摘要:针对南京市售食品中食品添加剂甜蜜素的安全现状,本实验根据《食品卫生安全检验方法.理化部分》GB/T5009.29-2003中的气相色谱法,对南京市超市及零售商店的四类食品各取10个样本进行检验,并依照《国家卫生标准》GB2760-2011对其进行分析。本实验测定了四类食品共50份样品的甜蜜素含量,结果表明其中三类食品的甜蜜素含量都在国标食用安全范围内,只有一类食品中存在甜蜜素超标现象,占检测总量的2%。
关键词:甜蜜素 食品添加剂 气相色谱法
Abstract: To investigate the security status of additive sweetener in food sold in Nanjing, this experiment, according to the Food Security Hygiene Examination——Physicochemical part, adopts gas chromatography of GB/T5009.29-2003 to test 10 samples taken from four kinds of food sold in Supermarkets and retail stores in Nanjing and analyze them under State Sanitary Standard GB2760-2011. This experiment has assayed the sweetener content of 50 samples taken from 4 kinds of food, and the result shows that among these samples the sweetener contents of three kinds of food are accord with the security range of national standard, and only one kind of that is below the standard of sweetener content which accounts for two percent of all the samples.
Key words: sodium cyclamate;food additive;gas chromatography
甜蜜素是食品工业常用添加剂,因为价格低廉,风味极为近似于蔗糖,口感甜润不腻,是种品质良好的甜味剂而被大量使用与各种食品。但是如果长期过量食用会对人体肝脏和神经系统造成影响,严重会危害健康所以在添加剂量和使用上有严格控制。对于不同食品中甜蜜素含量有不同标准和检测方法。如气相色谱法﹑液相色谱法﹑薄层色谱法﹑极谱法、比色法等。国标标准中主要是气相色谱法﹑比色法和薄层层析法。气相色谱法及比色法适用于饮料﹑凉果等食品中环己基氨基磺酸钠的测定,薄层层析法适用于饮料﹑果汁﹑果酱﹑糕点中环己基氨基磺酸钠的含量测定。
本实验的目的是为了掌握甜蜜素含量检测的基本原理和技能,通过对南京市售食品中甜蜜素含量的测定研究分析甜蜜素使用情况,以及合格率等。