应用光学, 2009, 30 (5): 885, 网络出版: 2010-05-10
He-Ne激光辐照铁棍山药贮藏保鲜的研究
Storage of Tiegun dioscorea opposita thunb by He-Ne laser irradiation
激光辐照 铁棍山药 贮藏品质 膜脂过氧化 laser irradiation Tiegun dioscorea opposita thunb storage quality lipid peroxidation
摘要
用工作波长632.8nm、功率为2.5mW的He-Ne激光器辐照铁棍山药,30min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70.2039%下降到66.61544%、从72.21325mg·g-1下降到25.87888mg·g-1、从508.5394μg·g-1下降到258.4231μg·g-1,丙二醛(MDA)和超氧阴离子含量分别从0.62mmol·g-1变为8.033122mmol·g-1、从32.99713μg·g-1变为35.53642μg·g-1,贮藏前期的超氧化物歧化酶(SOD)活性从494.864U·g-1变为1105.85U·g-1,贮藏后期的SOD活性从1105.85U·g-1变为959.167U·g-1。
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.
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. 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.