张一.亚临界载荷对樱桃番茄呼吸强度的影响[J].包装工程,2016,37(21):152-156.
ZHANG Yi.Effect of Subcritical Load on Breathing Intensity of Cherry Tomatoes[J].Packaging Engineering,2016,37(21):152-156. |
| 亚临界载荷对樱桃番茄呼吸强度的影响 |
| Effect of Subcritical Load on Breathing Intensity of Cherry Tomatoes |
| 投稿时间：2016-08-04 修订日期：2016-11-10 |
| DOI： |
| 中文关键词: 樱桃番茄 呼吸速率 亚临界跌落高度 数学模型 |
| 英文关键词: cherry tomatoes respiratory rate subcritical dropping height mathematical models |
| 基金项目: |
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| 中文摘要: |
| 目的 分析单个樱桃番茄在亚临界载荷下受到跌落冲击而发生的延时损伤，以及这种损伤对果品呼吸强度的影响。方法 以樱桃番茄为研究对象，设计多组跌落高度实验分析其损伤程度与跌落高度的关系，得出樱桃番茄的临界跌落高度。设计临界高度以下不同高度的对比实验，然后把跌落后的樱桃番茄放入密封的保鲜盒内，在相同的条件下间隔时间测量其CO2/O2浓度的变化。最后，绘制出跌落高度与呼吸速率的关系图，根据数据拟合出亚临界载荷强度与呼吸强度关系的数学模型。结果 临界高度以下，樱桃番茄受到损伤冲击后的呼吸速率会发生变化；跌落高度越高，在贮藏初始阶段，樱桃番茄的呼吸速率下降越快，最后趋于平衡；跌落高度越高，呼吸速率越大。结论 研究结果对果品包装上的改进具有重要价值。 |
| 英文摘要: |
| The work aims to analyze the time delay damage of a single cherry tomato caused by drop impact under subcritical load, and the effect of such damage on fruits’ breathing intensity. With cherry tomatoes as the research object, a few groups of drop height experiments were designed to analyze the relationship between damage degree and drop height, so as to find out the critical drop height. Contrast experiments at different heights below the critical height were designed. Then the cherry tomatoes dropped were placed in the airtight fresh boxes. CO2/O2 concentration under the same conditions were measured at intervals. Finally, a figure of the relationship between the drop height and the respiratory rate was drawn. The mathematical models concerning the relationship between subcritical load strength and breathing intensity were fitted according to the data. The respiratory rate of cherry tomato subjected to damage and impact was changed below the critical height; at the beginning of storage, the higher the drop height was, the faster the respiratory rate of cherry tomato decreased; and it eventually tended to balance. The higher the drop height was, the greater the respiratory rate was. The results of this study will have important values in improving the packaging of the fruits. |
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