23 Jul Alkannia and its extraction method
Abstract
The present invention belongs to the field of biological engineering technology, relates to a method for extracting naphthaquinone pigment from artificial cultivated lithospermum officinale root (alkanet) by using supercritical CO2 extraction technology. Its main component is alkannin and its derivative. Said invented plant red pigment not only possesses the characteristics of pure and bright colour, strong colouring power and permeability, light resistance and heat resistance, but also has several pharmacological functions of resisting inflammation, sterilizing, resisting virus and promotinggrowth of granulation tissue, so that it is a broad-spectrum natural health-care colouring agent, its product is bright red, can be made into paste and powder, can be extensively used in the fields of pharmaceutical, food, beverage, cosmetics and high-grade silk dyeing and printing industries, etc..
Year: 2000
Country: CN
Doc No: 1253972