title: Nutritional evaluation of some commercial wheat varieties grown in Pakistan.
abstract: The nutritive value of some commercial wheat varieties grown in Pakistan was measured chemically, including amino acid analysis, and biologically in N-balance experiments with growing rats. The protein content ranged from 13.2% in Punjab-83 to 16% in Barani-83. Lysine per 100 g protein varied between 2.46 and 2.75%. The available carbohydrate ranged from 67.3 to 74.7%. Iron content was highest in Sonalika while the concentration of zinc and manganese was highest in Sarhad-82. The protein digestibility (TD), biological value (BV) and net protein utilisation (NPU) varied between 92-95%, 56-68% and 53-65% respectively. Level of wheat protein was negatively correlated with available carbohydrate (r = -0.93), lysine per unit protein (r = -0.67) and BV(r = -0.76). The lysine content (g/16gN) of commercial wheat varieties showed a positive correlation (r = +0.95) with the BV. The protein quality was lowered in varieties having higher content of protein.
authors.affiliation: Food Technology Research Laboratories, National Agricultural Research Centre, Islamabad, Pakistan.
authors.forename: M A
authors.initials: MA
authors.lastname: Khan
authors.forename: I A
authors.initials: IA
authors.lastname: Rana
authors.forename: I
authors.initials: I
authors.lastname: Ullah
mesh_terms: D000383:Agriculture; D000596:Amino Acids / Q000032:analysis; D008239:Lysine / Q000032:analysis; D010154:Pakistan; D014908:Triticum / Q000032:analysis*
chemical_list: D000596:Amino Acids; D008239:Lysine