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Moisture Content of Tomato Pastes Determined via Measurements of Thermal Effusivity by Infrared Phothermal Radiometry and Inverse Photopyroelectric Technique

Infrared photothermal radiometry and inverse photopyroelectric method were used to determine thermal effusivity for tomato pastes characterised by a varying dry matter content. Unlike commonly adapted techniques, the two methods used here are reasonably fast and do not require the application of substantial external heat input ; positive correlation between the effusivity and moisture content is high.

tomato; infrared; photothermal; radiometry

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