Invention Grant
US09012698B2 Method of extracting lutein/xanthophylls from natural materials and highly purified lutein/xanthophylls obtained from the method thereof
有权
从天然材料中提取叶黄素/叶黄素的方法和从其方法获得的高度纯化的叶黄素/叶黄素
- Patent Title: Method of extracting lutein/xanthophylls from natural materials and highly purified lutein/xanthophylls obtained from the method thereof
- Patent Title (中): 从天然材料中提取叶黄素/叶黄素的方法和从其方法获得的高度纯化的叶黄素/叶黄素
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Application No.: US14241435Application Date: 2012-08-24
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Publication No.: US09012698B2Publication Date: 2015-04-21
- Inventor: Phatthanon Prasitchoke , Chaya Chandavasu , Artiwan Shotipruk , Panatpong Boonnoun
- Applicant: Phatthanon Prasitchoke , Chaya Chandavasu , Artiwan Shotipruk , Panatpong Boonnoun
- Applicant Address: TH Bangkok TH Bangkok
- Assignee: PTT Global Chemical Public Company Limited,Chulalongkorn University
- Current Assignee: PTT Global Chemical Public Company Limited,Chulalongkorn University
- Current Assignee Address: TH Bangkok TH Bangkok
- Agency: Sheppard, Mullin, Richter & Hampton LLP
- Priority: TH1101001774 20110826
- International Application: PCT/TH2012/000037 WO 20120824
- International Announcement: WO2013/032412 WO 20130307
- Main IPC: C07C403/24
- IPC: C07C403/24 ; C09B61/00
Abstract:
The present invention provides the new method for extracting lutein from natural materials wherein the said method comprises of modification of natural lutein ester in the natural materials to free lutein and/or low molecular weight lutein ester, extraction of the said natural materials with supercritical fluid at the optimal conditions. The said method yields high amount of crude lutein with high purity due to the mild condition used for extraction. Therefore, no degradation of the desired product is occurred. The crude lutein can be further purified with chromatography in order to obtain the highly purified lutein. The method according to this invention can be applied to the extraction of xanthophylls or others beside lutein.
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