| 烟叶硝酸还原酶活性在烘烤过程中的变化 |
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| 引用本文： | 张树堂,杨雪彪,吴玉萍,王东丹,杨金辉.烟叶硝酸还原酶活性在烘烤过程中的变化[J].中国烟草科学,2000,21(4):11-14. |
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| 作者姓名： | 张树堂 杨雪彪 吴玉萍 王东丹 杨金辉 |
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| 作者单位： | 云南烟草科学研究院农业研究所 玉溪 653100 |
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| 摘 要： | 研究了不同品种、不同部位烟叶在不同烘烤方式、不同烘烤条件下，烟叶硝酸还原酶（ＮＲ）活性在烘烤过程中的变化。结果表明，在烘烤过程中ＮＲ活性随烟叶的失水干燥而下降，失水干燥快，ＮＲ活性下降也快。在不同品种间，红花大金元的ＮＲ活性下降比Ｋ３２６的下降稍快。不同烘烤方式、不同变黄温湿度对ＮＲ活性变化也有影响，在密集烘烤和较高的变黄湿度条件下，ＮＲ活性下降最慢，酶活性保持的时间较长。
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| 关 键 词： | 硝酸还原酶 烘烤方式 烘烤条件 烟叶 酶活性 |
| 修稿时间： | 2000年6月6日 |
Changes in nitrate reductase activity of tobacco leaf during flue-curing |
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| Zhang Shutang,Yang Xuebiao,Wu Yuping,Wang Dongdan,YANG Jinhui.Changes in nitrate reductase activity of tobacco leaf during flue-curing[J].Chinese Tobacco Science,2000,21(4):11-14. |
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| Authors: | Zhang Shutang Yang Xuebiao Wu Yuping Wang Dongdan YANG Jinhui |
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| Affiliation: | Agricultural Research Institute of Yunnan Tobacco Science Research Academy Yuxi 653100 |
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| Abstract: | Changes in tobacco nitrate reductase activity with different varieties, curing modes and curing conditions were investigated. The results showed that nitrate reductase(NR) activity decreased slower in high relative humidity than in low relative humidity at yellowing stage. Considering variety, NR activity of Hongda decreased a little more quickly than that of K326. Considering curing modes, NR activity decreased much slower in bulk curing than in conventional curing and auto control box curing. The water content and moisture removal rate of tobacco leaf could greatly affect NR activity. If the moisture removal rate was too slowly during flue curing, NR activity would decrease slowly and nitrite would be accumulated. |
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| Keywords: | Nitrate reductase Flue curing mode Flue curing condition |
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