| 奶粉主要营养成份的傅里叶变换红外光谱法分析 |
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| 引用本文： | 邓月娥,孙素琴,牛立元,张裕平. 奶粉主要营养成份的傅里叶变换红外光谱法分析[J]. 营养学报, 2007, 29(1): 91-93 |
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| 作者姓名： | 邓月娥 孙素琴 牛立元 张裕平 |
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| 作者单位： | 1. 河南科技学院化工系,新乡,453003
2. 清华大学化学系,北京,100084 |
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| 基金项目： | 科技部重大科技攻关;科技部科技基础条件平台建设计划 |
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| 摘 要： | 目的:探讨傅里叶变换红外光谱法应用于奶粉主要营养成份分析的方法。方法:采用KBr压片法获得了51种不同奶粉的红外光谱,并对其进行了聚类分析。结果:脂肪(νC=O 1 747 cm-1、νCH2 2 854 cm-1、νCH2 2 925 cm-1)、蛋白质(νC=O 1658 cm-1、νN-H,C-N 1540 cm-1)和糖(νC-O 1200～900cm-1)等主要营养成分具有明显的红外指纹特征;麦芽糊精、蔗糖和乳糖也具有明显的指纹特征,随着添加量的不同而改变。结论:该方法简便、快速、可直观地对奶粉中的主要营养成份进行评价。
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| 关 键 词： | 傅里叶变换红外光谱 聚类分析 奶粉 |
| 文章编号： | 0512-7955（2007）01-0091-03 |
| 修稿时间： | 2006-06-12 |
ANALYSIS ON MAIN NUTRITIONAL COMPONENTS OF POWDERED MILKS VIA FOURIER TRANSFORM INFRARED SPECTROSCOPY |
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| DENG Yue-e,SUN Su-qin,NIU Li-yuan,ZHANG Yu-ping. ANALYSIS ON MAIN NUTRITIONAL COMPONENTS OF POWDERED MILKS VIA FOURIER TRANSFORM INFRARED SPECTROSCOPY[J]. Acta Nutrimenta Sinica, 2007, 29(1): 91-93 |
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| Authors: | DENG Yue-e SUN Su-qin NIU Li-yuan ZHANG Yu-ping |
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| Affiliation: | Department of Chemical Engineering ,Henan Institute of Science and Technology,Xinxiang 453003, China ; 1 Department of Chemistry, Tsinghua University, Beijing 100084, China |
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| Abstract: | Objective: To study the analytical method of the main nutritional components of milk powders by using Fourier transform infrared spectroscopy(FTIR).Method:The main nutritional compo-nents of 51 powdered milks were identified by pressing KBr slice and hierarchical cluster analysis of its infrared spectroscopy.Result: The main nutritious components such as lipid(νC=O1 747cm-1,νCH2 2 854 cm-1,νCH2 2 925 cm-1),protein(νC=O 1 658 cm-1,νN-H,C-N 1 540 cm-1),and carbohydrate(νC-O 1200-900 cm-1) had distinct fingerprint characteristics on FTIR spectra.Maltodextrin,sucrose and lactose also had obvious spectral characteristics,which changed along with different added contents.Conclusion: This analytical method is fast and can be used for evaluating main nutritional components of powdered milk. |
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| Keywords: | Fourier transform infrared spectroscopy Hierarchical cluster analysis powdered milk |
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