Abstract

BAWAB, María Bernarda Alvarado. Study of the stramberry drying process using microwave dryer. Prospect. [online]. 2017, vol.15, n.1, pp.29-34. ISSN 1692-8261.  https://doi.org/10.15665/rp.v15i1.658.

This research evaluated the drying process and performance in a microwave oven with 10kW of power at 2,45GHz using strawberry for experiments. The oven consists of four units composed of 4 magnetrons each that turn on and off in an automated way to maintain the desired power in the drying chamber; in each one of the experiments was processed 1kg of sample placed on an aluminum tray. during the process the weight loss, the real-time temperature was measured with five infrared thermometers installed inside the drying chamber, the energy consumption and the environmental conditions of temperature and relative humidity. The treated samples had a moisture content of about 90% and it was possible to remove 85% of the weight during the process, assuming that the other strawberry compounds did not vary. It was found that yields of 0.45 kg/kWh can be achieved during the first 15 minutes of processing reaching temperatures around 335K and removing 60% of the contained moisture.

Keywords : Strawberry; Dry; Microwave; Moisture; Energy; Yield.

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