PROCESS FOR SIMULTANEOUS EXTRACTION AND SEPARATION OF ESTERIFIED AND UNESTERIFIED MONOHYDROXYCAROTENOIDS
申请人:University of Maryland, College Park
公开号:EP2996470A1
公开(公告)日:2016-03-23
[EN] PROCESS FOR SIMULTANEOUS EXTRACTION AND SEPARATION OF ESTERIFIED AND UNESTERIFIED MONOHYDROXYCAROTENOIDS<br/>[FR] PROCÉDÉ D'EXTRACTION ET DE SÉPARATION SIMULTANÉES DE MONOHYDROXYCAROTÉNOÏDES ESTÉRIFIÉS ET NON ESTÉRIFIES US14/038353
申请人:UNIV MARYLAND
公开号:WO2014186680A1
公开(公告)日:2014-11-20
The present invention is in the field of organic and natural product chemistry. The present invention relates to an efficient process for purification, simultaneous extraction, and separation of monohydroxycarotenoids from dihydroxycarotenoids in various natural products or in synthetic mixtures. Similarly, the process can also be applied to the simultaneous extraction, saponification, and separation of esterified mono- and dihydroxycarotenoids in natural products and their oleoresins or in their synthetic mixtures. Therefore, esterified and unesterified monohydroxycarotenoids such as (3R)-β-cryptoxanthin and (3R, 6'R)-α-cryptoxanthin can be efficiently separated from their corresponding dihydroxycarotenoids such as (3R, 3 'R, 6 'R)-lutein and (3R, 3 'R)-zeaxanthin that are found in various plants or in synthetic mixtures.
Carotinoidsynthesen XXIV. Weitere Umsetzungen von ?- und ?-Carotin mit Bromsuccinimid
作者:R. Entschel、P. Karrer
DOI:10.1002/hlca.19580410410
日期:——
Das bei der Einwirkung von Bromsuccinimid (NBS) auf β-Carotin entstehende unbeständige Monobrom-β-carotin wurde, allerdings nicht rein, isoliert und zu Retro-dehydro-carotin, 4-Hydroxy-β-carotin und 4-Äthoxy-β-carotin umgesetzt.