Eco-friendly Color Production for Holi Celebration: A Mini Review

Abstract

Many synthetic colours formed from chemicals have adverse effects on environment. Biocolours are nowadays used in holi festival. Colours are also becoming integral part of modern day life. Use of colours are becoming a part of our everyday life. There is need of nontoxic colours in order to remove substances like lead, cadmium, chromium and cobalt entering in the food chain. Biocolours are mainly prepared from plant origins. The current review reports research and studies on environmental friendly production of colours. A natural colour, like the colour of unbleached and undyed fabric or unvarnished and unstained wood. A colour that accurately reproduces the real colour of the object shown in a photograph. Holi colours are traditionally particle powders or fluid splashes sprayed by hand, toy guns, or slamming balloons, and are sourced from natural sources. However, high performance liquid chromatography has recently revealed that these colours are polluted with harmful substances like malachite green, rhodamine, gentian violet, and auramine O. 2, 3 Lead oxide, copper sulphate, mercury sulphite, chromium iodide, silica, mica dust, and other adulterants are used to give carrier material attractive colours. It has even been proved that such powders can be contaminated by fungi. Chemicals, their constituent endotoxins, and fungal contamination cause ocular surface toxicity in granulocytes, resulting in ocular surface toxicity. 4 The ocular signs of ocular alkaline injury might range from a simple chemical eye to a secondary infectious corneal ulcer, all of which fall under the umbrella of ocular alkaline damage. Unfortunately, nothing is known regarding clinical effects that these colours have.