Table II. Major products in β-carotene-accumulating E. coli with individually expressed hydroxylases

Values are expressed as a percentage of total carotenoids. Each value is the mean of three replicates ± sd. ND, Not detectable.

HydroxylaseZeaxanthinβ-Cryptoxanthin
CYP97A411.08 ± 1.2126.19 ± 0.53
CYP97C2ND0.78 ± 0.12
HYD429.34 ± 3.8624.14 ± 1.92
Empty vector controlNDND