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目的:探讨合欢皮中木脂素苷Ⅰ含量的变化规律,为确定合欢皮的采收期提供科学依据。方法:采用HPLC法,色谱柱为Boston Green ODS C_(18)(250 mm×4.6 mm,5μm),流动相为乙腈-0.04%磷酸水溶液(18∶82),流速为1.0 ml·min~(-1),检测波长204 nm,柱温25℃。结果:不同采收期合欢皮中木脂素苷Ⅰ含量差异明显。木脂素苷Ⅰ在1月含量最高,1~3月含量骤降,4~12月含量逐渐升高。结论:不同采收期合欢皮中木脂素苷Ⅰ的含量不同,确定合欢皮的最佳采收期应为11月~次年1月。
OBJECTIVE: To investigate the variation of lignin glycoside Ⅰ content in Albizzia solanaceae, and provide a scientific basis for determining the harvesting time of albizzia bark. Methods: The mobile phase consisted of Boston Green ODS C18 (250 mm × 4.6 mm, 5 μm) with acetonitrile-0.04% phosphoric acid solution (18:82) at a flow rate of 1.0 ml · min ~ 1), detection wavelength 204 nm, column temperature 25 ℃. Results: The content of lignin glycoside Ⅰ in different harvest time was significantly different. The content of lignin Ⅰ was the highest in January, the content in January to March dropped sharply, and the content increased from April to December. Conclusion: The content of lignan Ⅰ in different harvest time is different, and the optimum harvesting period of Acacia cordata should be from November to January.