Motivated by potential health effects [1–6], literature on
natural pigments, especially of carotenoids, is voluminous.
Focusing on the past two years, research in Food
Science in this area generally falls under the following
topics: first, composition and influencing factors, second,
search for rich plant and microbial sources or increasing
the pigment content, third, assessing and improving
stability and bioavailability, fourth, processing effects
and fifth, health effects.