Rapid and quantitative determination of sulfite residue in tremella based on IR spectroscopy and PLS
Abstract
The change regulation of the content chemical functional group in tremella samples with different setting levels of sulfite content was explored by using the infrared spectroscopy, and the mechanism of bleaching was further revealed. A rapid quantitative method testing the sulfite residue in tremella would be established. Moreover, the true content of sulfite content was detected by biodine drop method. The infrared spectra of the samples with different levels of residual sulfur were collected and analyzed, and the quantitative detection model based on partial least squares（PLS）was builded. The result indicated that the sulphur fumigation bleaching tremella through destroying the hydroxyl radicals of vitamin B2. Moreover, IR quantitative prediction model for sulfite residue in tremella based on PLS has been established with R of 0.980 4 and RMSECV of 0.97. This approach showed well potential to provide a rapid, nondestructive and quantitative method for detecting the sulfites residue in food.
Publication Date
6-28-2017
First Page
64
Last Page
67,134
DOI
10.13652/j.issn.1003-5788.2017.06.013
Recommended Citation
Kai, YUAN; Xichang, WANG; Long, ZHANG; Dongchen, GU; Xiaoxi, GUO; and Zhenyu, FAN
(2017)
"Rapid and quantitative determination of sulfite residue in tremella based on IR spectroscopy and PLS,"
Food and Machinery: Vol. 33:
Iss.
6, Article 13.
DOI: 10.13652/j.issn.1003-5788.2017.06.013
Available at:
https://www.ifoodmm.cn/journal/vol33/iss6/13
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