AOAC SPDS Mid Year 2016

2. Zeaxanthin

o β,β‐Carotene‐3,3'‐diol; dietary o Zeaxanthin differs from lutein only by placement of  single double bond. o Commercial and supplemental roles • Also accumulates in human retina; predominates in macula  lutea • Reportedly rescues AMD • Colors white egg yolks yellow • Colorant (E161h) o Structure

o Proposed daily dose: 2 mg

3. β-Cryptoxanthin

o (3R,3’R,6’R)‐β,ε‐Carotene‐3,3’‐diol; dietary o Commercial and supplemental roles • Provitamin in humans; converted to vitamin A • Possible antioxidative DNA protection, bone health,  others • Colorant (E161c) in Australia and New Zealand; not in US  or EU o Structure

o Proposed daily dose: 4 mg