食品科学

• 分析检测 • 上一篇    下一篇

RP-HPLC法测定螺旋藻中β-胡萝卜素的含量

罗光宏,王 勤,袁小龙,祖廷勋   

  1. 1.河西学院凯源生物技术开发中心,甘肃省高校河西走廊特色资源利用省级重点实验室,甘肃 张掖 734000;
    2.甘肃省张掖市食品药品检验所,甘肃 张掖 734000;3.张掖医学高等专科学校,甘肃 张掖 734000
  • 出版日期:2013-11-25 发布日期:2013-12-05

Determination of β-Carotene in Spirulina by RP-HPLC

LUO Guang-hong,WANG Qin,YUAN Xiao-long,ZU Ting-xun   

  1. 1. Kaiyuan Bio-tech Development Center, Microalgae Engineering Research Center of Gansu Province, Hexi University,Zhangye 734000, China;2. Zhangye Institute for Food and Drug Control, Zhangye 734000, China;
    3. Zhangye Medical College, Zhangye 734000, China
  • Online:2013-11-25 Published:2013-12-05

摘要:

目的:建立RP-HPLC法测定螺旋藻中β-胡萝卜素的含量,并对10批样品进行考察,制定含量限度。方法:采用RP-HPLC法测定,色谱柱:Hypersil ODS-2 C18柱(150mm×4.6mm,5μm);检测波长448nm;流动相甲醇-乙腈(90:10,V/V);流速1.2mL/min;柱温30℃。结果:β-胡萝卜素的线性回归方程为Y=1388.33X+17.74(r=0.9999),β-胡萝卜素对照品进样量在0.517~4.653μg范围内与峰面积积分值呈良好的线性关系,平均加样回收率为98.03%,RSD为0.94%(n=6)。结论:本方法准确可靠、重复性好,为螺旋藻制剂质量标准的制定提供科学依据。

关键词: RP-HPLC, 螺旋藻, &beta, -胡萝卜素, 含量

Abstract:

Objective: To establish a method for the determination of β-carotene in Spirulina using RP-HPLC. Methods:
A Hypersil ODS-2 C18 (150 mm×4.6 mm, 5 μm) was used for the analysis with methanol-acetonitrile (90:10, V/V) as the
mobile phase at a flow rate of 1.2 mL/min at 30℃. The detection wavelength was 448 nm. Results: The linear regression
equation for β-carotene was Y = 1388.33X + 17.74 (r = 0.9999), which was linear over the range of 0.517–4.653 μg, and the
average recovery rate was 98.03% with RSD of 0.94% (n = 6). Conclusion: This method is accurate and repeatable, and can
provide a scientific basis for the quality standardization of Spirulina products.

Key words: RP-HPLC;Spirulina;&beta, -carotene;content