Carotenoids are a class of more than 750 naturally occurring pigments synthesized by plants, algae, and photosynthetic bacteria (1). These richly colored molecules are the sources of the yellow, orange, and red colors of many plants. Fruit and vegetables provide most of the 40 to 50 carotenoids found in the human diet.
Where are carotenoids found in the chloroplast?
The majority of chloroplast carotenoids are localized in the thylakoid membranes for light harvesting and photoprotection (Jahns and Holzwarth, 2012, Niyogi and Truong, 2013, Ruban, 2016).
Are carotenoids only found in plants?
Carotenoids are a class of phytonutrients ("plant chemicals") and are found in the cells of a wide variety of plants, algae and bacteria.
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