Carotenoids are major pigments of ripening Citrus fruit. Both content and composition of carotenoids affect fruit color and nutritional value. Studies on carotenoid metabolism of Citrus have been done at the molecular level. Based on the outcome of scientific researches reported recently, the method of fruit color measurement, identification and quantification of carotenoids, biosynthetic pathway of carorenoids and expression of carotenoid biosynthetic genes during fruit maturation will be introd...
