Citranaxanthin is a carotenoid pigment used as a food additive under the E number E161i as a food coloring. There are natural sources of citranaxanthin, but it is generally prepared synthetically.Citranaxanthin , Food and Agriculture Organization of the United Nations It is used as an animal feed additive to impart a yellow color to chicken fat and egg yolks.Citranaxanthin, International Programme on Chemical Safety
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