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Multi-Analytical Approach to Study Fresh-Cut Apples Vacuum Impregnated with Different Solutions

Tappi, Silvia; Velickova, Elena; Mannozzi, Cinzia; Tylewicz, Urszula; Laghi, Luca and Rocculi, Pietro (2022) Multi-Analytical Approach to Study Fresh-Cut Apples Vacuum Impregnated with Different Solutions. Foods, 11 (3), p. 488.

[thumbnail of Tappi et al. foods-11-00488.pdf] PDF - Published Version - English


The aim of this study was to evaluate the effect of different solutions for vacuum impregnation (VI) of fresh-cut (FC) apples through an innovative multi-analytical approach. In particular, the individual and synergistic effects of ascorbic acid and calcium lactate on the preservation of freshness of FC apples was assessed through color, texture, microscopy, isothermal calorimetry, and time-domain nuclear magnetic resonance (TD-NMR) evaluations. The analysis was performed immediately after VI and after 24 h of refrigerated storage. The obtained results showed a good preservation of color and higher firmness in the impregnated samples. Concerning the metabolic heat production, a decrease following the VI treatment was observed, especially when the combined solution was used for the impregnation. The TD-NMR studies showed higher changes in terms of signal intensity and transversal relaxation time T2 after 24 h of storage, evidencing the meta-stability of the plant material for its dynamic tissue nature, and the dewatering/impregnation processes evolution until the achievement of dynamic equilibrium.

EPrint Type:Journal paper
Keywords:Apples; Isothermal calorimetry; Minimal processing; TD-NMR; Vacuum impregnation
Agrovoc keywords:
minimally processed foods
isothermal processes
water availability
Subjects: Food systems > Food security, food quality and human health
Food systems > Processing, packaging and transportation
Food systems
Research affiliation: Italy > Univ. Bologna
European Union > CORE Organic Cofund > Joint call with SUSFOOD2 – 2019 > MILDSUSFRUIT
Deposited By: Tylewicz, Dr Urszula
ID Code:44234
Deposited On:30 Jun 2022 11:21
Last Modified:30 Jun 2022 11:21
Document Language:English
Refereed:Peer-reviewed and accepted

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