บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Modelling the relation between ethylene production rate, respiration rate and their influence on climacteric and non-climacteric fruits

F. Devlieghere, L. Jacxsens, M. Serna Tatay, J. Debevere, J. Meirlaen, P. Vanrolleghem

ISHS Acta Horticulturae 600: 647-651.

2003

บทคัดย่อ

Modelling the relation between ethylene production rate, respiration rate and their influence on climacteric and non-climacteric fruits

Ethylene affects the metabolism of fruits o­n different levels. The definition of a closed packaging system for fruits includes the determination of the required O2-permeability, CO2-permeability and ethylene permeability/ethylene adsorption rate of the packaging film. Consequently, to package a certain type of fruit in a specific package configuration, the relation between the ethylene production rate (at the optimal ripeness stage for packaging) and the respiration rate, with changing O2 concentration, has to be established. For this purpose the Michaelis-Menten type model, describing the influence of O2 o­n the respiration rate, was extended with an extra equation for the ethylene production rate. Experimental data o­n gas exchange were analysed using WEST (Hemmis N.V., Kortrijk, Belgium) modelling and simulation software. A clear linear relation was found between the ethylene production rate and the respiration rate (R² ranging from 0.8 to 1). It is, in our knowledge, the first time that such a relation was described. Moreover, analysis from the data revealed that for most investigated ethylene producing fruits, the ethylene production rate reached zero before aerobic respiration was stopped. The proposed model was made for commercially mature avocado, banana, mango, kiwi, nectarine, strawberry, raspberry, white grape and red currant fruit and illustrated with data of banana, nectarine, raspberry, avocado and kiwi fruit.