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RP-HPLC法测定保健食品中五种主要黄酮类成分

作  者:
吴少平;柳小秦;李霞;李继;徐长根;刘海静
单  位:
陕西省食品药品检验所
关键词:
保健食品;RP-HPLC;黄酮类化合物
摘  要:
目的:建立RP-HPLC法测定保健食品中多种黄酮类成分的含量。方法:采用RP-HPLC法,色谱柱为KromasilC18(250mm×4.6mm,5μm),以甲醇-水为流动相,梯度洗脱,流速:1.0ml/min,检测波长260nm,柱温:30℃,测定大豆甙,染料木苷,染料木素,大豆甙元和芦荟苷五种黄酮类化合物的含量。结果:五种黄酮类成分的线性范围分别为:4.088~204.4、3.448~172.4、3.208~160.4、3.528~176.4、4.784~239.2μg/ml,相关系数依次为:0.9997、0.9998、0.9998、0.9995、0.9996。加样回收率(n=9)分别为:100.1%、97.4%、100.9%、99.5%、100.8%,;RSD分别为:1.4%、1.1%、1.2%、1.4%和1.7%。保健食品样品中五种成分的平均含量(n=5)分别为:156.81、168.42、41.98、39.84、36.55μg/ml;RSD分别为:2.6%、1.3%、1.8%、2.8%和2.3%。结论:该方法准确,重现性好,可作为此保健食品的质量控制标准。
译  名:
RP-HPLC Determination of Five Main Flavones in Health Food
作  者:
WU Shao-ping,LIU Xiao-qin,LI Xia,LI Ji,XU Chang-gen,LIU Hai-jing (Shaanxi Institute for Food and Drug Control, Xi'an 710061, China)
关键词:
health food;RP-HPLC;flavones
摘  要:
Objective:To establish an RP-HPLC method or the determination of the contents of five main flavones in health food. Methods:contents of daidzin, genistin, daidzein, alion, genistein in health food was measured by RP-HPLC [a column of Kromasil C18(250 mm×4.6 mm, 5μm), with mobile phase of methanol-water, eluted in gradient mode, flow rate 1.0 ml/min, detection wavelength of 260 nm, column temperature 30 ℃]. Results:The calibration curves showed good linearity in the range of 4.088~204.4(daidzin), 3.448~172.4(genistin), 3.208~160.4(daidzein), 3.528~176.4(alion), 4.784~239.2μg/ml (genistein), correlation coefficients were 0.9997, 0.9998, 0.9998, 0.9995, 0.9996. The average recoveries (n=9) were 100.1%, 97.4%, 100.9%, 99.5% and 100.8% respectively. The average contents (n=5) of the five components in health food were 156.81μg/ml, 168.42μg/ml, 41.98μg/ml, 39.84μg/ml, 36.55μg/ml, and RSD were 2.6%, 1.3%, 1.8%, 2.8% and 2.3%. Conclusion:An accurate and reproducible method can be used for the quality control of health food.

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