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投稿时间:2023-05-06
投稿时间:2023-05-06
中文摘要: 为建立同时测定八月瓜果皮中6 种单糖组分的色谱分离方法,采用1-苯基-3-甲基-5-吡唑啉酮(1-phenyl-3-methyl-5-pyrazolone,PMP) 柱前衍生和高效液相色谱法测定八月瓜果皮中6 种单糖组分。色谱柱为SHIMADZU-C18(4.6 mm×250 mm,5 μm),流动相为乙腈(A)-0.05 mol/L 甲酸铵溶液(B)梯度洗脱(0~10 min:18% A;10~20 min:18%~20% A;20~40 min:20%~23% A;40~60 min:23% A),柱温30 ℃,流速1 mL/min,检测波长245 nm。结果表明,所建立的PMP-HPLC 柱前衍生化法可准确地测定八月瓜果皮中的D-甘露糖、L-鼠李糖、D-半乳糖醛酸、D-葡萄糖、D-半乳糖和D-阿拉伯糖含量,6 种单糖成分在各自质量浓度范围内线性关系良好(R2≥0.998 3),加样回收率为92.58%~100.02%。10 批八月瓜果皮样品中均检出6 种单糖,D-甘露糖、L-鼠李糖、D-半乳糖醛酸、D-葡萄糖、D-半乳糖和D-阿拉伯糖平均物质的量比为1.18 ∶1.00 ∶23.25 ∶11.73 ∶3.51 ∶5.88,其中D-半乳糖醛酸含量为51.84~212.84 mg/g,D-葡萄糖含量为22.44~73.23 mg/g,D-阿拉伯糖含量为6.14~60.01 mg/g,是八月瓜果皮中的单糖主要成分。该试验所建立的方法操作简便、重复性好和准确度高,适用于八月瓜果皮多糖中单糖成分的分析。
Abstract:Six monosaccharides in Akebia trifoliate pericarp were determined by 1 -phenyl -3 -methyl -5 -pyrazolone(PMP)reagent and high performance liquid chromatography(HPLC)with pre-column derivatization.The monosaccharides were determined by HPLC on a SHIMADZU-C18 column (4.6 mm × 250 mm,5 μm)with a mobile phase composed of acetonitrile(A)-0.05 mol/L ammonium formate solution(B)(0-10 min:18% A;10-20 min:18%-20% A;20-40 min:20%-23% A;40-60 min:23% A).The column temperature was 30 °C,the flow rate 1 mL/min,and the detection wavelength 245 nm.The results showed that the PMP-HPLC with precolumn derivatization could accurately determine the contents of D -mannose,L-rhamnose,D -galacturonic acid,D-glucose,D-galactose,and D-arabinose in Akebia trifoliate peel.All six monosaccharides exhibited a linear relationship(R2 ≥0.998 3)within their respective mass concentration ranges,and the sample recovery rates were 92.58%-100.02%.Six monosaccharide components were all detected in 10 batches of Akebia trifoliate peel,and the average molar ratio of D-mannose,L-rhamnose,D-galacturonic acid,D-glucose,D-galactose,and D-arabinose was 1.18 ∶1.00 ∶23.25 ∶11.73 ∶3.51 ∶5.88.The major monosaccharides in the pericarp were D-galacturonic acid,D-glucose,and D-arabinose with the content of 51.84-212.84,22.44-73.23,and 6.14-60.01 mg/g respectively.The method was simple,reproducible,accurate,and suitable for the analysis of monosaccharide composition in Akebia trifoliate peel polysaccharides.
keywords: Akebia trifoliate peel polysaccharides monosaccharide composition pre-column derivatization high performance liquid chromatography(HPLC)
文章编号:202321018 中图分类号: 文献标志码:
基金项目:贵州省教育厅青年科技人才成长项目(黔教合KY 字[2022]007 号);贵州省教育厅高等学校拔尖人才计划(黔教合KY 字[2019]066号);大学生创新训练项目(S202110976006、S202110976022)
作者 | 单位 |
刘永玲1,2,赵建国3,赵治兵1,2,刘向炼1,刘元凤1,李观龙1,谢国芳4* | 1.贵阳学院 食品科学与工程学院,贵州 贵阳 550005;2.贵州省果品加工工程技术研究中心,贵州 贵阳 550005;3.华润雪花啤酒(黔南)有限公司,贵州 黔南 551200;4.贵州大学 酿酒与食品工程学院,贵州 贵阳 550025 |
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