Mechanical properties of mulberry fruit under compression and nuclear magnetic resonance tests

Hou, Junming; Hu, Weixue; Zhang, Liang; REN, Zhaotan; Sun, Qijie; Wang, Wei

doi:10.1111/jfpe.13856

Cited by 11 publications

(9 citation statements)

References 22 publications

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“…The compression speed was set as 100 mm/min and the compression length was 8 mm. Then the set of optimal parameters was determined (Hou et al, 2021). The mulberry fruit was placed horizontally on the loading platform.…”

Section: Methodsmentioning

confidence: 99%

“…The density of mulberry fruit is 1065.72 kg/m 3 . (Hou et al, 2021). The compression test was carried out with TMS-PRO professional food physical property analyzer.…”

Section: Damage Classification Based On Mulberry Fruit Energy Lossmentioning

confidence: 99%

“…Through the drop test, the relationship between the drop height, the angle of the fruit plate, the material of the fruit plate, the falling direction, and the energy loss and damage level of the fruit after falling was established. The damage degree of mulberry was established by the indentation area and deformation of the mulberry fruit (Hou et al, 2021). The drop process of mulberry fruit was analyzed through simulation, then the maximum stress and deformation of mulberry fruit in the drop process were analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of damage caused by drop impacts for mulberry fruits: An dropping experiment and numerical simulation

Hou

ZHU

et al. 2023

J Food Process Engineering

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In the process of mechanized production of mulberry, falling collision damage is one of the main damage forms, which causes serious damage and accelerates fruit decay.Through the drop collision test and simulation analysis of mulberry fruit, the relationship between drop conditions and fruit damage degree was established, so as to provide reference for reducing fruit falling damage. The drop test is carried out. The relationship between factors and indicators is established. The drop height, fruit plate angle, fruit plate material, and drop direction were taken as factors, and then the energy loss was selected as indicator. The drop process of mulberry fruit is analyzed by numerical simulation, and the maximum stress and deformation of mulberry fruit are analyzed. With the increase of the drop height, the kinetic energy of the fruit increases. When the fruit plate material is pearl cotton, the drop height changes from 200 to 1000 mm, the energy loss of fruit falling increases from 4.42 Â 10 À0.3 J to 2.14 Â 10 À0.2 J. When the drop height of fruit is 200 mm, the angle of fruit plate is 30 , and the material of fruit plate is pearl cotton, the minimum energy loss of fruit is 3.39 Â 10 À0.3 J, the fruit damage was the least. This study can provide a reference to reduce the damage of mulberry fruit in the process of mechanical harvest and transportation. Practical ApplicationsThe existing mulberry harvesting methods are manual harvesting, while the vibration harvesting methods have high harvesting efficiency and serious damage. When the harvesting parts hit the tree trunk, the mulberry fruit will leave the tree and falls onto the fruit-receiving device in the process of mechanical harvesting. There will be a collision and falling of the mulberry, which may cause serious damage. Therefore, in the process of mulberry fruit harvest, transportation, the falling, and collision damage is the main damage form.At present, there is few research on the drop impact damage test of mulberry fruit. In this study, the effects of mulberry falling direction, fruit plate material and drop height on mulberry damage were discussed by drop experiment. Then, the optimization results were carried out. The change and distribution of stress and strain in the process of collision were analyzed by numerical simulation, and the relationship between falling conditions and damage level was established. It is important to analyze the dynamic characteristics of mulberry in the process of drop. This study can be

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Section: Methodsmentioning

confidence: 99%

“…The density of mulberry fruit is 1065.72 kg/m 3 . (Hou et al, 2021). The compression test was carried out with TMS-PRO professional food physical property analyzer.…”

Section: Damage Classification Based On Mulberry Fruit Energy Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of damage caused by drop impacts for mulberry fruits: An dropping experiment and numerical simulation

Hou

ZHU

et al. 2023

J Food Process Engineering

Self Cite

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“…Hertz's theory is the underlying principle behind the assessment of texture through micro‐deformation sensors (Shirvani, Ghanbarian, & Ghasemi‐Varnamkhasti, 2014), which states a real area of contact is formed due to the immediate deformation of the two contact surfaces rather than a point or line for two spheres or two cylinders in contact, respectively. The compressive stress existing between two objects (fruit and metallic spherical probe) is comparable to their elastic modulus and contrariwise relative to their radius, respectively (Hou et al, 2021; Jahanbakhshi, Yeganeh, & Shahgoli, 2020; Saita et al, 2021). Hertz theory focused mainly on nonadhesive contact between two surfaces can be used to find contact areas and indentation depths for simple geometries.…”

Section: Contact Type Nondestructive Texture Measurementsmentioning

confidence: 99%

Emerging nondestructive techniques to quantify the textural properties of food: A state‐of‐art review

Mishra

Sahni

Pandiselvam

et al. 2023

Journal of Texture Studies

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Texture is an important sensory attribute that drives consumer acceptance of any food material. In recent times consumers' demand for high‐quality food urges food industries to provide food with consistent textural properties. However, texture measurement not just requires a trained sensory panel but also a considerable amount of time and effort. On the flip side, human observation could be subjective hence repeatability of the result may not be ensured and/or relied on. Contrary to that, objective methods for texture measurement are reliable and consistent, but are not suitable for in‐line application and also destructive in nature. The mentioned crisis has made industries opt for nondestructive texture analysis techniques. In the past decade, considerable research has been carried out on nondestructive texture analysis methods such as micro‐deformation, and acoustic and optical techniques, showing feasibility for in‐line applications. The current review focuses on the working principles and most recent applications of nondestructive techniques for texture analysis of food products. Moreover, a detailed review of contact and noncontact‐type texture measurement has been presented in this article. The literature survey is concluded with future research aspects and challenges involved in the commercialization of the nondestructive texture analysis techniques.

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“…Li et al (2016) applied the FEM to simulate the process of external force squeezing litchi along different directions and obtained the equivalent stress cloud map of the internal organization of litchi. Hou et al (2021) studied the influence of different parameters on the compression damage of mulberry through a compression test. The results show that the degree of compression damage is mainly affected by the loading displacement during compression.…”

Section: Static Pressure Characteristicsmentioning

confidence: 99%

Mechanical damage characteristics and nondestructive testing techniques of fruits: a review

Hou

LIU

et al. 2023

Food Sci. Technol

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Fruits will be subjected inevitably to various external forces in the process of harvesting, transportation, processing, and storage, which will cause mechanical damage. The research on mechanical properties and damage mechanisms of fruit can effectively control its loss. In this study, fruits are divided into different types according to their morphology and structure. The impact, vibration, static pressure, and other mechanical damage on fruits are studied. It is important to identify the damaged parts of fruit after damage quickly and accurately. Therefore, this study analyzes the application of nondestructive testing technologies such as spectral detection technology, NMR (nuclear magnetic resonance) detection technology, and acoustic and electrical characteristics detection technology in fruit damage detection.

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Mechanical properties of mulberry fruit under compression and nuclear magnetic resonance tests

Cited by 11 publications

References 22 publications

Analysis of damage caused by drop impacts for mulberry fruits: An dropping experiment and numerical simulation

Analysis of damage caused by drop impacts for mulberry fruits: An dropping experiment and numerical simulation

Emerging nondestructive techniques to quantify the textural properties of food: A state‐of‐art review

Mechanical damage characteristics and nondestructive testing techniques of fruits: a review

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