Effect of Transition Metal Ion on Aroma Compounds Generation from Model Reaction of L- Ascorbic Acid and L-Cysteine

摘要：

The identification of aroma compounds, generated from model reaction of L-ascorbic acid and L-cysteine was performed using a solid-phase microextraction-gas chromatography-mass spectrometry technology. The effects of the small amount of Fe2+-ions, Zn2+-ions or Cu2+-ions on aroma compounds generation from model system of L-ascorbic acid and L-cysteine were investigated. The classification of aroma compounds was not affected much by Fe2+-ions-. Zn2+-ions or Cu2 +-ions, but the yield of each type of aroma compounds was decreased observably. The yield of each type of aroma compounds appeared to be affected much more by Cu2+-ions than by Zn2+-ions or Fe2+-ions depended on the different ions concentration. A plausible explanation for this phenomenon was that Fe2+-ions, Zn2+-ions or Cu2+-ions depressed the thermal degradation of L-cysteine, on the other hand, but stimulated the active intermediates to convert high molecular weight compounds.

关键词： Maillard reaction ascorbic acid aroma compound transition metal ion

作者: LIU Ying-Xuan YU Ai-Nong

作者单位: Faculty of Chemical and Environmental Engineering, Hubei University for Nationalities Enshi, China

会议类型: 国际会议

会议名称: 2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)

会议地点: 大连

会议语种:英文

页码: 313-319

在线出版日期: 2011-07-29（万方平台首次上网日期，不代表论文的发表时间）