by
Hedvig Landenius Enegren, Francesco Meo
Language: English
Release Date: April 30, 2017
Purple dye is extracted from the glands of the molluscs Hexaplex trunculus, Bolinus Brandaris and Stramonita Haemastoma which, through a chemical reaction of photosynthesis, produces hues ranging from dark red to bluish purple colour. The importance of purple dye since ancient times as a status symbol,...