Measurement of Gas Components in the Low Pressure Storage Chambers

Abstract

Making use of tomatoes and melons, gas components in the low pressure storage chambers were analyzed using a gas sampling implement newly designed and a gas tight syringe. The O₂, CO₂, N₂ and C₂H₄ gases were analyzed by a gas-chromatograph. On the basis of analytical values, CO₂ gas concentrations were calculated for both vegetables. Under the low pressure, the respiratory ratios of tomatoes and melons were 1/30-1/40 and 1/20, respectively, in comparison with those under the normal pressure. In view of these results, it was evident that controlled respiration of the vegetables was effectively realized in the low pressure storage chambers.