000			03289nab a22003737a 4500
001			G90972
003			MX-TxCIM
005			20230825182929.0
008			210804t2009 ts |||p|op||| 00| 0 eng d
022			_a2212-7984
022			_a1876-1429 (Online)
024	8		_ahttps://doi.org/10.2174/2212798410901010032
040			_aMX-TxCIM
041			_aeng
090			_aCIS-5390
100	1		_aNassar, N.M.A. _9620
245	1	0	_aImproving carotenoids and amino-acids in Cassava
260			_aUnited Arab Emirates : _bBentham Science Publishers, _c2009.
340			_aComputer File|Printed
500			_aPeer review
500			_aPeer-review: No - Open Access: No
520			_aMore 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. Carotenoid content could be improved in cassava edible roots by selecting cultivars rich in carotenoids. In Brazil, the center of cassava origin, cassava landraces have acquired through their domestication a large diversity in relation to many economic traits such as high content of carotenoids and excellent palatability among other characters. One of these clones, which has been grown by indigenous farmers in Brazil and available at the University of Brasília genebank, showed a high level of lycopene content (5 mg/kg viz. a viz. zero in common cultivars, and 12-20 mg/kg in tomato-a lycopene-rich vegetable). The cassava landrace UnB 400 had a high content of ß-carotene (up to 4 mg/kg). This article also discusses relevant patents to the main subject of this research.
546			_aText in English
650		7	_aBiofortification _91731 _2AGROVOC
650		7	_aGenetic resources _91127 _2AGROVOC
650		7	_aLycopene _911812 _2AGROVOC
650		7	_aManihot _915998 _2AGROVOC
700	1		_aJunior, O.P. _921825
700	1		_aSousa, M.V. _921826
700	1		_aOrtiz, R. _9244
773	0		_tRecent Patents on Food, Nutrition and Agriculture _n635346 _gv. 1, no. 1, p. 32-38 _dUnited Arab Emirates : Bentham Science Publishers, 2009. _x2212-7984
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/299
942			_cJA _2ddc _n0
999			_c27195 _d27195