happyjyl 2008/11/03
ABSTRACT: Objective: To optimize the extraction process of organic acids from eucalyptus. Method: Orthogonal design is used to optimize the microwave assisted extraction of organic acids from eucalyptus from four producing areas (Zhaoqing, Guangzhou, Guangxi and Yunnan). The efficiency of microwave assisted extraction and common extraction methods (reflux extraction and soaking extraction) are compared and the contents of five organic acids are determined by high performance capillary electrophoresis. Result: When extracting with 300 ml of anhydrous ether for 4 minutes, assisted by medium-power microwave, the extraction process is optimal and the average recovery is more than 90% while the RSD is not more than 1.24. Conclusion: Microwave assisted extraction of five organic acids from eucalyptus from Zhaoqing is efficient and time-saving, which is worth promotion and application in Chinese crude drugs. Keyword：organic acid；microwave assisted extraction；high performance capillary electrophoresis 建议： 论文摘要应标明目的、方法、结果、结论。 “微波旋转提取”是你自己的提法吗？我在网上搜了一下，没看到这样的表达方式。微波提取应该都是旋转的吧？这样的话用“微波辅助提取”就可以了。
foodliu 2008/11/02
[font=宋体][font=楷体_GB2312][size=4]Selected microwave extraction of eucalyptus leaves in the best technology of organic acids. Orthogonal to optimize the design of microwave extraction process, Zhaoqing, Guangzhou, Guangxi, Yunnan and four different origin of eucalyptus leaf extract for organic acids, a comparative study of microwave extraction and commonly used extraction (back extraction, extraction) of organic The acid extraction, and high performance capillary electrophoresis determination of the five kinds of organic acid content. Microwave extraction of organic acids of the five optimization process: solvent for anhydrous ether, in power for the microwave power, extraction time of 4 minutes, the amount of solvent was 300 mL, in these conditions, organic acids, the average recovery rate of greater than 90% RSD ≤ 1.24. The results showed that the microwave extraction Zhaoqing eucalyptus leaf extract has a high content of organic acids of the five, time-saving features should be extracted in traditional Chinese medicine applied.[/size][/font][/font]
evajing100 2008/10/30
[color=#DC143C]请勿用翻译软件翻译。[/color]
gaohong5624 2008/11/01
[color=#DC143C]请勿用翻译软件翻译。[/color]
foodliu
第5楼2008/11/02
Selected microwave extraction of eucalyptus leaves in the best technology of organic acids. Orthogonal to optimize the design of microwave extraction process, Zhaoqing, Guangzhou, Guangxi, Yunnan and four different origin of eucalyptus leaf extract for organic acids, a comparative study of microwave extraction and commonly used extraction (back extraction, extraction) of organic The acid extraction, and high performance capillary electrophoresis determination of the five kinds of organic acid content. Microwave extraction of organic acids of the five optimization process: solvent for anhydrous ether, in power for the microwave power, extraction time of 4 minutes, the amount of solvent was 300 mL, in these conditions, organic acids, the average recovery rate of greater than 90% RSD ≤ 1.24. The results showed that the microwave extraction Zhaoqing eucalyptus leaf extract has a high content of organic acids of the five, time-saving features should be extracted in traditional Chinese medicine applied.
happyjyl
第6楼2008/11/03
ABSTRACT: Objective: To optimize the extraction process of organic acids from eucalyptus. Method: Orthogonal design is used to optimize the microwave assisted extraction of organic acids from eucalyptus from four producing areas (Zhaoqing, Guangzhou, Guangxi and Yunnan). The efficiency of microwave assisted extraction and common extraction methods (reflux extraction and soaking extraction) are compared and the contents of five organic acids are determined by high performance capillary electrophoresis. Result: When extracting with 300 ml of anhydrous ether for 4 minutes, assisted by medium-power microwave, the extraction process is optimal and the average recovery is more than 90% while the RSD is not more than 1.24. Conclusion: Microwave assisted extraction of five organic acids from eucalyptus from Zhaoqing is efficient and time-saving, which is worth promotion and application in Chinese crude drugs.
Keyword：organic acid；microwave assisted extraction；high performance capillary electrophoresis
建议：
论文摘要应标明目的、方法、结果、结论。
“微波旋转提取”是你自己的提法吗？我在网上搜了一下，没看到这样的表达方式。微波提取应该都是旋转的吧？这样的话用“微波辅助提取”就可以了。
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