薛友林,刘英杰,张鹏,贾晓昱,李江阔.精准温控保鲜箱对黄花菜冷藏品质的影响[J].包装工程,2021,42(15):1-9.
XUE You-lin,LIU Ying-jie,ZHANG Peng,JIA Xiao-yu,LI Jiang-kuo.Effect of Precision Temperature Control Box on Quality of Daylily during Cold Storage[J].Packaging Engineering,2021,42(15):1-9. |
| 精准温控保鲜箱对黄花菜冷藏品质的影响 |
| Effect of Precision Temperature Control Box on Quality of Daylily during Cold Storage |
| 投稿时间：2021-03-10 |
| DOI：10.19554/j.cnki.1001-3563.2021.15.001 |
| 中文关键词: 黄花菜 相温贮藏 保鲜箱 蔬菜品质 主成分分析 |
| 英文关键词: daylily phase temperature storage storage box vegetable quality principal component analysis |
| 基金项目:国家重点研发计划(2018YFD0401303) |
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| 中文摘要: |
| 目的 探究精准温控保鲜箱对黄花菜冷藏保鲜效果的影响。方法 以甘肃黄花菜为实验材料，经聚乙烯塑料盒包装后，分别装入普通保温箱和精准温控保鲜箱中，并置于(0±1)℃的冷库中贮藏，每隔7 d测定黄花菜的各项生理生化指标、营养指标和色泽变化，并对箱内的温度进行监控。结果 相较于普通保温箱，在整个贮藏期间精准温控保鲜箱中温度较低((0.6±0.1)℃);贮藏14 d时，精准温控保鲜箱处理组的维生素C、还原糖、总酚和黄酮含量较高，且叶绿素a和叶绿素b总质量分数(1.31%)显著(P<0.05)高于普通保温箱处理组。与普通保温箱相比，精准温控保鲜箱能够有效抑制黄花菜pH值、呼吸强度、乙烯生成速率和类胡萝卜素含量的上升，较好地保持黄花菜色泽。利用SPSS综合评分法得出，精准温控保鲜箱得分较高，精准温控保鲜箱的保鲜效果好于普通保温箱。通过OPLS-DA分析得出，不同保鲜箱处理的差异性指标为总色差ΔE和叶绿素b含量。通过测定通常被认为与氧化反应相关的多酚氧化酶和过氧化物酶活性，可知精准温控保鲜箱能有效延缓多酚氧化酶活性上升，维持过氧化物酶活性，且该处理显著降低了黄花菜的褐变速度。结论 精准温控保鲜箱处理能较好地维持黄花菜的采后贮藏品质。 |
| 英文摘要: |
| In order to explore the effect of precision temperature preservation box on keeping freshness of daylily during cold storage, Gansu daylily was used as experimental material. They were packed in the polyethylene plastic box, put into the common storage box and the precision temperature control box, and stored in a cold storage at (0±1)°C.The physiological and biochemical indexes, nutritional indexes and color changes of daylily were determined every 7 d, and the temperature inside the storage box was monitored. The results showed that the temperature in the precision temperature control box was the lowest during storage, which was (0.6±0.1)°C. After 14 days of storage, the content of vitamin C, reducing sugar, total phenols and flavonoids in the the precision temperature control box was higher, and the total mass fraction of chlorophyll a and chlorophyll b (1.31%) was significantly (P<0.05) higher than the common storage box. Compared with the common storage box, the precision temperature control box can effectively inhibit the increase of acidity, respiratory intensity, ethylene production rate and carotenoid content, and better maintain the color of daylily. By SPSS comprehensive scoring method, it came to that the precision temperature control box ranked the highest, with a better fresh-keeping effect compared with common boxes. OPLS-DA analysis showed that the difference indexes of different storage boxes were ΔE and the content of chlorophyll b.Then the activities of PPO and POD were measured, which are generally considered to be related to oxidation reactions. The results showed the precision temperature control box can effectively inhibit the activities of PPO, maintain the activity of POD in a relatively stable level, and significantly reduced the browning speed of daylily. Therefore, the precision temperature control box can better maintain the postharvest storage quality of daylily. |
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