| 赤楠叶总黄酮微波-碱水法提取工艺及其含量动态研究 |
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| 引用本文： | 黄晓冬,黄晓昆,张月琼.赤楠叶总黄酮微波-碱水法提取工艺及其含量动态研究[J].安徽农业科学,2008,36(11):4382-4385. |
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| 作者姓名： | 黄晓冬 黄晓昆 张月琼 |
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| 作者单位： | 泉州师范学院教育科学学院,福建泉州,362000 |
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| 基金项目： | 福建省教育厅科技项目(JA05318)资助. |
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| 摘 要： | 目的]探索赤楠叶总黄酮的提取工艺及含量动态变化。方法]采取微波-碱水法提取赤楠叶总黄酮,通过单因素试验与正交试验对其工艺条件进行正交优选,以优选工艺条件提取不同月份的赤楠叶总黄酮,紫外分光光度法测定与考察其含量动态变化。结果]微波功率对赤楠叶总黄酮提取率有显著影响,碱水pH值有极显著影响,优化的微波-碱水法提取工艺条件为:以原料50倍量的pH值为12的碱水,在微波功率300 W的条件下提取8 min,提取次数为1次;赤楠叶总黄酮含量在11月份左右达到最高,8月份左右降到最低。结论]微波-碱水法提取工艺是一种高效的、节约成本的赤楠叶黄酮提取方法,叶黄酮提取的最佳采叶期以11～12月为宜。
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| 关 键 词： | 赤楠 叶 黄酮 微波-碱水法 含量动态 |
| 文章编号： | 0517-6611(2008)11-04382-04 |
| 修稿时间： | 2008年1月21日 |
Study on Microwave-alkali Water Extraction Technics and Dynamic Content of Total Flavonoids in Syzyginm buxifolium Leaves |
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| HUANG Xiao-dong.Study on Microwave-alkali Water Extraction Technics and Dynamic Content of Total Flavonoids in Syzyginm buxifolium Leaves[J].Journal of Anhui Agricultural Sciences,2008,36(11):4382-4385. |
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| Authors: | HUANG Xiao-dong |
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| Abstract: | Objective] The study aimed to discover the extraction technics and dynamic content of total flavonoids in Syzyginm buxifolium leaves.Method] Total flavonoids of Syzyginm buxifolium leaves was extracted by the microwave-alkali water method.And its optimum conditions were found by the single factors experiments and orthogonal test,and the change trend of content in one year was found by ultraviolet spectrophotometry.Result] Microwave power had significant effect on the extraction rate of total flavonoids,and Alkali water pH value had more significant effect.The optimum extraction conditions of microwave-alkali water method were as follows: The ratio of material to liquid was1∶50,the alkali water pH value was 12,microwave power was 300 W,microwave treatment time was 8 minutes,extracting times was 1 times.Around November,the leaf flavone content reached the peak,but around August it reached the lowest point.Conclusion]The microwave-alkali water extracting technics was the more effective and economical method to extract Syzyginm buxifolium leaf flavonoids,and the period of best-collecting-leaf was from November to December. |
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| Keywords: | Syzyginm buxifolium Leaves Flavonoids Microwave-alkali water extraction method Dynamic content |
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