Polychlorinated dibenzo-p-dioxins and dibenzofurans formed from sucralose at high temperatures

被引：16
|
作者：
Dong, Shujun [1 ]
Liu, Guorui [1 ]
Hu, Jicheng [1 ]
Zheng, Minghui [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicol, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China
来源：
SCIENTIFIC REPORTS | 2013年 / 3卷
基金：
中国国家自然科学基金;
关键词：
DE-NOVO SYNTHESIS; CHLORINE; FATE; PCDD;
D O I：
10.1038/srep02946
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Sucralose is a widely-used artificial high-intensity sweetener. Although doubts have been raised about the safety of sucralose by several researchers, it can still be found in a broad range of foods and beverages worldwide, including in baked goods. Sucralose may decompose at high temperatures, and participate in chlorination reactions, generating highly toxic compounds. Here, we demonstrate that heating sucralose at high temperatures in stainless steel or other metal utensils in the presence of rust (Al2O3, Fe2O3, and CuO) produces polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). PCDD/Fs were found in smoke generated during the heating of sucralose and in the residues after heating. CuO enhanced the PCDD/F yield in comparison with Al2O3 and Fe2O3.
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页数：4
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