1. Natural colorants: Food colorants from natural sources;Sigurdson;Annu. Rev. Food Sci. Technol.,2017
2. Food coloring: the natural way;Lakshmi;Res. J. Chem. Sci.,2014
3. Carotenoids, Cochineal, and Copper: Food Coloring Through the Ages, Chemistry’s Role in Food Production and Sustainability: Past and Present;Orna,2019
4. Food additives: colorants;Sezgin,2017
5. A review article on edible pigments properties and sources as natural biocolorants in foodstuff and food industry;Aberoumand;World J. Dairy Food Sci.,2011