| 超临界CO2萃取杉木根化感物质对杉木的化感效应 |
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| 引用本文： | 林思祖,曹光球,杜玲,王爱萍.超临界CO2萃取杉木根化感物质对杉木的化感效应[J].林业研究,2003,14(2). |
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| 作者姓名： | 林思祖 曹光球 杜玲 王爱萍 |
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| 作者单位： | 福建农林大学林学院，福建农林大学林学院，内蒙古师范大学，福建农林大学林学院 福建南平353001，中国，福建南平353001，中国，呼和浩特010020，福建南平353001 |
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| 基金项目： | This paper was supported by Natural Science Foundation of Fujian Province (B0010020) |
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| 摘 要： | 采用正交试验及超临界CO_2流体萃取技术萃取杉木根化感物质,并通过杉木种子发芽试验进行杉木根化感物质对杉木的化感作用进行评价。结果表明:就化感物质萃取得率而言,在众多萃取因素当中,萃取压力和萃取温度是两个最主要的因素;经纯CO2及乙醇和CO2混和萃取的杉木根化感物质对杉木存在不同的化感效应,其中经乙醇和CO2混和萃取的杉木根化感物质对杉木种子发芽的抑制效应强于纯CO2萃取的化感物质。表3参20。
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| 关 键 词： | 杉木 自毒作用 超临界CO_2萃取 生物评价 |
Effect of Allelochemicals of Chinese-fir root extracted by supercritical CO2 extraction on Chinese fir |
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| LIN Si-zu,CAO Guang-Qiu,DU Ling,WANG Ai-ping.Effect of Allelochemicals of Chinese-fir root extracted by supercritical CO2 extraction on Chinese fir[J].Journal of Forestry Research,2003,14(2). |
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| Authors: | LIN Si-zu CAO Guang-Qiu DU Ling WANG Ai-ping |
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| Abstract: | Allelochemicals of Chinese-fir root was extracted by technology of supercritical CO2 extraction under orthogonal experiment design, and it was used to analyze allelopathic activity of Chinese-fir through bioassay of seed germination. The results showed that as to the available rate of allelochemicals, the pressure and temperature of extraction were the most important factors. The allelochemicals of Chinese-fir root extracted by pure CO2 and ethanol mixed with CO2 have different allelopathic activities to seed germination, and the allelochemicals extracted by ethanol mixed with CO2 had stronger inhibitory effects on seed germination than that extracted by pure CO2. |
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| Keywords: | Chinese fir Autointoxication Supercritical CO_2 extraction Bioassay Seed germination |
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