Title:
商業的に入手可能なルテインからの希少カロテノイドを製造する方法
Document Type and Number:
Japanese Patent JP4416397
Kind Code:
B2
Abstract:
Disclosed are processes for conversion of (3R,3'R,6'R)-lutein to (3R,6'R)-alpha-cryptoxanthin, (3R)-beta-cryptoxanthin, anhydroluteins I, II, and III (dehydration products of lutein), and a method for separating and purifying the individual carotenoids including the unreacted (3R,3'R)-zeaxanthin. The invention also includes two methods that transform (3R,3'R,6'R)-lutein into (3R,6'R)-alpha-cryptoxanthin in excellent yields.
Inventors:
Cassique Frederick
Application Number:
JP2002516260A
Publication Date:
February 17, 2010
Filing Date:
July 26, 2001
Export Citation:
Assignee:
University of Maryland College Park
International Classes:
C07C403/24; C07C29/04; C07C35/21; C07C45/27
Domestic Patent References:
| JP2000136181A | ||||
| JP8092205A | ||||
| JP55033463A |
Foreign References:
| GB1081104B |
Other References:
Journal of Chromatography B,1995年,670,p.219-233
Journal of the American Chemical Society,1943年,65(10),p.1951-1955
Journal of the American Chemical Society,1943年,65(10),p.1951-1955
Attorney, Agent or Firm:
Hatsushi Shimizu