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  • Title: High performance liquid chromatographic determination of provitamin A in orange juice.
    Author: Stewart I.
    Journal: J Assoc Off Anal Chem; 1977 Jan; 60(1):132-6. PubMed ID: 833087.
    Abstract:
    A quantitative method has been developed for the determination of alpha- and beta-carotenes and beta-cryptoxanthin, the provitamin A carotenoids in orange juice. The carotenoids were separated by high performance liquid chromatography on a single column in approximately 30 min. The procedure may also be used to measure zeta-carotene and alpha-cryptoxanthin.
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