食品科学

• 基础研究 • 上一篇    下一篇

3 种单糖模拟体系中5-羟甲基糠醛的形成动力学分析

张玉玉,张 兴,章慧莺,陈怡颖,陈海涛,李全宏   

  1. 1.北京工商大学食品学院,北京市食品风味化学重点实验室,北京 100048;
    2.中国农业大学食品科学与营养工程学院,北京 100083
  • 出版日期:2014-09-15 发布日期:2014-09-12

Kinetic Studies on 5-Hydroxymethylfurfural Formation in Three Kinds of Monosaccharide Solution Model Systems during Thermal Processing

ZHANG Yu-yu, ZHANG Xing, ZHANG Hui-ying, CHEN Yi-ying, CHEN Hai-tao, LI Quan-hong   

  1. 1. Beijing Key Laboratory of Flavor Chemistry, School of Food and Chemical Engineering, Beijing Technology and Business University,
    Beijing 100048, China; 2. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Online:2014-09-15 Published:2014-09-12

摘要:

为了研究单糖溶液模拟体系中5-羟甲基糠醛的形成动力学规律,本实验以葡萄糖、果糖和半乳糖3种单糖为研究对象,通过高效液相色谱分析研究了单糖溶液模拟体系中5-羟甲基糠醛的形成动力学模型。结果显示,初始pH值对单糖溶液模拟体系中5-羟甲基糠醛的形成影响较大。在初始pH 2~8的范围内,pH 2时,5-羟甲基糠醛的形成量最大。随着加热温度的升高和时间的延长,3 种糖溶液模拟体系中5-羟甲基糠醛的形成量呈增加的趋势,溶液pH值呈下降趋势。在加热温度为80、100、120 ℃时,5-羟甲基糠醛的形成符合一级动力学模型。

关键词: 5-羟甲基糠醛, 动力学, 单糖, 模拟体系

Abstract:

The formation kinetics of 5-hydroxymethylfurfural was investigated in three monosaccharide solution model
systems (glucose, fructose and galactose). In this paper, 5-hydroxymethylfurfural contents in the monosaccharide model
systems were determined by high performance liquid chromatography (HPLC). Results indicated that the formation of HMF
could be related to the initial pH. The content of HMF reached the maximum level at pH 2. With the increase of temperature
and time, the content of HMF increased, while the pH decreased. The color became darker in the monosaccharide model
systems. At 80, 100 and 120 ℃, the formation of HMF was in accordance with first-order kinetics.

Key words: 5-hydroxymethylfurfural, kinetics, monosaccharide, model system

中图分类号: