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Articles by Divine Nde Bup
Total Records ( 2 ) for Divine Nde Bup
  Divine Nde Bup , Charles Fon Abi , Dzudie Tenin , Cesar Kapseu , Clerge Tchiegang and Zephirin Mouloungui
  An indirect solar dryer was tested for drying sheanut kernels. The influence of tray distance from heat source, airspeed and particle size on drying kinetics was investigated. Optimum drying air parameters obtained in the dryer were airspeeds of 1 and 1.4 m sec-1 and a temperature of 40-45°C. Sheanut kernel slices dried entirely in the falling rate period. Drying rate decreased with increase in particle size. The effect of particle size on the drying rate suggested that the drying process was controlled by internal mass transfer. Drying kinetics was modeled with characteristic drying curve and diffusive models. Effective moisture diffusivities of sheanut kernel slices calculated without shrinkage were greater than those calculated with the incorporation of shrinkage by a value of about 50%. Acid and peroxide values indicated that butter from the dryer could be classified either as category 1 or 2 irrespective of the drying conditions to which the kernels were subjected.
  Divine Nde Bup , Charles Fon Abi , Dzudie Tenin , Cesar Kapseu , Clerge Tchiegang and Zephirin Mouloungui
  The shea tree produce sheanut kernels from which shea butter is extracted. The average dimensions of the kernels are 4 cm in length and 3 cm by width. Due to its big size (4x3 cm), natural sun drying of kernels is not. Drying tests carried out in an empty indirect solar dryer, gave temperatures above 60C but were reduced to about 50-55C when loaded. At airspeeds of 1 and 1.4 m sec-1 there was no significant difference in the moisture contents of the samples on the different trays. The acid and peroxide values of the butter indicated that butter obtained from the dried kernels could be classified either as category 1 or 2 butter irrespective of the drying conditions to which the kernels were subjected. Hence, the indirect solar dryer can be used to produce butter of recommended properties for cosmetics, pharmaceuticals and in food.
 
 
 
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