the effect of drying kinetic on shrinkage of potato slices

Authors

negar hafezi

mohammad javad sheikhdavoodi

seyed majid sajadiye

abstract

objective: potato is the fourth important food crop after wheat, rice and maize. shrinkage  of  food  materials  has  a negative  consequence  on  the  quality  of  the dehydrated product. the main objective pursued in this paper is to investigate the shrinkage amount of potato slices during drying process using vacuum-infrared method. methods: in this work, the effect of the infrared radiation powers (100, 150 and 200 watt) and absolute pressure levels (20, 80, 140, 760 mmhg) at different thickness (1, 2 and 3 mm) on bulk volumetric shrinkage were investigated. results: data analysis showed that shrinkage percentage decreased with decrease of sample thickness and increase of infrared power. it was found that either thickness or infrared power had any significant effects (p < 0.01) on shrinkage of potato slices in this drying system. the regression model is a three-variable linear that coefficient of determination is 0.532 and implies that the model can explain 53.2 % of the volume ratio changes

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The Effect of Drying Kinetic on Shrinkage of Potato Slices

Objective: Potato is the fourth important food crop after wheat, rice and maize. Shrinkage  of  food  materials  has  a negative  consequence  on  the  quality  of  the dehydrated product. The main objective pursued in this paper is to investigate the shrinkage amount of potato slices during drying process using vacuum-infrared method. Methods: In this work, the effect of the infrared radiation...

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The Effect of Drying Kinetic on Shrinkage of Potato Slices

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Journal title:
international journal of advanced biological and biomedical research

Publisher: casrp publishing company

ISSN 2383-2762

volume 2

issue 11 2014

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