บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Role of skin resistance to gas diffusion in the response of fruits to modified atmospheres.

Dadzie, B. K., Banks, N. H., Cleland, D. J. and Hewett, E. W.

Acta Horticulturae Year: 1993 Issue: No. 343 Pages: 129-134 Ref: 15 ref.

1993

บทคัดย่อ

Role of skin resistance to gas diffusion in the response of fruits to modified atmospheres.

Internal atmospheres of fruits are always different in composition from their external atmospheres; fruits may be considered as modified atmosphere packages within which their tissues are held. The internal anaerobic compensation point for tissues within a fruit (ACPi) therefore differs from the anaerobic compensation point (ACPe) for the atmosphere external to the fruit. In this paper, it is assumed that ACPi is unaffected by fruit temperature or respiration rate and a steady state mathematical model is used to quantify the likely impact of temperature on ACPe for a fruit crop like apples. The results indicate that, even if temperature has no effect on ACPi, the strong dependence of respiration rate upon temperature would make ACPe vary with temperature, particularly for fruits with surface resistance to O2 diffusion (RO2). Therefore, the lowest O2 level to which a given crop may be safely exposed is not constant but is temperature dependent, to an extent which would vary with its RO2 and its respiratory quotient.