Importance of cis-isomer separation in determining provitamin A in tomato and tomato products
โ Scribed by Delia B. Rodriguez-Amaya; Cassia A. Tavares
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 463 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0308-8146
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๐ SIMILAR VOLUMES
The usual methods for provitamin A evaluation of foods convert the total pigment amount, determined spectrophotometrically, into vitamin A units. Since the totally inactive lycopene is the major carotenoid in the tomato, such readings result in erroneously high provitamin A values. In view of the r
## Abstract An effective chiral analytical method was developed for the resolution and determination of dinotefuran enantiomers in rice, tomato and apple samples. Dinotefuran enantiomers were baselineโseparated and determined on a novel chiral column, ChromegaChiral CCA, with __n__โhexaneโethanolโm