食品科学

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啤酒花总黄酮测定方法的比较研究

李 涛,刘晓璠,杨小兰*   

  1. 山西大学生命科学学院,山西 太原 030006
  • 出版日期:2014-09-25 发布日期:2014-09-17
  • 通讯作者: 杨小兰
  • 基金资助:

    国家自然科学基金面上项目(31171748);山西省科技攻关项目(20090321097)

Comparative Study on Assays for Determination of Flavonoids in Hops (Humulus lupulus L.)

LI Tao, LIU Xiao-fan, YANG Xiao-lan*   

  1. College of Life and Science, Shanxi University, Taiyuan 030006, China
  • Online:2014-09-25 Published:2014-09-17
  • Contact: YANG Xiao-lan

摘要:

以高效液相色谱法对啤酒花总黄酮含量的测定结果作为评判标准(相对准确值),比较与评价AlCl3分光光度法、Al(NO3)3分光光度法和硼氢化钠/氯醌分光光度法3 种比色法测定酒花总黄酮含量的准确性。结果表明,高效液相色谱法测定酒花总黄酮含量为(12.73±0.26) mg/g;AlCl3法测得总黄酮含量为(13.66±0.45)mg/g,与高效液相色谱法偏差率为7.3%;而Al(NO3)3法测定结果为(43.53±1.16)mg/g,与高效液相色谱法的偏差率为241.9%;硼氢化钠/氯醌法测定结果为(70.25±1.42)mg/g,与高效液相色谱法的偏差率为451.8%。提出AlCl3分光光度法比其他2 种比色法更适用于酒花总黄酮含量的测定,该方法误差小,准确性好。

关键词: 酒花, 总黄酮, 分光光度法, 高效液相色谱法, 黄腐酚

Abstract:

The accuracy of three spectrophotometric assays for the determination of flavonoids in hops
(Humulus lupulus L.) using respectively AlCl3, Al(NO3)3 and sodium borohydride/chloranil (SBC) was evaluated by
comparison with the reference data (relatively more accurate) from HPLC analysis. The results showed that the total content
of flavonoids in hops was (12.73 ± 0.26) mg/g by HPLC, compared to (13.66 ± 0.45) mg/g, (43.53 ± 1.16) mg/g, and
(70.25 ± 1.42) mg/g with a relative deviation of 7.3%, 241.9% and 451.8%, respectively, as spectrophotometrically assayed
using AlCl3, Al(NO3)3 and SBC. Therefore, the AlCl3-based assay is proposed to be more suitable for the determination of
flavonoids in hops with smaller errors.

Key words: Humulus lupulus L., total flavonoids, colorimetric methods, high performance liquid chromatography (HPLC), xanthohumol (XN)

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