.../methodology/approach Exactly 10 potential dye-yielding plants were selected based on their colour (mostly purple, red, maroon and pink). Solvent extraction was used to extract the dyes and pH differential method was used to determine the concentrations of anthocyanin in the extracted dyes. Different...

... 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...

...Qi Yang; ZhiQiang Feng; RuanBing Zhang; YunPu Wang; DengLe Duan; Qin Wang; XiaoYu Zou; YuHuan Liu Purpose This study aims to develop a green, economical and efficient ultrasonic-/microwave assisted extraction (UMAE) process for the extraction of anthocyanins. Design/methodology/approach After...

...Hossein Barani; Homa Maleki Purpose Finding blue colorants from natural sources is extremely difficult and, usually, the anthocyanin compounds are used for producing the blue color. This study aims to apply the Red Cabbage as a natural colorant to obtain different colors on wool yarn, as well...

...Z.H.Z. Abidin; N.S.A. Manah; A.N. Hadi; N.S. Saugi; F.A. Fuad; N.A. Mazni; H.C. Hassan; M.A. Careem; A.K. Arof Purpose This paper aims to focus on a comparison study of the visible stability of natural blue dye consisting anthocyanin molecules extracted from Clitoria ternatea in coating...

...S.V. Lee; R. Usop; A.N. Hadi; N.A. Mazni; S.R. Majid; A.K. Arof; N.A. Halim; Z.H.Z. Abidin Purpose – The purpose of this paper is to observe the thermal and colour stabilities of coating films consisting of natural dye anthocyanin colourant with acid and nitrate salt as additives. Design...

...S.V. Lee; A.N. Hadi; Z.H.Z. Zainal Abidin; N.A. Mazni; N.A. Halim; R. Usop; H.C. Hassan; S.R. Majid; A.K. Arof Purpose – The purpose of this paper is to observe the colour and thermal stability of natural red dye consisting of anthocyanin with addition of different aqueous acids and applied...

...Vengadaesvaran V. Balakrishnan; S.V. Lee; N.A. Halim; A.K. Arof; Z.H.Z. Abidin Purpose The purpose of this paper is to develop a new water‐based coating system composed of poly(vinyl alcohol) and anthocyanin colourant extracted from Hibiscus sabdariffa L. and to characterise the system. Design...

...Vengadaesvaran V. Balakrishnan; S.V. Lee; B. Vengadaesvaran; A.K. Arof; Z.H.Z. Abidin Purpose The purpose of this paper is to develop a new water based coating system composed of poly(acrylamide‐co‐acrylic acid) and anthocyanin colourant extracted from Hibiscus sabdariffa L...

...N. Aziz; N.A. Mat Nor; A.F. Mohd‐Adnan; R.M. Taha; A.K. Arof Purpose The purpose of this paper is to evaluate the stability of anthocyanin colorant with and without ferulic acid (FA) stabilising agent in a polyvinyl alcohol (PVA) binder coating system. Design/methodology/approach...