Volume 53, Issue 4 pp. 453-464
RESEARCH ARTICLE

Textural thermo-mechanical properties of sweet cherry for postharvest damage analysis

Xuewei Han

Xuewei Han

College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, China

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Xue An

Xue An

College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, China

Contribution: Data curation (equal), Methodology (equal)

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Tobi Fadiji

Tobi Fadiji

Postharvest Research Laboratory, Department of Botany and Plant Biotechnology, University of Johannesburg, Johannesburg, South Africa

Contribution: Writing - review & editing (lead)

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Zhiguo Li

Corresponding Author

Zhiguo Li

College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, China

Correspondence

Zhiguo Li, College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.

Email: [email protected]

Contribution: Conceptualization (lead), Resources (lead), Supervision (lead), Writing - review & editing (equal)

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Mehdi Khojastehpour

Mehdi Khojastehpour

Department of Biosystems Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

Contribution: Supervision (equal)

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First published: 24 January 2022
Citations: 12

This article was published on AA publication on: 24 January 2022.

Funding information: Chinese Universities Scientific Fund, Grant/Award Number: 2452018313; European Marie Curie International Incoming Fellowship, Grant/Award Numbers: 326847, 912847

Abstract

In this study, the textural thermo-mechanical properties of three sweet cherry varieties were systematically investigated by the puncture test of whole fruit, uniaxial tension of the exocarp, and uniaxial compression test of mesocarp. It was found that the puncture test can not only reflect the shear mechanics of the exocarp in vivo at the tissue level, but it can also characterize the resistance level of fruit to puncture damage at the macroscopic level, particularly when the puncture failure stress is used. The environmental temperature had negative and positive significant effects on the puncture failure stress and the puncture failure deformation of the sweet cherry (p < .05), respectively. The environmental temperature showed a negative significant effect on the failure stress and elastic modulus of the sweet cherry exocarp under tension and mesocarp under compression (p < .05). As the environmental temperature increased from 5 to 40°C, the elastic modulus of the Black pearl, Summit, and Tieton sweet cherry exocarp ranged from 2.28 to 1.72, 2.57 to 1.47, and 1.98 to 1.24 MPa, respectively; and that of mesocarp ranged from 0.33 to 0.21, 0.27 to 0.19, and 0.43 to 0.23 MPa, respectively. The obtained exponential function relationships between environmental temperature and each mechanical parameter are useful for predicting the thermo-mechanical properties of sweet cherry across a 5–40°C continuous temperature range. This study provided systematical thermo-mechanical data for predicting the mechanical damage of sweet cherry in postharvest handling using the thermo-mechanical coupling numerical simulation.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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