一种验证的HPLC方法用于评估kallikrein活性,并用于评估水果提取物
Hanying Ren1, Lin Xie1, Can Zhao1
1School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, PR China.
概括
一种新的高性能液态染色法 (HPLC) 方法准确地测量了复杂样品中的kallikrein (KLK) 活性. 这种可靠的测定确定了具有显著KLK调节效应的果实提取物,为新疗法开发提供了潜力.
科学领域:
- 生物化学 生物化学
- 分析化学 分析化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 对于kallikrein (KLK) 活性来说,传统的光谱测量试验在复杂的生物矩阵中容易受到光谱干扰.
- 现有方法的局限性要求开发更强大,更准确的KLK活动评估分析技术.
研究的目的:
- 建立和验证高性能液态染色学 (HPLC) 方法,以精确量化KLK活性.
- 通过开发一种没有光谱干扰的方法来克服UV-Vis光谱光度学的局限性.
- 用验证的HPLC方法选各种水果提取物以检测它们的kallikrein (KLK) 调节效应.
主要方法:
- 开发一种HPLC方法,用于分离和定量N--L-氨酸乙烯 (BAEE) 和其产物N--L-氨酸 (BA).
- 验证HPLC方法的线性,精度,准确性和检测极限 (LOD).
- 应用验证的HPLC方法来分析水性,乙醇和酸化水果提取物中的KLK活性.
主要成果:
- 通过HPLC方法,高精度和准确性 (平均回收:100.9%) 实现了BAEE和BA的完全分离.
- 该方法证明了BA (0.25 mg/L) 的低检测极限 (LOD).
- 对水果提取物的分析揭示了差异化的KLK调节效应:乙醇提取物一般激活KLK,水性提取物抑制KLK,而素水解物显示出强大而多样化的效应.
结论:
- 开发的HPLC方法是一种可靠和准确的工具,用于评估复杂样品中的KLK活性,克服光谱测定的局限性.
- 特定的水果提取物,特别是素水解物,被确定为新型卡利克林 (KLK) 调节剂的强有力的来源.
- 这些发现突出了水果衍生化合物的潜力,作为治疗应用中KLK活性调节剂.
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