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Effects of irradiation on respiration and ethylene production of apple slices
Author(s) -
Gunes Gurbuz,
Watkins Christopher B,
Hotchkiss Joseph H
Publication year - 2000
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/1097-0010(200006)80:8<1169::aid-jsfa614>3.0.co;2-p
Subject(s) - respiration , respiratory quotient , irradiation , ethylene , respiratory system , chemistry , zoology , horticulture , biology , botany , biochemistry , anatomy , catalysis , physics , nuclear physics
Respiration and ethylene production rates of irradiated apple slices from four apple cultivars were measured for 72 h. Doses less than 1.2 kGy had no effect on rates of CO 2 production and O 2 consumption, and irradiation at doses between 1.2 and 2.4 kGy had minimal effect for all cultivars. Respiratory response of ‘Idared’, ‘Law Rome’ and ‘Empire’ slices to irradiation was curvilinear, with maximum respiration occurring in the 3–6 kGy dose range. Response of ‘Delicious’ slices was linear over the irradiation dose range (0–11 kGy) studied. Respiratory quotient increased with irradiation dose. The degree of maturity of the slices affected respiratory responses. Irradiation reduced ethylene production of all slices. These results suggest that irradiation doses of up to 2.4 kGy can be used with minimum effect on the respiratory physiology of tissues. © 2000 Society of Chemical Industry