食品科学 ›› 2005, Vol. 26 ›› Issue (11): 179-182.

• 分析检测 • 上一篇    下一篇

信息采集方式对蛋白质检测的影响与分析

 孙建平, 侯彩云, 常国华   

  1. 中国农业大学食品科学与营养工程学院
  • 出版日期:2005-11-15 发布日期:2011-10-01

Investigation on Digital Image Collecting Method for Rapid Determination of Protein Content of Milk Powder

 SUN  Jian-Ping, HOU  Cai-Yun, CHANG  Guo-Hua   

  1. College of Food Science and Nutrition Engineering, China Agricultrual University
  • Online:2005-11-15 Published:2011-10-01

摘要: 分别利用分光光度比色法与数字图像采集法两种方式,对蛋白质检测中的原始信息进行了采集与分析。结果表明,以纯蛋白溶液为研究对象,采用不同的信息采集方式,检测结果具有高度的一致性;以乳粉为研究对象,采用数字图像采集方式,以色度G值作为特征参数,可以获得较高的检测精度。通过数字图像采集方式进行乳粉蛋白质的检测,具有操作简便、结果准确、快速高效的优点,尤其适宜于流通领域中食品质量的检测与评价。

关键词: 分光光度计, 数字图像, 蛋白质, 色度值

Abstract: The original information of different protein content solution was collected using Spectrophotometric Colorimetry method (SPC) and Digital Image Collecting method (DIC) respectively. Highly consistency was shown for pure protein solution in comparison with the two methods. For milk powder, higher precision was shown using the colorimetric value G as a characteristic parameter by DIC method. The advantages of using DIC method to detect the content of protein in milk powder of easy operation, high precision and instant and high efficiency. It is more suitable for rapidly determinating and evaluating the food qualityi n the field ofc irculation.

Key words: spectrophotometer, digital image, protein, chroma