Aziz, N. and Mat Nor, N.A. and Mohd-Adnan, A.F. and Taha, Rosna Mat and Arof, Abdul Kariem (2016) Colour properties of poly(vinyl alcohol)–anthocyanin blends. Optical and Quantum Electronics, 48 (10). p. 451. ISSN 0306-8919, DOI https://doi.org/10.1007/s11082-016-0715-7.
Full text not available from this repository.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 |
|---|---|
| Funders: | University of Malaya: PG172-2014B grant |
| 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 > Department of Physics Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Dec 2017 03:24 |
| Last Modified: | 18 Dec 2019 02:25 |
| URI: | http://eprints.um.edu.my/id/eprint/18409 |
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