紫草原是野生植物,根粗壮,外表紫红色。紫草在《本草纲目》中记载为上品中药,有杀菌、抑菌、解表和凉血等功能。随着科学技术的发展,人们发现紫草不仅有医疗作用,而且可提取理想的天然红色素。世界各国在食品、饮料、色酒、化妆品、医药等方面所需要的色素,都是化学合成的,对人体有害,长期食用,可产生致癌细胞。因此,一些发达国家相继废除 Lithospermum is a wild plant, root thick, the appearance of purple. Comfrey in the “Compendium of Materia Medica” recorded as top grade medicine, bactericidal, antibacterial, solution table and cooling blood and other functions. With the development of science and technology, Lithospermum was found not only to have a medicinal effect, but also to extract the ideal natural red pigment. All the countries in the world in the food, beverage, color wine, cosmetics, medicine and other needs of the pigment, are chemically synthesized, harmful to the human body, long-term consumption, can produce cancer-causing cells. Therefore, some developed countries have been abolished