Table III. Major products in α- and β-carotene-accumulating E. coli with coexpressed hydroxylases

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

HydroxylaseLuteinZeaxanthinα-CryptoxanthinZeinoxanthinβ-Cryptoxanthin
CYP97A4 + CYP97C228.99 ± 2.902.98 ± 0.44ND7.86 ± 1.2813.32 ± 1.90
HYD4 + CYP97C21.58 ± 0.143.16 ± 0.13ND3.49 ± 0.4717.93 ± 1.57
Empty vector controlNDNDNDNDND