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| He-Ne激光辐照铁棍山药贮藏保鲜的研究 | |
| 引用本文： | 魏山城,许安涛,张瑞瑞,赵喜亭,周晓艳. He-Ne激光辐照铁棍山药贮藏保鲜的研究[J]. 应用光学, 2009, 30(5): 885-888 |
| 作者姓名： | 魏山城 许安涛 张瑞瑞 赵喜亭 周晓艳 |
| 作者单位： | 1. 河南师范大学,物理与信息工程学院,河南,新乡,453007 2. 焦作师范高等专科学校,物理系,河南,焦作,454001 3. 河南师范大学,生命科学学院,河南,新乡,453007 |
| 摘 要： | 用工作波长632.8 nm、功率为2.5 mW的He-Ne激光器辐照铁棍山药,30 min后,其芦头芽萌发受抑,山药茎含水量、可溶性总糖和可溶性蛋白含量分别从70.203 9%下降到66.615 4 4%、从72.213 25 mg·g-1下降到25.878 88 mg·g-1、从508.539 4 μg·g-1下降到258.423 1 μg·g-1,丙二醛(MDA)和超氧阴离子含量分别从0.62 mmol·g-1变为8.033 122 mmol·g-1、从32.997 13 μg·g-1变为35.536 42 μg·g-1,贮藏前期的超氧化物歧化酶(SOD)活性从494.864 U·g-1变为1 105.85 U·g-1,贮藏后期的SOD活性从1 105.85 U·g-1变为959.167 U·g-1. |
| 关 键 词： | 激光辐照 铁棍山药 贮藏品质 膜脂过氧化 |
| 收稿时间： | 2008-12-14 |
Storage of Tiegun dioscorea opposita thunb by He-Ne laser irradiation |
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| WEI Shan-cheng,XU An-tao,ZHANG Rui-rui,ZHAO Xi-ting,ZHOU Xiao-yan. Storage of Tiegun dioscorea opposita thunb by He-Ne laser irradiation[J]. Journal of Applied Optics, 2009, 30(5): 885-888 | |
| Authors: | WEI Shan-cheng XU An-tao ZHANG Rui-rui ZHAO Xi-ting ZHOU Xiao-yan |
| Abstract: | The Lo bud germination inhibition of Tiegun dioscorea opposita thunb occurred, the yam stem water content, total soluble sugar and soluble protein content respectively declined from 70.2039% to 66.61544%, from 72.21325mg·g-1 to 25.87888mg·g-1 and from 508.5394μg·g-1 to 258.4231μg·g-1, and MDA and O2 contents respectively increased from 0.62mmol·g-1 to 8.033122mmol·g-1 and from 32.99713μg·g-1 to 35.53642μg·g-1 after it was irradiated by 2.5mW He-Ne laser for 30min. After the laser irradiation, the superoxide dismutase (SOD) activity of Tiegun dioscorea opposita thunb increased from 494.864U·g-1 to 1105.85U·g-1 in the initial period of its storage and then declined from 1105.85U·g-1 to 959.167U·g-1. |
| Keywords: | laser irradiation Tiegun dioscorea opposita thunb storage quality lipid peroxidation |
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