| 基于荧光光谱检测不同环境牛奶中维生素B_2含量研究 |
| |
| 引用本文： | 杨苗,;张伟刚,;杨萍果.基于荧光光谱检测不同环境牛奶中维生素B_2含量研究[J].山西农业大学学报(自然科学版),2014(3):273-276. |
| |
| 作者姓名： | 杨苗 ;张伟刚 ;杨萍果 |
| |
| 作者单位： | [1]山西农业大学文理学院,山西太谷030801; [2]南开大学现代光学研究所光电信息技术科学教育部重点实验室,天津300071; [3]山西师范大学生命科学院,山西临汾041000 |
| |
| 基金项目： | 国家自然科学基金项目（31272258） |
| |
| 摘 要： | 利用荧光光谱检测技术,对维生素B2纯溶液及牛奶荧光光谱特性进行了详细的对比研究,解释了荧光光谱产生的原因以及对应的荧光团。牛奶在300~610nm波段内有较强的荧光光谱,其中500~600nm波段内是维生素B2产生的。分析了不同环境对牛奶中维生素B2含量的影响,结果发现,牛奶中维生素B2在酸性环境下较稳定;在碱性条件下不稳定,易被分解破坏;对光敏感,对温度不敏感。因此,牛奶要避光保存。
|
| 关 键 词： | 荧光光谱 牛奶 维生素B2 |
Effect of Different Treatments on the Content of Vitamin B2 in Milk by the Fluorescence Spectroscopy |
| |
| Institution: | Yang Miao,Zhang Weigang,Yang Pingguo( 1.College of Arts and Sciences, Shanxi Agriculture University, Taigu Shanxi 030801 , China; 2.Key Laboratory of Optical Information Science and Technology, Minisity of Education, Institute of Modern Optics, NanKai University, Tianjin 300071 ,China; 3.College of Life＆Science ,Shanxi Normal University ,Linfen Shanxi 041000 ,China;) |
| |
| Abstract: | In this experiment,a comparative study on the detail fluorescence spectral characteristics of pure solution of vitamin B2 and milk was proceeded by the fluorescence spectrum detection technology,and the explanation for causes of fluorescence spectrum and corresponding fluorophore were also provided.For milk,the strong fluorescence spectrum was found in 300～610 nm band within which band of 500～600 nm was produced by vitamin B2.The influence of different environment factors with the content of vitamin B2 in the milk and the corresponding reasons were analyzed.Vitamin B2 is stable in acid in milk.In alkaline condition it is unstable,and easy to be decomposes.It is sensitive to light but not temperature.Therefore,the milk preservation should avoid the light. |
| |
| Keywords: | Fluorescence spectroscopy Milk Vitamin B2 |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
