论文信息 - WATER-ABSORPTION CHARACTERISTICS OF VARIOUS PEARL MILLET CULTIVARS AND SORGHUM GROWN IN NORTHERN NIGERIA

WATER-ABSORPTION CHARACTERISTICS OF VARIOUS PEARL MILLET CULTIVARS AND SORGHUM GROWN IN NORTHERN NIGERIA

Ten pearl millet cultivars and one sorghum cultivar were evaluated for physical properties and chemical composition. Water-absorption characteristics of these grains were also determined using Peleg's equation. Results indicated wide variations in thousand-kernel weight and volume, grain hardness, percent floaters, in addition to considerable variations in protein, fat and crude fiber. Peleg's equation gave a reasonable fit to experimental data. Peleg constants K1 were obtained for the pearl millet cultivars. Temperature dependence of the reciprocal of the Peleg constant K1 was determined using an Arrhenius equation. Activation energies were in the range of 1.405–6.572 kJ/mol. A linear relationship was proposed to describe the relationship between the rate of absorbed water per unit change in temperature and activation energy.

[1] M. H. Badau,et al. PHYSICO-CHEMICAL CHARACTERISTICS OF PEARL MILLET CULTIVARS GROWN IN NORTHERN NIGERIA , 2002 .

[2] D. Quast,et al. TEMPERATURE DEPENDENCE OF HYDRATION RATE AND EFFECT OF HYDRATION ON THE COOKING RATE OF DRY LEGUMES , 1977 .

[3] M. Hendrickx,et al. Modelling water diffusion during long-grain rice soaking , 1986 .

[4] J. P. Mittal,et al. WATER ABSORPTION IN CEREAL GRAINS and ITS EFFECT ON THEIR RUPTURE STRESS , 1986 .

[5] M. Hendrickx,et al. Limited multilayer desorption of brown, parboiled rice , 2007 .

[6] M. H. Badau,et al. The use of Peleg's equation to model water absorption in some cereal grains during soaking , 1992 .

[7] M. Peleg. An Empirical Model for the Description of Moisture Sorption Curves , 1988 .

[8] M. Hendrickx,et al. Three-dimensional TLM models for water diffusion in white rice , 1987 .

[9] A. I. Nelson,et al. ILLINOIS PROCESS FOR PREPARATION OF SOYMILK , 1976 .

[10] I. Adeyemi. Dry-milling of sorghum for ogi manufacture , 1983 .

[11] K. H. Hsu. Effect of Temperature on Water Diffusion in Soybean , 1983 .

[12] P. Sopade,et al. Modelling Water Absorption in Soybean, Cowpea and Peanuts at Three Temperatures Using Peleg's Equation , 1990 .