Improving carotenoids and amino-acids in cassava

Recent Patents on Food, Nutrition & Agriculture
Nagib M A NassarRodomiro Ortiz

Abstract

More than 800 million people in tropics and sub tropics use cassava as food. However, its roots are poor in protein content (0.7-2%). Amino acids such as lysine and methionine are also low, and some research reports indicate the absence of methionine in cassava edible roots. By inter-specific hybridization it was possible to increase true protein in cassava roots measured by amino acid contents. The amino acid profiles of a common cassava cultivar and an inter-specific hybrid, namely ICB 300, were determined using the computerized amino acid analyzer Hitachi L-8500. The inter-specific hybrid has 10-fold lysine and 3-fold methionine than common cassava cultivar: lysine content was 0.010 g per 100 g in the common cassava cultivar while it reached 0.098 in the inter-specific hybrid. Methionine in the common cassava cultivar was 0.014 g per 100 g whereas it reached 0.041 g per 100 g in the inter-specific hybrid. Total amino acid content in the common cassava cultivar was 0.254 g per 100 g viz. a viz. 1.664 g per 100 g in the inter-specific hybrid. The genetic variability of the profile and quantity of amino acids indicate the feasibility of selecting inter-specific hybrids that are rich in both crude protein and amino acids. Carote...Continue Reading

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