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FTIR光谱法与燕窝的品质分析
引用本文:邓月娥,孙素琴,周群,李翱.FTIR光谱法与燕窝的品质分析[J].光谱学与光谱分析,2006,26(7):1242-1245.
作者姓名:邓月娥  孙素琴  周群  李翱
作者单位:1. 生命有机磷化学及化学生物学教育部重点实验室,清华大学化学系,北京,100084;河南科技学院化工系,河南,新乡,453003
2. 生命有机磷化学及化学生物学教育部重点实验室,清华大学化学系,北京,100084
3. 深圳太太药业股份有限公司,广东,深圳,518008
摘    要:直接采用傅里叶变换红外光谱法(FTIR)获得了30种干燕窝产品的红外光谱图.结果显示,这些谱图与天然燕窝的红外光谱图均有不同程度的差异,主要表现在蛋白质、氨基酸(1 634,1 535 cm-1)和多糖(1 034cm-1)等主要营养成分的吸收峰;在干燕窝的谱图中,亚甲基的吸收峰(2 935 cm-1)及蛋白质和氨基酸的吸收峰(1 647,1 533,1 447 cm-1)等处的峰形、峰位和峰强度均与明胶的谱图较相似,说明大多数干燕窝样品中添加了不同量的明胶等物质;有些干冰糖燕窝产品中冰糖含量高达99%,燕窝仅含1%,在红外谱图上几乎观察不到燕窝的特征蜂.因此,市售燕窝的质量令人担忧.用FTIR可简便、快速、直观的评价燕窝产品的品质.

关 键 词:傅里叶变换红外光谱  燕窝  蛋白质  氨基酸  多糖
文章编号:1000-0593(2006)07-1242-04
收稿时间:2005-06-28
修稿时间:2005-09-16

Analysis and Discrimination of Collocalia Esculenta L. via FTIR Spectroscopy
DENG Yue-e,SUN Su-qin,ZHOU Qun,LI Ao.Analysis and Discrimination of Collocalia Esculenta L. via FTIR Spectroscopy[J].Spectroscopy and Spectral Analysis,2006,26(7):1242-1245.
Authors:DENG Yue-e  SUN Su-qin  ZHOU Qun  LI Ao
Institution:Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China.
Abstract:Collocalia esculenta L.is called Yanwo in China.Thirty kinds of dry yanwo were identified by Fourier transform(infrared) spectroscopy(FTIR).The results indicated that there were some obvious differences in FTIR between the dry yanwo and the natural yanwo,mainly represented in some absorption peaks of protein,amino acid(1 634,1 535 cm~(-1)) and amylase((1 034) cm~(-1)).Meanwhile,the shape,position and intensity of the peaks from methylene(2 935 cm~(-1)),protein and amino acid((1 647),1 533,1 447 cm~(-1)) in dry yanwo were similar to those of the glutin.Therefore,different amounts of glutin were added in dry yanwo samples.The content of candy in some dry candy yanwo products was as high as 99%,but the content of yanwo was only 1%.The characteristic peaks of yanwo in these products even could not be found.So the quality of yanwo in the(market) could not be guaranteed from these results.FTIR is fast and direct to analyse and evaluate the quality of yanwo product.
Keywords:Fourier transform infrared spectroscopy  Yanwo  Protein  Amino acid  Amylase
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