Journal
SCIENTIA HORTICULTURAE
Volume 120, Issue 3, Pages 342-347Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2008.11.013
Keywords
Harvest time; Kiwifruit; Light interception; Softening; Storage; Total antioxidant capacity
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Softening process and total antioxidant activity were evaluated in kiwifruit differently exposed to light intensity and harvested at two different times (October 10 and November 14). Fruit was stored for 2 months at 0 degrees C (SI) and then maintained for a week at ambient temperature (S2). The results showed that fruit harvested later presented a faster softening rate during storage than fruit harvested earlier, even if antioxidant activity did not change. Light-exposed fruit showed higher flesh firmness than that of shaded ones. Polygalacturonase activity was higher in kiwifruit maintained for a week at ambient temperature after cool storage and, in particular the highest value was recorded in fruit harvested later. The behaviour of beta-galactosiclase was different: it did not show changes in fruit harvested later and significantly decreased in light- and shade-exposed fruit harvested earlier. (C) 2008 Elsevier B.V. All rights reserved.
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