食品科学 ›› 2010, Vol. 31 ›› Issue (6): 239-242.doi: 10.7506/spkx1002-6630-201006057

• 分析检测 • 上一篇    下一篇

薄荷香精微胶囊包埋率不同测定方法的比较分析

杨 君1,赵 生1,陈科兵1,朱丽云2 ,*,蒋家新2   

  1. 1.浙江中烟工业有限责任公司 2.中国计量学院生命科学学院
  • 收稿日期:2009-06-18 出版日期:2010-03-15 发布日期:2010-12-29
  • 通讯作者: 朱丽云 E-mail:zly@cjlu.edu.cn
  • 基金资助:

    校企合作开发项目(081074)

Comparative Study of Different Methods for Determination of Entrapment Efficiency of Mint Flavour Microcapsules

YANG Jun1,ZHAO Sheng1,CHEN Ke-bing1,ZHU Li-yun2,*,JIANG Jia-xin2   

  1. (1. China Tobacco Zhejiang Industrial Co. Ltd., Hangzhou 310012, China;
    2. College of Life Sciences, China Jiliang University, Hangzhou 310018, China)
  • Received:2009-06-18 Online:2010-03-15 Published:2010-12-29
  • Contact: ZHU Li-yun2,*, E-mail:zly@cjlu.edu.cn

摘要:

通过紫外分光光度法、折光率法、近红外漫反射光谱法和气相色谱法等对薄荷香精中主要成分薄荷醇进行测定,分析4 种方法测定的薄荷醇- 乙醇溶液标准曲线的线性相关性,以获得薄荷香精微胶囊包埋率测定的最佳方法。结果表明:除紫外吸收法线性相关系数为0.9317 以外,其他3 种测定方法线性相关系数均在0.99 以上,线性相关性良好,均可以作为薄荷香精微胶囊包埋率测定的方法。

关键词: 薄荷醇, 折光率, 近红外漫反射光谱, 气相色谱, 包埋率

Abstract:

Standard curves for determination of menthol responsible for the characteristic aroma of mint flavour, by different methods such as UV absorption spectroscopy, refractive index, near-infrared diffuse reflectance spectroscopy and gas chromatography were established and their linearity was analyzed to select reliable methods for determination of entrapment efficiency of mint flavour microcapsules. Results showed that UV absorption spectroscopy gave a determination coefficient of 0.9317, whereas determination coefficients of other three methods were all over 0.99, indicating a good linear correlation. Therefore, refractive index, near-infrared diffuse reflectance spectroscopy and gas chromatography can provide a relatively accurate determination for entrapment efficiency of mint flavour microcapsules.

Key words: menthol, refractive index, near-infrared diffuse reflectance spectroscopy, gas chromatography, entrapment efficiency

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