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Year : 2015  |  Volume : 4  |  Issue : 1  |  Page : 1-7

The nutritive value of two sorghum cultivar

1 Department of clinical nutrition, college of Applied medical science, University of Hail, Kingdom of Sudia Arabia
2 Food Research Centre, Shambat, Sudan
3 Department of Home Domestic, Faculty of Science and Home Domestic, King Khalid University, Kingdom of Sudia Arabia
4 Department of Biology, Faculty of Science, University of Hail, Kingdom of Saudi Arabia
5 Department of Food science and technology faculty of agriculture, university of Khartoum, Sudan

Correspondence Address:
Amir M Awadelkareem
Department of clinical nutrition, college of Applied medical science, University of Hail
Kingdom of Sudia Arabia
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Source of Support: None, Conflict of Interest: None

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The study was conducted to investigate chemical composition, protein fractions, mineral profile, tannin content, in vitro protein digestibility, and amino acids content of two Sudanese sorghum cultivar (namely feterita and dabar). Chemical composition of the two sorghum cultivars was determined. Feterita cultivar showed significantly (p<0.05) high moisture, ash, protein, fiber, and fat while dabar cultivar was significantly higher (P<0.05) in carbohydrate contents. The proteins in sorghum were classified into five fractions based on their solubility in different solutions. Feterita showed significantly (p<0.05) high globulin and glutelin contents while dabar showed significantly (p<0.05) high albumin and residual content. Prolamin (kafirins) represented a considerably greater fraction in both cultivars. Cupper, calcium, iron, phosphorus, potassium, and sodium were determined for the two cultivars. Results revealed that, feterita was significantly higher (P<0.05) in cupper, iron, and sodium while dabar was significantly higher (P<0.05) in phosphorus, calcium and potassium content. Tannin content in feterita was significantly (P<0.05) higher compared to dabar. Regarding in vitro protein digestibility (IVPD), dabar (non-tannin) significantly (P<0.05) high IVPD compared to feterita (tannin).Inverse relationship was detected between tannin content and IVPD for both cultivars. The essential amino acids content results of both cultivar showed that dabar had the higest amount of threonine, metheonine, valine, tyrosine, and lysine, respectively. While Feterita had the highest amount of isoleucine, leucine, and phenylalanine. Amino acid analysis revealed that both sorghum cultivars protein is rich in glutamic acid, leucien, alanine, and proline, but deficient in lysine similar to other cereal.

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