Low-temperature electrolytic coloration and spectral properties of sucrose crystals

被引：3
|
作者：
Gu, Hongen [1 ]
Tian, Pin [1 ]
Guo, Meili [2 ]
Li, Yutong [1 ]
Hao, Xiaoqing [1 ]
机构：
[1] Tianjin Univ, Dept Phys, Tianjin 300072, Peoples R China
[2] Tianjin Inst Urban Construct, Dept Fundamental Subject, Tianjin 300384, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2012年 / 91卷
基金：
中国国家自然科学基金;
关键词：
Sucrose crystal; Electrolytic coloration; Radical; Optical absorption; Maillard reaction; SUGAR SUCROSE; FREE-RADICALS;
D O I：
10.1016/j.saa.2012.02.006
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Sucrose crystals are colored electrolytically at low temperatures and various voltages by using a pointed cathode and a flat anode. Caramels, carbonyl compounds, glycosylamines and free radicals are produced in colored sucrose crystals. No obvious characteristic absorption band in UV and visible wavelength regions is observed in absorption spectrum of uncolored sucrose crystal. Intense characteristic absorption bands of glycosylamines, carbonyl compounds and caramels are observed in absorption spectra of colored sucrose crystals. Production of caramels, carbonyl compounds, glycosylamines and free radicals are explained. Current-time curve for electrolytic coloration of sucrose crystal and its relationship with electrolytic coloration process are given. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：269 / 271
页数：3
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