Evaluation of the bruising susceptibility of apple in transport conditions
Evaluation of the bruising susceptibility of apple in transport conditions
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苹果运输条件下碰伤敏感性评价
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
A. M. Motlagh
中科院分区：
文献类型：
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作者：
V. Rostampour;A. M. Motlagh
Rostanour，V.&Motlagh，A.M.(2018年)。苹果在运输条件下易受擦伤的评估。保加利亚农业科学杂志，24(5)，902-908运输振动是造成苹果损伤的主要原因。之前大多数关于苹果擦伤敏感性的研究都是使用摆动装置进行的，而且是单次撞击。因此，他们对运输条件的结果并不准确，因为没有考虑组织疲劳(由循环加载引起的)和苹果质量的影响。本研究通过运输过程的振动模拟，研究了振动参数(频率和加速度)和果实特性(质量、曲率半径和声学硬度)对金冠苹果易擦伤敏感性的影响。结果表明，振动加速度越大，擦伤体积越大。增加振动频率也会降低擦伤，但在更高的频率下(f≥13 Hz)，如果加速度值大于0.5g，疲劳现象可以逆转这一趋势，增加频率会增加擦伤体积。增加苹果质量，在加速度0.5g或更大(a≥0.5g)时，增加撞击量，当加速量小于0.5g时，减少撞击量。结果还表明，声学刚度高、曲率半径小的苹果更容易受到伤害。综上所述，研究结果表明，要提高苹果的手感，必须仔细进行水果的箱内摆放，希望本研究的成果能有助于实现这一目标。
Rostampour, V. & Motlagh, A. M. (2018). Evaluation of the bruising susceptibility of apple in transport conditions. Bulgarian Journal of Agricultural Science, 24(5), 902–908 Transporting vibration is a major cause of bruising damage in apples. The most previous studies about the bruising susceptibility of apple were conducted using the pendulum device and with a single impact. So their results for transport conditions are not accurate, because the effect of tissue fatigue (caused by cyclic loading) and apple mass have not been considered. In this study, using a vibration simulation of transportation, the effect of vibration parameters (frequency and acceleration) and fruit properties (mass, curvature radius and acoustical stiffness) on bruising susceptibility of Golden Delicious apple were investigated. The results showed that, increasing the vibration acceleration increases the bruising volume. Also increasing the vibration frequency decreased the bruising, but in higher frequencies (f ≥ 13 Hz), if the acceleration value is greater than 0.5 g, the fatigue phenomenon can reverse this trend and increasing the frequency will increase the bruising volume. Increasing the apple mass, at the acceleration of 0.5 g or more (a ≥ 0.5 g), increased the bruising volume and at accelerations of less than 0.5 g, reduced the bruising volume. Also results indicated that the apples with high acoustic stiffness and low curvature radius were more vulnerable. In conclusion, the results showed that to improve the handling of apple, arrangement of fruit in the box must be carried out carefully and we hope that fi ndings of this research will help to achieve this goal.