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Soares A. G., Trugo L. C., Botrel N., Souza da S. L. F., “Reduction of internal browning of pineapple fruit (Ananas comusus L.) by preharvest soil application of potassium,” Postharvest Biology and Technology, 35 201-207, (2005).

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Article

Effect of Thermal Process and Drying Principle on Color Loss of Pineapple Slices

1Laboratory of Energetic, Drying and Thermal Process, ENSAI, Ngaoundere, Cameroun

2CIRAD UMR QualiSud, TA 40/15 73, rue J.F. Breton, Montpellier, Cedex 5, France


American Journal of Food Science and Technology. 2014, Vol. 2 No. 1, 17-20
DOI: 10.12691/ajfst-2-1-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
Edoun Marcel, Kuitche Alexis, Giroux François. Effect of Thermal Process and Drying Principle on Color Loss of Pineapple Slices. American Journal of Food Science and Technology. 2014; 2(1):17-20. doi: 10.12691/ajfst-2-1-3.

Correspondence to: Edoun  Marcel, Laboratory of Energetic, Drying and Thermal Process, ENSAI, Ngaoundere, Cameroun. Email: edounmarcel@yahoo.fr

Abstract

This study is a contribution to knowledge the color loss of pineapple slices during hot air drying process. The kinetics of color degradation of pineapple (Ananas cosmosus) slices were investigated at 40-60°C and at two drying principles: parallel airflow and traversing airflow. Those temperatures are in the range used to dry the commercial pineapple in tropical humid zone. Color changes associated with heat-treated slice were monitored using Hunter colorimeter (L, a, b, total color difference ΔE). The results showed that temperature had a significant effect on the color loss of pineapple slice during the process. At 60°C the color loss is less perceptible. The parallel flow drying process permits us to obtain high color quality during thermal process.

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