properties of microparticle films were generally superior to films cast directly from a solution of kafirin, at the same protein content. Kafirin microparticle films were very thin (",

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T1 - Preparation of free-standing films from kafirin protein microparticles: Mechanism of formation and functional properties

AU - Taylor, Janet

AU - Taylor, John R. N.

AU - Belton, Peter S

AU - Minnaar, Amanda

PY - 2009/7/17

Y1 - 2009/7/17

N2 - A method of preparing free-standing films using kafirin microparticles made by phase separation from acetic acid is described. Film preparation involved the suspension of the microparticles in acetic acid solution containing plasticizer. On evaporation of the acetic acid, a complete, smooth, flexible, transparent film was formed. A minimum concentration of acid was required to form a cohesive film relative to the concentration of kafirin. This was approximately 10.8:1, percent acetic acid to percent kafirin. Film formation appears to be by controlled aggregation of kafirin microparticles, followed by dissolution of the microparticles in acetic acid and drying into a cohesive film. The functional properties of microparticle films were generally superior to films cast directly from a solution of kafirin, at the same protein content. Kafirin microparticle films were very thin (

AB - A method of preparing free-standing films using kafirin microparticles made by phase separation from acetic acid is described. Film preparation involved the suspension of the microparticles in acetic acid solution containing plasticizer. On evaporation of the acetic acid, a complete, smooth, flexible, transparent film was formed. A minimum concentration of acid was required to form a cohesive film relative to the concentration of kafirin. This was approximately 10.8:1, percent acetic acid to percent kafirin. Film formation appears to be by controlled aggregation of kafirin microparticles, followed by dissolution of the microparticles in acetic acid and drying into a cohesive film. The functional properties of microparticle films were generally superior to films cast directly from a solution of kafirin, at the same protein content. Kafirin microparticle films were very thin (

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DO - 10.1021/jf900957s

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JO - Journal of Agricultural and Food Chemistry

JF - Journal of Agricultural and Food Chemistry

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