บทคัดย่องานวิจัย

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Oxygen concentration effects on ethylene production by ripening banana tissue.

Elyatem, S. M.; Banks, N. H.; Cameron, A. C.;

Postharvest Biology and Technology Year: 1994 Vol: 4 Issue: 4 Pages: 343-351 Ref: 18 ref.

1994

บทคัดย่อ

Oxygen concentration effects on ethylene production by ripening banana tissue.

ABSTRACT :

 

Ethylene production was studied as a function of O2 concentration in tangential slices of pulp tissue from bananas (cv. Robusta) during ripening over 8 days at 20 deg C after initiating ripening with ethylene. The half-saturating O2 concentration for ethylene production remained at 1.7% O2 throughout ripening, even though tissue levels of 1-aminocyclopropane-1-carboxylic acid (ACC) varied substantially during ripening. O2 concentrations within peeled banana pulps averaged 0.52 plus or minus 0.013% less than the surrounding air during ripening. A mathematical model established that the depression of O2 concentration caused by respiratory O2 uptake within tangential slices was unlikely to have exceeded 0.046% O2. The half-saturating O2 concentration for ethylene production in banana pulp tissue had therefore been estimated accurately; it appeared to be independent of tissue ACC levels.