Decay Rate Kinetics of Ozone Gas in Rice Grains |
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| Authors: | Pandiselvam Ravi Thirupathi Venkatachalam Meenatchi Rajamani |
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| Affiliation: | 1. Department of Food and Agricultural Process Engineering, Tamil Nadu Agricultural University, Coimbatore 641 003, India;2. Department of Primary Processing, Storage and Handling, Indian Institute of Crop Processing Technology, Thanjavur 613 005, India |
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| Abstract: | The present study was carried out to evaluate the effects of ozone on rice grains for the following three conditions: saturation time, decay rate, and half-life of ozone. Experiments were performed in different bed thicknesses (5 and 10 cm) and moisture content (11.4 and 14.2% wb) at atmospheric conditions. The lowest saturation time of ozone was 119 min, with the concentration of 516 ppm for rice grains ozonated at 5-cm bed thickness with 11.4% (wb) moisture content. The decay rate kinetics of ozone obtained were consistent with a first-order model. Regarding the half-life of ozone, the lowest value obtained was 6.78 min for rice grains ozonated at 10-cm bed thickness with 14.2% (wb) moisture content. |
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| Keywords: | Ozone Decay rate Fumigation Half-life Kinetics Rice Saturation Time |
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