食品营养组分对抗坏血酸模型生成呋喃的影响  

The Effect of Food Nutritive Components on the Formation of Furan in Ascorbic Acid Model System

作　　者：蒋玉洁[1] 张雅楠[1] 申明月[1] 洪涛[1] 刘倩[1] 聂少平[1] 

机构地区：[1]南昌大学食品科学与技术国家重点实验室,南昌330047

出　　处：《中国食品学报》2017年第12期13-18,共6页Journal of Chinese Institute Of Food Science and Technology

基　　金："十二五"国家科技支撑计划项目(2014BAD04B03);国家重点基础研究发展计划项目(973计划)(2012CB720805);教育部新世纪优秀人才支持计划项目(NCET-12-0749)

摘　　要：目的:研究食品营养组分对抗坏血酸模型生成呋喃的影响。方法:选取几种重要的单糖、不饱和脂肪酸、氨基酸、无机盐等食品营养组分加入抗坏血酸模型,模拟密封罐装食品的灭菌条件(121℃下油浴30 min),采用顶空-气相色谱-质谱(HS-GC-MS)监测呋喃含量。结果:半乳糖对抗坏血酸模型生成呋喃有促进作用,而葡萄糖对此模型具有双重影响。亚油酸、亚麻酸均对抗坏血酸模型生成呋喃具有促进作用,且亚麻酸的促进作用要大于亚油酸。对于丝氨酸、苏氨酸和谷氨酸,当添加量<2 mg会抑制抗坏血酸模型生成呋喃;当添加量>10 mg,对抗坏血酸模型生成呋喃具有促进作用。此外,铁、镁对抗坏血模型生成呋喃起到促进作用,而钙对此模型生成呋喃的影响取决于它的添加量。总体而言锌会抑制抗坏血酸模型生成呋喃。结论:二元体系下抗坏血酸模型生成呋喃的机制比较复杂,加入呋喃前体物不仅会促进此模型中呋喃生成,还会发生竞争反应抑制呋喃生成。金属元素对抗坏血酸生成呋喃的影响很大程度取决于其自身的性质。To investigate the effect of different food components on the generation of furan in ascorbic acid model,different content of these components（monosaccharides, polyunsaturated fatty acids, amino acids, minerals） are added to the system. Then these models were heated in oil bath at 121 ℃ for 30 minutes to simulate the sterilization of canned food, and headspace-gas chromatography-mass spectrometry（HS-GC-MS） was applied to monitor the furan content. The results demonstrated that galactose has a stimulative effect on the formation of furan in ascorbic acid model, while glucose has a double effect which depends on its content. Linoleic acid and linolenic acid both has a stimulative effect on the formation of furan in ascorbic acid model, and the promoting effect of linolenic acid is higher than linoleic acid. Among three amino acids（serine, threonine and glutamic acid）, addition（〈2 mg） has an inhibitory effect on the ascorbic acid model, addition（〉10 mg） has a promoting effect on the formation of furan. Ferric and magnesium has a promoting effect on the formation of furan in ascorbic acid model, and that addition of low content of calcuim has a stimulative effect on the formation of furan in ascorbic acid model, while high addition has an inhibitory effect. Moreover, zinc has a little inhibitory effect on the ascorbic acid model. The mechanism of the formation of furan in two element system is relatively complex, furan precursors not only promote to generate furan, but also inhibit the formation of furan because of competitive reaction in system. And the effect of metal elements on the formation of the ascorbic acid is very much dependent on the nature of its own.

关 键 词：食品营养组分 抗坏血酸模型 呋喃 顶空-气相色谱-质谱联用 

分 类 号：TS201.4[轻工技术与工程—食品科学]