Journal of Food, Agriculture and Environment

Vol 5, Issue 2,2007
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Temperature effect on drying kinetics of ‘Gigante de Valinhos’ figs


H. C. Pacco 1, C. Vigneault 1, 2*, L. R. de Castro 3, F. C. Menegalli 3, L. A. B. Cortez 1

Recieved Date: 2007-01-04, Accepted Date: 2007-03-28


The drying kinetics of bleached skinless figs was studied under different operating conditions. The samples were subjected to three air temperatures (45, 60 and 75ºC) at a constant air velocity of 1 m s-1. The process efficiency was analyzed on the basis of moisture content and in relation to water activity, apparent density, shrinkage coefficient and color. As expected, the final moisture contents varied from 1.9 to 0.03% as the temperature of the air that was used increased and as the relative humidity decreased. The apparent density increased from 1.025 to 1.186 g mL-1 during the drying process and was linearly related to the volume, as the volume decreased the apparent density increased. The final volume of the produce was 7.8 times smaller than the initial volume. A linear shrinking coefficient of 0.8779 was obtained, revealing that the dimensionless volume decreased faster than the dimensionless moisture content. Minor color changes were observed when figs were dehydrated at 60ºC, the temperature that provided the best drying conditions with respect to maintenance of produce quality.


Ficus carica L., shrinkage, color, drying, fig, kinetic

Journal: Journal of Food, Agriculture and Environment
Year: 2007
Volume: 5
Issue: 2
Category: Food and Health
Pages: 70-75

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :