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- Title
Isomerization of β-carotene by titanium tetrachloride catalyst.
- Authors
Rajendran, V.; Chen, B. H.
- Abstract
Isomerization of all-trans-ß-carotene occurs during shaking with 0⋅5% of titanium tetrachloride catalyst in methylene chloride at room temperature. In the present study we compared two types of columns C18 and C30 and various solvent systems for the separation of ß-carotene and its cis isomers by high performance liquid chromatography (HPLC). Results showed that ß-carotene isomers were resolved by employing a C30 column with a mobile phase of methanol (100%) (A) and methylene chloride (100%) (B) under a gradient elution condition. A total of eleven cis isomers and one all-trans-ß-carotene isomer were resolved within 50 min at a flow rate of 1 ml/min and detection wave-length of 470 nm.
- Subjects
ISOMERIZATION; CAROTENES; CATALYSTS; TITANIUM tetrachloride; DICHLOROMETHANE; METHANOL; LIQUID chromatography
- Publication
Journal of Chemical Sciences, 2007, Vol 119, Issue 3, p253
- ISSN
0974-3626
- Publication type
Article
- DOI
10.1007/s12039-007-0033-5