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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Kinetics of L-Ascorbic Acid Degradation in Pineapple Drying under Ethanolic Atmosphere

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Author(s):
Santos, P. H. S. [1] ; Silva, M. A. [1]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, Sch Chem Engn, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Drying Technology; v. 27, n. 9, p. 947-954, 2009.
Web of Science Citations: 15
Abstract

The kinetics of L-ascorbic acid degradation during drying of pineapple in normal and modified atmosphere was studied. Drying experiments were carried out in a tunnel dryer at two drying temperatures and air velocities. The drying atmosphere was modified by the addition of ethanol (0.5%v/v). The presence of ethanol in the drying atmosphere promoted a more intense water evaporation compared to the conventional process. Although the L-ascorbic acid degradation rate during the pineapple drying (final moisture content of 27% wet basis) under ethanolic atmosphere was higher, these samples retained higher amounts of L-ascorbic acid. Moreover, the Weibull model was applied to fit the kinetics data. (AU)