The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2014
Filed:
Mar. 04, 2010
Xinde Xu, Zhejiang Province, CN;
Guohua Wei, Zhejiang Province, CN;
Xuebing Xiang, Zhejiang Province, CN;
Bin Shao, Zhejiang Province, CN;
Xinde Xu, Zhejiang Province, CN;
Guohua Wei, Zhejiang Province, CN;
Xuebing Xiang, Zhejiang Province, CN;
Bin Shao, Zhejiang Province, CN;
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory, Zhejiang Province, CN;
Abstract
The present invention relates to a method for preparing a carotenoid oil suspension with low viscosity and high fluidity. The method includes the steps of mixing carotenoid crystals with tetrahydrofuran, heating the resulting mixture to a reflux temperature of about 50˜70° C. under stirring, and filtering-the resulting solution to remove fat-soluble fibers. The resulting filtrate is then condensed to dryness, mixed with a ketone solvent, heated to a reflux temperature of about 60˜80° C., and filtered to remove non-soluble phospholipids. The filtrate obtained is condensed to a residue, and absolute alcohol is added to the residue, and then crystallized under stirring at room temperature. The resulting crystals are filtered and dried to-provide carotenoid crystals. The carotenoid crystals are ground and mixed with plant oils to provide a carotenoid oil suspension with low viscosity and high fluidity, which provides easy filling, for example, into capsules.