Experimental study and modelling of drying kinetics of peppermint tea (Mentha piperita) treated by thermal and biochemical treatment

3^rd International conference on Bioprocess and Biosystems Engineering

September 14-15, 2015 Baltimore, USA

M Mahrouz, H Machhour, A Idlimam, M Barakate and M Kouhila

Cadi Ayyad University, Morocco

Posters-Accepted Abstracts: J Bioproces Biotechniq

Abstract :

The objective of this work is to study the solar drying kinetics of two different samples of peppermint tea: Peppermint washed with water and peppermint treated by citric acid solution (2.5 g/l) which is a natural conservation agent. The experiments were conducted in real conditions. We aim to present an experimental approach of the drying kinetics on a thin layer of peppermint tea. For this purpose, the behavior of this drug has been studied at temperature of 80�°C and at drying air velocities of 200 m3.h-1. An indirect forced convective solar dryer in continuous regime was used. Ten mathematical models have been used for describing the drying curves. The Wang and Singh models showed the best fitting of experimental data of treated peppermint tea with citric acid solution and diffusion approach model is the best to describe the drying curves of peppermint tea (control) washed with distilled water.

Biography :

Email: aidlimam@gmail.com