HOT AIR DRYING OF COCONUT SLICES
The aim of this research was to determine the influence of the process parameters and pretreatment methods on the quality and drying kinetics of coconut slices.The coconut slices were dried in a hot air drier at different temperatures (40,50,60 and 700C),various air velocities of (1.1,1.5 and 1.9 m/s),pre-treatment methods (blanching using steam,boiling water,hot water at 850C,microwave,and ultrasound treatment).Moisture content,water activity,protein content,free fat content and acid value (free fatty acids) were determined.The drying rate curves for coconut slices mainly shows the falling rate period.Among twelve selected models,Approximation of diffusion model could predict changes in moisture content accurately.The best results were achieved when the samples were pretreated with boiling water.
hot air drying coconut slices drying kinetics thin layer drying blanching
S.P.Shingare B.N.Thorat
Advanced Drying Laboratory,Department of Chemical Engineering,Institute of Chemical Technology Matunga(E),Mumbai-400019,India
国际会议
The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))
厦门
英文
1-8
2012-01-11(万方平台首次上网日期,不代表论文的发表时间)