| 不同贮藏时间对菠菜新鲜度指标的影响 |
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| 引用本文： | 马宗琪,邱念伟. 不同贮藏时间对菠菜新鲜度指标的影响[J]. 山东农业科学, 2008, 0(8) |
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| 作者姓名： | 马宗琪 邱念伟 |
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| 作者单位： | 曲阜师范大学生命科学学院,山东,曲阜,273165 |
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| 摘 要： | 为建立快速检测菠菜新鲜度的方法,本试验以叶片叶绿素含量和可溶性蛋白含量为参照,用植物效率分析仪(PEA)检测菠菜采后叶绿素荧光参数的变化。结果显示,随着室温保存时间的延长,菠菜叶片的叶绿素和可溶性蛋白显著下降,下降最快的时间分别是第3天和第2天。叶绿素荧光指标中Fm/Fo、Fv/Fm和RC/CSo与叶绿素及蛋白质含量的变化趋势相同且反应灵敏;ABS/CSo和D Io/CSo则随着室温保存时间的延长而增大,但ABS/CSo的增大可能是由于叶片透光度增加引起的。Sm、TRo/CSo、ETo/CSo等指标虽有一定的规律性变化,但反应不如上述荧光指标灵敏。以上结果表明,Fm/Fo、Fv/Fm、RC/CSo和D Io/CSo均可作为检测菠菜新鲜度的灵敏指标。
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| 关 键 词： | 菠菜 叶绿素荧光 新鲜度 |
Effect of Different Storage Periods on Spinach Fresh Degree |
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| MA Zong-qi,QIU Nian-wei. Effect of Different Storage Periods on Spinach Fresh Degree[J]. Shandong Agricultural Sciences, 2008, 0(8) |
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| Authors: | MA Zong-qi QIU Nian-wei |
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| Affiliation: | MA Zong-qi,QIU Nian-wei* |
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| Abstract: | To analyze the fresh degree of spinach by plant efficiency analyzer(PEA),some chlorophyll fluorescence indices were determined and analyzed according to the change of chlorophyll content and soluble protein content.The results were as follows.Chlorophyll content and soluble protein content of spinach leaves decreased significantly with the course of postharvest storage at room temperature,and the fastest decline happened on the third and second day respectively.The changes of Fm/Fo,Fv/Fm and RC/CSo showed parallel to the contents of chlorophyll and soluble protein,and responded more sensitively.ABS/CSo and DIo/CSo increased with the course of postharvest storage,and the increase of ABS /CSo might be due to the enhanced transparency of leaves.Sm,TRo/CSo and ETo/CSo responded insensibly,though they changed regularly.The results above indicated that Fm/Fo,Fv/Fm,RC/CSo and DIo/CSo could be used to evaluate the fresh degree of spinach. |
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| Keywords: | Spinach Chlorophyll fluorescence Fresh degree |
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