Skip navigation
Please use this identifier to cite or link to this item:
Title: Optimization of microwave-vacuum drying of pomegranate arils
Authors: Dak M.
Jain, Manoj Kumar
Jat S.L.
Published in: Journal of Food Measurement and Characterization
Abstract: Pomegranate arils (Punica granatum L.) were dried in a microwave-vacuum drier up to a final moisture content of around 5–6 % (d.b.). The effect of microwave power level (25–95 W), vacuum pressure (25–195 mm Hg) and sample mass (65–235 g) on drying efficiency and some quality attributes (color, texture, rehydration ratio and sensory score) of dried pomegranate arils were analyzed by means of response surface methodology. A rotatable central composite design was used to develop models for the responses. Analysis of variance showed that a second order polynomial model predicted well the experimented data. All three process parameters microwave power, vacuum pressure and sample mass strongly affected quality attributes of dried pomegranate arils and drying efficiency. A lower vacuum pressure during drying resulted in better quality products. Optimum drying conditions of microwave power level of 80 W, vacuum pressure of 60 mm Hg and sample mass of 193.7 g were established for microwave-vacuum drying of pomegranate arils. Separate validation experiment was conducted at the derived optimum conditions to verify the predictions and adequacy of the models. © 2014, Springer Science+Business Media New York.
Citation: Journal of Food Measurement and Characterization (2014), 8(4): 398-411
Issue Date: 2014
Publisher: Springer Verlag
Keywords: Drying efficiency
Microwave-vacuum drying
Pomegranate arils
Quality attributes
Response surface methodology
ISSN: 21934126
Author Scopus IDs: 13102819200
Author Affiliations: Dak, M., Division of Post Harvest Technology, Indian Agricultural Research Institute, New Delhi, 110012, India, 247, Hiran Magri, Sector-4, Udaipur, Rajasthan, India
Jain, M.K., Department of Computer Science, M.L. Sukhadia University, Udaipur, Rajasthan 313001, India
Jat, S.L., Directorate of Maize Research, New Delhi, 110012, India
Corresponding Author: Dak, M.247, Hiran Magri, Sector-4, India
Appears in Collections:Journal Publications [HY]

Files in This Item:
There are no files associated with this item.
Show full item record

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.