目的 比较槐角不同炮制品中黄酮类成分的量。方法 采用HPLC法,Zorbax Eclipse Plus C₁₈色谱柱(250 mm×4.6 mm,5 μm);柱温30 ℃;流动相为甲醇-0.4%冰乙酸水溶液,梯度洗脱;体积流量1.0 mL/min;检测波长256 nm。结果 染料木苷:生品(0.86%)>蜜炙(0.67%)>炒炭(0.48%);芦丁:生品(3.0%)>蜜炙(2.2%)>炒炭(0.88%);槐角苷:生品(8.08%)>蜜炙(5.73%)>炒炭(3.58%);槲皮素:生品(0.04%)<蜜炙(0.05%)<炒炭(0.12%);染料木素:生品(0.06%)<蜜炙(0.08%)<炒炭(0.21%);山柰素:生品(0.01%)<蜜炙(0.02%)<炒炭(0.54%)。结论 槐角饮片中黄酮类成分炮制后染料木苷等黄酮苷成分的量降低,苷元的量升高,可能是饮片功效不同的原因。

Objective To compare the content of flavonoids from Sophorae Fructus by different processing methods. Methods HPLC method with Zorbax Eclipse Plus C₁₈ column (250 mm × 4.6 mm, 5 μm) was used in the experiment; Methanol-0.4% acetic acid was used as mobile phase, with gradient elution; Column temperature was set as 30 ℃; The flow rate was 1.0 mL/min and detection wavelength was 256 nm. Results Genistin: crude (0.86%) > stir-frying with honey (0.67%) > carbonizing by stir-frying (0.48%); Rutin: crude (3.0%) > stir-frying with honey (2.2%) > carbonizing by stir-frying (0.88%); Sophoricoside: crude (8.08%) > stir-frying with honey (5.73%) > carbonizing by stir-frying (3.58%); Quercetin: crude (0.04%) < stir-frying with honey (0.05%) < carbonizing by stir-frying (0.12%); Genistein: crude (0.06%) < stir-frying with honey (0.08%) < carbonizing by stir-frying (0.21%); Kaempferide: crude (0.01%) < stir-frying with honey (0.02%) < carbonizing by stir-frying (0.54%). Conclusion Among the flavonoids from Sophorae Fructus after processing, the content of flavonoid glycosides is reduced and the content of flavonoid aglycone is increased simultaneously, which may be related to the different functions of crude Sophorae Fructus, Sophorae Fructus stir-fried with honey, and Sophorae Fructus carbonized by stir-frying pieces.

中医药行业科研专项:全国中药炮制技术规范研究——土炒、米炒、水飞(201207004-8);河南中医学院科研苗圃工程项目(MP2013-18)