Kapoor, V.P., & Pushpangadan, P. 2002 Natural dye-based: Herbal Gulal.. Natural Product Radiance 1(2): 8-14.

Notes: This paper describes a technological process for the preparation of synergistic herbal dry colour composition (or Gulal) from natural dyes extracted from Curcuma longa (curcumin), Bixa orellana (bixin and nor-bixin), Indigofera tinctoria (indigoid), Laccifer lacca [Kerria lacca] (lac dye) and chlorophyll (chlorophyllin) and blended in specific proportions under specific conditions. The novelty and main advantages of the process are discussed.