Abstract
AbstractBACKGROUND: Berry firmness is one of the most important characteristics for fresh market consumption. Blueberry firmness is also an important attribute because it is considered to be a measure of its freshness. Berries lose their firmness by loss of water and by changes in their structure.RESULTS: The postharvest life of two highbush blueberry cultivars (Bluecrop and Coville) was investigated. Several parameters related to blueberry quality were evaluated during the postharvest storage period. To assess berry texture characteristics (firmness, hardness, cohesiveness, gumminess, chewiness, springiness, resilience), a rapid non‐destructive penetrometer test by Durofel® and texture profile analysis (TPA) using a texture analyser were carried out. Low temperature inhibited the decrease of total soluble solids, total titratable acidity and increase of flesh pH value, thereby maintaining good taste quality. There was an increase in fruit firmness (Durofel index) and hardness and a decrease in chewiness and springiness during storage.CONCLUSION: There was a significant correlation among the TPA parameters and Durofel index. The Durofel index could therefore be used as a suitable indicator of fruit quality and storability, and low‐temperature storage is beneficial to maintain the taste quality of blueberry fruit after harvest. Copyright © 2009 Society of Chemical Industry
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