1. Natural dyes: sources, chemistry, application and sustainability issues;Saxena,2014
2. Natural pigments as potential food colourants: a review;Shetty;Trends Biosci.,2017
3. Advantages and considerations for the applications of natural food pigments in the food industry;Ranaweera;J. Res. Technol. Eng.,2020
4. Anthocyanins of fruits and vegetables-their occurrence, analysis and role in human nutrition;Horbowicz;Veg. Crop. Res. Bull.,2008
5. Anthocyanins: natural colorants with health-promoting properties;He;Annu. Rev. Food. Sci. T.,2010