Colour properties of poly(vinyl alcohol)–anthocyanin blends

Aziz, N. and Mat Nor, N.A. and Mohd-Adnan, A.F. and Taha, R.M. and Arof, Abdul Kariem (2016) Colour properties of poly(vinyl alcohol)–anthocyanin blends. Optical and Quantum Electronics, 48 (10). p. 451. ISSN 0306-8919

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Official URL: https://doi.org/10.1007/s11082-016-0715-7

Abstract

This work aims to analyze the colour variation and stability of anthocyanin colourant. Anthocyanin has been solvent-extracted from fruit pulps of Melastoma malabathricum. Different weight percentage of ferulic acid (FA) have been added to the anthocyanin solution and exposed to 17.55 lux UV-B irradiation for 93 days. The colour stability has been evaluated using Commission Internationale de l’Eclairage (CIE) colour system. The FA has been added to anthocyanin solution that contains.5 % trifluoroacetic acid (TFA) has been mixed with poly (vinyl alcohol) or PVA for the development of a coating system. The PVA–anthocyanin coating without FA has the most unstable colour. Coating with 3 % FA addition resulted in better colour stability. Colour stability has been analysed via lightness (L*), chromaticity(c*), hue angle (H°), coordinates a* and b* as well as colour saturation.

Item Type: Article
Uncontrolled Keywords: Anthocyanin; Melastoma malabathricum; Colour stability; Polyvinyl alcohol (PVA); Ferulic acid (FA)
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QH Natural history
Divisions: Faculty of Science > Dept of Physics
Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 04 Dec 2017 03:24
Last Modified: 04 Oct 2018 09:26
URI: http://eprints.um.edu.my/id/eprint/18409

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