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Elevated carotenoids in staple crops: The biosynthesis, challenges and measures for target delivery

A. Badejo

Published 2018 in Journal of Genetic Engineering and Biotechnology

ABSTRACT

Poverty eradication and global food security are among the targets of world leaders, most especially combating the scourge of hidden hunger. Provitamin A carotenoids cannot be synthesized de novo by human and so it must be taken as part of the diet. The deficiency of which is causing almost 6000 sights to be lost daily in most developing countries because of the monotonous starchy diets lacking substantial amount of carotenoid. Conventional breeding as well as genetic engineering have been used to increase the level of carotenoid in many staples including rice, potato, maize and cassava. While products from genetic engineering are still been subjected to strict regulatory measures preventing the delivery of the products to target consumers, some of the products from conventional breeding are already on the table of consumers. Interestingly, both technologies are crucial to tackling micronutrient deficiencies. This review discusses the role of carotenoid in human, the biosynthesis in plant and some of the staple crops that have been modified for increased carotenoid. Some measures expected of the leaders of the countries in need of these products for safe delivery to the target population after two decades is also highlighted.

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