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Research progress on extraction of gardenia yellow pigment

YE Nan1,CHEN Feng 1,WANG Xi-ping 2,LUO Wu-kui 1,DONG Sheng-xiong1,2(1.Department of Chemistry and Environmental Science,Ningde Normal University,Ningde 352100,China; 2.College of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou 350108,China)  
Gardenia yellow is the natural pigment which extracted from gardenia,and it has extensive application in food,medical,and cosmetics field.At present,as the production technology of gardenia yellow pigment is complex with the low colourity and the low yield,producing gardenia yellow pigment with high purity and high colourity has been one of the research focuses these years.In this paper,the research results of gardenia yellow pigment in the last ten years were reviewed according to the methods of extraction and purification.Especially,the chemical component of gardenia and the technology condition of extraction and purification were discussed.The future development of gardenia yellow was suggested as well.
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