Stakeholder Comments
Responses to comments
9
Make definitions of lutein and lycopene more specific
The lutein definition will indicate hydroxyl groups at the 3 and 3' positions. The
lycopene definition will indicate psi, psi end groups.
Methods specific to xanthophylls or carotenes
Methods that can measure all carotenoids are preferred, but separate methods for the
different carotenoid classes should be considered.
Proposed changes to SMPR
Definitions
10
•
Lutein: a carotenoid containing a β‐ring
hydroxylated at
the 3 position
at one end and an ε‐ring
hydroxylated at
the 3′ position
at the opposite end
.
•
Lycopene: a carotenoid containing no rings at either
end.
with psi‐psi end groups.
