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HPLC法测定秋果型树莓不同部位鞣花酸的含量

Determination of Ellagic Acid in Different Part of Raspberry by HPLC

  • 摘要: 为更合理地开发利用树莓资源,本文采用高效液相色谱法测定哈瑞太兹、秋福、波尔卡树莓叶片、果实和种子中鞣花酸的含量。测定条件为安捷伦18色谱柱(250mm×4.6mm,5μm),进样量10μL,柱温30℃,走样时间为45 min,流速为1.000 mL·min-1,测定波长254nm。结果表明:鞣花酸浓度在0.125~100μg·mL-1范围内与峰面积呈良好的线性关系,回归方程为y=0.017 3x+1.623 5(R2=0.998 5)。鞣花酸的含量从16.41~1 364.99μg·g-1。哈瑞太兹叶片中鞣花酸含量最高,波尔卡果实中鞣花酸含量最低。树莓不同品种及同一品种不同部位中鞣花酸的含量有较大差异。

     

    Abstract: In order to develop and utilize raspberry resources more reasonably,the content of ellagic acid in the leaves,fruits and seeds of Heritage,Autumn Bliss and Porlka raspberries was determined by HPLC.The determination conditions were as follows,Agilent 18 chromatographic column(250 mm×4.6 mm,5μm),injection volume 10μL,sampling time 45 min,flow rate 1.000 mL·min-1,column temperature 30 ℃,and determination wavelength 254 nm.The results showed that there was a good linear relationship between the concentration of ellagic acid and the peak area in the range of 0.125-100μg·mL-1,and the regression equation was y=0.017 3 x+1.623 5(R~2=0.998 5).The content of ellagic acid was 16.41-1 364.99μg·g-1.The content of ellagic acid was the highest in the leaves of Heritage and the lowest in the fruits of Porlka.The content of ellagic acid in different varieties of raspberry and different parts of the same variety was quite different.

     

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