Published in Scientific Papers. Series B, Horticulture, Vol. LXVIV, Issue 1
Written by Ionuţ ISTRATE, Florin STĂNICĂ, Adrian ASĂNICĂ, Ana-Cornelia BUTCARU, Liliana TUDOREANU
The paper aims to identify the influence of 82 days of storage of the Dalinbel, Jonafree, and Real apple cultivars on their textural parameters: hardness, fracture force, cohesiveness, and chewiness. It also aims to identify a possible correlation between the textural parameters and fruits’ maturity, characterized by chlorophyll absorbance index IAD (index of absorbance difference), glucose, and fructose concentrations. Textural parameters were measured by puncture test and texture profile analysis (TPA). Dalinbel, Jonafree, and Real apples cultivars had particular variations of textural properties during storage. No significant differences were found for cortex (pulp) tissue’s hardness, cohesiveness, chewiness, and fracture force (measured by TPA) for Dalinbel apples from day 47 to 82 of storage and from day 1 to day 82 of storage for the Jonafree apples. Linear correlation analysis over all apple cultivars revealed that after 47 days of storage, there was a negative correlation between glucose concentration and fracture force (r = -0.9995; p = 0.0196). Additionally, a linear correlation was observed for IAD and fruits hardness (r = 0.9878, p = 0.0028) measured by TPA.
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