... reviewed literature in various areas such as isolation methods and catalytic properties of pigments. Findings With vast growing research in the field of catalytic activities of various pigments like chlorophyll, anthocyanin and flavonoids, there is still scope for further research for the pigments...

...R. Usop; L. Sulaiman; N.A. Mazni; N.S.A. Manah; N. Anuar; A.K. Arof; Z.H.Z. Abidin Purpose The purpose of this paper is to study the colour stability and water content resistivity of the green colour coating paint film (consisting of chlorophyll) during exposure to ultraviolet A (UV-A). Design...

...R. Usop; Z.H.Z Abidin; N.A. Mazni; A.N. Hadi; N.A. Halim; R.M. Taha; M.A. Careem; S.R. Majid; A.K. Arof Purpose This paper aims to study the colour stability of chlorophyll and the effect of copper (II) nitrate – Cu(NO₃)₂ – as an additive in natural dye coating films after...

.... Findings – Although glycosides was not found in this species, tests for tannins and flavonoids were positive in all samples. The IC50 values were also comparable to commercial antioxidant ascorbic acid with 34.92 per cent inhibition. Chlorophyll a and b were detected in stem and leaf using UV...