Ultrasound-assisted extraction of natural brown pigment from Eleochairis toberosa peel;

The conditions for extracting a natural brown pigment were studied.

In the procession of extracting the pigment of natural brown cotton,16 kinds of chemicals were selected as the solvents to dissolve the fiber of natural brown cotton,of which both the distilled water and NaOH(pH=9) were the most effective and economical.

Research on dyeing effect of wool fiber with natural pigment in supercritical carbon dioxide;

Purification and research progress on the natural pigment;

A novel equipment for extracting natural pigments:chute extractor;

Study on enhanced stability of nature pigment by acylation;

Application of supercritical CO_2 extraction in production of natural pigments;

With the characteristics of"natural,nutrition, multi-functional"that according with the"natural and safe"consuming psychology of modem consumer,natural colors have illustrated a good prospect of application and extensi.