| 张勇,高桂花.HPLC-DAD法评价青钱茶对α-葡萄糖苷酶的抑制活性[J].济宁医学院学报,2021,44(2):80-83 |
| HPLC-DAD法评价青钱茶对α-葡萄糖苷酶的抑制活性 |
| Evaluation of the Inhibition of Qingqian Tea on α-glucosidase by HPLC-DAD |
| 投稿时间：2020-12-10 |
| DOI：10.3969/j.issn.1000-9760.2021.02.002 |
| 中文关键词: α-葡萄糖苷酶 高效液相色谱法 抑制活性 青钱茶 |
| 英文关键词: α-Glucosidase HPLC Inhibition activity Qingqian tea |
| 基金项目:济宁医学院2017年青年教师扶持基金项目（JY2017KJ051） |
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| 摘要点击次数: 3255 |
| 全文下载次数: 1882 |
| 中文摘要: |
| 目的 建立高效液相色谱法-二极管阵列检测器（HPLC-DAD）法评价青钱茶对α-葡萄糖苷酶抑制活性的方法。方法 依据α-葡萄糖苷酶抑制剂可抑制α-葡萄糖苷酶对4-硝苯基-α-D-吡喃葡萄糖苷酶解的原理，以乙腈-0.3%乙酸为流动相，梯度洗脱测定4-硝苯基-α-D-吡喃葡萄糖苷酶解产物对硝基酚，检测波长315nm，流速1.0ml·min-1，柱温35℃。结果 对硝基酚在17.42~348.4μg·ml-1范围内线性关系良好，回收率为98.8%。结论 所建立的方法测定结果准确，重现性好，可用于评价青钱茶对α-葡萄糖苷酶的抑制活性。 |
| 英文摘要: |
| Objective To establish an HPLC-DAD method for evaluation the activity of α-glucosinase inhibitors of Qingqian tea.Methods According to the principle that α-glucosidase inhibitors can inhibit the enzymatic hydrolysis of α-glucosidase to 4-nitrophenyl-α-D-pyranoglucoside,an HPLC method was developed to determine p-nitrophenol,the deglycoside product of 4-nitrophenyl-α-D-glucopyranoside,using gradient elution with acetonitrile-0.3% acetic acid as mobile phase.The flow rate was 1.0 ml·min-1 and the detection wavelength and column temperature were set as 315 nm and 35℃,respectively.Results P-nitrophenol was linear in the range of 17.42~348.4μg·ml-1.The average recovery was 98.8%,with RSD of 1.5%.The method was accurate and reproducible.Conclusion The method is sensitive and accurate, and can be used to evaluate the inhibition activity of Qingqian tea on α-glucosinase. |
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