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KMID : 0380619890210030387
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Korean Journal of Food Science and Technology
1989 Volume.21 No. 3 p.387 ~ p.390
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Automatic Measurement of Respiration Rate and Weight Loss during Storage of Citrus fruits
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Abstract
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Citrus fruit (Citrus unshiu Marcj were stored in the facillity controlled with a microprocessor based storage controller, and the respiration rate and weight loss of fruits were measured with the infrared gas analyzer and the strain gauge load cell. The storage conditions and measuring intervals were set by the keyboard of personal computer. The interfacing cicuitty between the computer and Z-80 microprocerssor was built with peripheral interfacing IC chips 6821 and 8255. The data measured were saved to a data file for recording and further analysis. When the fresh and bruised fruits were subjected to the storage condition for 4 days at 20℃, the respiration rate of the fresh one showEd a stable value of 3-5m1 CO₂/kg h throughout the storage period while the bruised one exihibited an abruptly increased rate after 50 hours. And the weight loss recorded about 5% during the storage.
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KEYWORD
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