Non Factorial Simple Random Sampling Experimental Design was used
for experiment and then ANOVA and DMRT 5% of SPSS statistical package programs were employed to analyze
the experimental data. The result of experiments indicated that some engineering properties varied among the
beans from different colors of coffee cherries. The length, frontal area, weight of 1000 beans, porosity, density and
true density of beans processed from green cherries, and weight of 1000 beans and angle of repose of beans
produced from deep red cherries were significantly different from those of beans resulted from the other cherries.
This finding suggested that the first 6 and the second 2 engineering properties might be elaborated to separate
respectively coffee beans of green cherries and coffee beans of deep red cherries, from the other beans.
Non Factorial Simple Random Sampling Experimental Design was usedfor experiment and then ANOVA and DMRT 5% of SPSS statistical package programs were employed to analyzethe experimental data. The result of experiments indicated that some engineering properties varied among thebeans from different colors of coffee cherries. The length, frontal area, weight of 1000 beans, porosity, density andtrue density of beans processed from green cherries, and weight of 1000 beans and angle of repose of beansproduced from deep red cherries were significantly different from those of beans resulted from the other cherries.This finding suggested that the first 6 and the second 2 engineering properties might be elaborated to separaterespectively coffee beans of green cherries and coffee beans of deep red cherries, from the other beans.
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