Effect of temperature distribution on predicting quality of microwave dehydrated food

Joardder, Mohammad Uzzal Hossain, Karim, Azharul, & Kumar, Chandan (2013) Effect of temperature distribution on predicting quality of microwave dehydrated food. Journal of Mechanical Engineering and Sciences, 5, pp. 562-568.

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During food drying, many other changes occur simultaneously, resulting in an improved overall quality. Among the quality attributes, the structure and its corresponding color influence directly or indirectly other properties of food. In addition, these quality attributes are affected by process conditions, material components and the raw structure of the foodstuff. In this work, the temperature distribution within food materials during microwave drying has been taken into consideration to observe its role in color modification. In order to determine the temperature distribution of microwave-dried food (apple), a thermal imaging camera has been used. The image acquired from the digital camera has been analysed using image J software in order to get the color change of fresh and dried apple. The results show that temperature distribution plays an important role in determining the quality of the food. The thermal imaging camera was deployed to observe the temperature distribution within food materials during drying. It is clearly observed from the higher value of (ERGB =102) and the uneven color change that uneven temperature distribution can influence customer perceptions of the quality of dried food. Simulation of a mathematical model of temperature distribution during microwave drying can make it possible to predict the colour and texture of the microwaved food.

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ID Code: 63080
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Food drying, temperature distribution, texture, colour, quality prediction.
ISSN: 2289-4659
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > FOOD SCIENCES (090800) > Food Processing (090805)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Universiti Malaysia Pahang, Malaysia
Deposited On: 13 Mar 2014 01:43
Last Modified: 15 Mar 2014 04:55

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