Effect of Gamma Irradiation on Amino Acids profile, Minerals and Some Vitamins Content in Pigeon Pea (Cajanus Cajan) Flour

2015 ◽  
Vol 5 (1) ◽  
pp. 90-98 ◽  
Author(s):  
O. Bamidele ◽  
C. Akanbi
Author(s):  
IVONE YURIKA MIZUBUTI ◽  
LUIZ WALDEMAR DE OLIVEIRA SOUZA ◽  
OSWALDO BIONDO JÚNIOR ◽  
ELZA IOUKO IDA

Esta pesquisa teve por objetivo investigar as propriedades químicas e cômputo químico dos aminoácidos da farinha e de concentrado protéico de feijão guandu (Cajanus cajan (L.) Millsp). A farinha apresentou composição química adequada em relação a outras leguminosas. O procedimento de extração aquosa de proteína, a partir de grãos de feijão guandu com 25,73% de proteína, permitiu a obtenção de concentrado protéico com 52,47% de proteína, em base seca, compreendendo concentração da ordem de 103,85%. O concentrado protéico de feijão guandu apresentou composição química adequada, sendo que cinzas e açúcares solúveis foram concentrados 122,17 e 21,86%, respectivamente, em relação ao grão. Os níveis de aminoácidos no concentrado protéico foram similares aos de farinha de guandu, porém, a metionina foi concentrada em 42,64%. O cômputo químico indicou que os aminoácidos limitantes primários na farinha e concentrado protéico foram os sulfurados totais. A composição química da farinha e do concentrado protéico de guandu indicou potencialidade para utilização de ambos como componentes de alimentos para seres humanos e animais. Abstract The aim of this work was the investigation of the chemical properties of Pigeon pea (Cajanus cajan) (L.) Millsp) flour and protein concentrate. The flour presented suitable chemical composition in comparison to other legumes. The water extraction procedure of protein, from Pigeon pea grains with 25,73% of protein allowed to obtain a protein concentrate with 52,47% of protein in dry basis, resulting an increase in order of 103,85%. The protein concentrate of Pigeon pea showed suitable chemical composition, having an increase of 122,17% in ashes and 21,86 % in soluble sugars in relation to the crude grain. The amino acids levels in the concentrate were similar to those in the flour, however there were an increase of 42,64% in methionine concentration. The chemical score suggest that the primary limiting amino acids in the flour and in the concentrate were the total sulphur amino acids. The chemical composition of the flour and concentrate of Pigeon pea showed perspectives of its utilization as feed components for humans and animals.


Author(s):  
D. P. Kachare ◽  
R. D. Satbhai ◽  
D. B. Rathod ◽  
R. M. Naik

An experiment was conducted for evaluation of proximate composition of 25 pigeon pea genotypes (Cajanus cajan L.)”differing in colour. The analysis revealed significant differences in the content of moisture (7.04-12.09%); crude protein (17.62- 25.45%); crude fat (1.41-2.93%); carbohydrate, (49.68-60.48) and ash (3.05-5.00%). Limiting amino acids viz tryptophan and methionine were ranged from 0.56-1.03 and 0.70-1.16 g/16g N respectively. The genotype PT-012-16 was found to be high in protein (25.45%), whereas the genotype PT-04-391 recorded the highest fat (2.93%). The higher tryptophan was observed in genotype PT-012-26 (1.03 g/16g N) whereas highest methionine content was recorded in PT-012-6 (1.16 g/16g N). All genotypes under study were found to be deficient in both the limiting amino acids tryptophan and methionine when compared with the WHO/FAO reference standard. This study revealed that the genotypes PT-012-9, PT-012-16 and PT-012-23 were found to be promising for future breeding programme for nutritional quality improvement.


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