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OXALACETATE SYNTHESIS IN APPLES AND BANANAS AT LOW TEMPERATURES
Author(s) -
Whitaker John R.,
WILLS R. B. H.,
SCRIVEN F. M.
Publication year - 1978
Publication title -
journal of food biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 47
eISSN - 1745-4514
pISSN - 0145-8884
DOI - 10.1111/j.1745-4514.1978.tb00182.x
Subject(s) - respiration , horticulture , chemistry , respiration rate , botany , food science , biology
14 CO 2 was applied to apples and bananas that were stored at various temperatures and the incorporation of 14 C into oxalacetate was determined. Apples that were susceptible to internal breakdown showed an initial decrease in incorporation as the storage temperature was reduced but incorporation then increased at temperatures below 10°C (Jonathan) or 5°C (Twenty Ounce). Apples that were not susceptible to breakdown (Delicious and Granny Smith) showed no incorporation at any temperature. Green bananas showed a minimum incorporation at 10°C but in ripe bananas, incorporation markedly increased at all temperatures less than 20°C. The respiration rate of the apple varieties at 20°C was found to be higher in fruit that were more susceptible to breakdown whereas at O°C the higher rates of respiration were from fruit less susceptible to the disorder.