食品科学

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HPLC-ELSD法同时测定食品中的10种糖和糖醇

林 慧,颜春荣,徐春祥,蔡 晶,王多娇   

  1. 江苏省产品质量监督检验研究院,江苏 南京 210007
  • 出版日期:2013-06-25 发布日期:2013-06-17

Simultaneous Determination by HPLC-ELSD of Ten Kinds of Sugars and Sugar Alcohols in Foods

LIN Hui,YAN Chun-rong,XU Chun-xiang,CAI Jing,WANG Duo-jiao   

  1. Jiangsu Product Quality Testing and Inspection Institute, Nanjing 210007, China
  • Online:2013-06-25 Published:2013-06-17

摘要:

建立高效液相色谱-蒸发光散射法(HPLC-ELSD)同时测定食品中果糖、葡萄糖、蔗糖、麦芽糖和乳糖、赤藓糖醇、木糖醇、山梨糖醇、甘露糖醇、麦芽糖醇的方法。方法采用Grace Previl Carbohydrate ES色谱柱,柱温30℃;乙腈-水为流动相梯度洗脱,流速1.0mL/min;蒸发光散射检测器,飘移管温度95℃,氮气流量2.5L/min。结果表明:5种糖和5种糖醇均在线性0.2~20mg/mL范围内,线性良好,精密度RSD小于5%,回收率91.53%~105.2%。本方法在30min内完成了10种糖和糖醇的分离,灵敏度高,重现性好,可以用于无糖食品中糖和糖醇含量的测定。

关键词: 高效液相色谱法(HPLC), 蒸发光散射检测(ELSD), 食品, 糖, 糖醇

Abstract:

A high performance liquid chromatography with evaporative light-scattering detection (HPLC-ELSD) method
was developed for the simultaneous determination of 5 sugars including fructose, glucose, sucrose, maltose, lactose and
5 sugar alcohols inlcuding erythritol, xylitol, sorbitol, mannitol, and maltitol in foods. Extracts of samples were separated
on a Carbohydrate ES HPLC column at 30 ℃ using acetonitrile-water as mobile phase at a flow rate of 1.0 mL/min. The
detector drift tube was kept at 95 ℃ and the nitrogen rate was set at 2.5 L/min. The results showed that the linear range of all
these analytes was 0.2–20 mg/mL. The precision of the HPLC-ELSD method was < 5% in 6 replicate determinations, and
average spike recoveries were 91.53%–105.2%. Successful separation and sensitive and reproducible detection of the sugars
and sugar alcohols were achieved by this method within 30 min, thereby providing a promising approach for simultaneous
determination of sugar and sugar alcohols in food.

Key words: high performance liquid chromatography (HPLC), evaporative light-scattering detector (ELSD), food, sugar, sugar alcohols