Abstract
ABSTRACT Carotenoid pigments are widely used as feed additives in the poultry sector and in salmonid and crustacean aquaculture. In these applications the egg, skin or flesh of the target species are pigmented in order to improve marketability. The poultry feed producer is able to source these carotenoids (or indeed, xanthophylls) either from chemical synthesis or from processed plant materials. This study examined the ecological impact of the application of chemically synthesized pigments and their plant-derived counterparts. A cradle-to-grave assessment, studying all aspects of the production chain, revealed that the products derived through synthetic chemistry had the least impact on the environment.
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