Quantitative Detection of Ascorbic Acid Additive in Flour Based on Raman Imaging Technology

Xiao-bin WANG; Xi ZHANG; Chen-zhi GUAN; Hua-xiu HONG; Shuang-gen HUANG; Chun-jiang ZHAO

doi:10.3964/j.issn.1000-0593(2021)12-3765-06

Spectroscopy and Spectral Analysis, Volume. 41, Issue 12, 3765(2021)

Quantitative Detection of Ascorbic Acid Additive in Flour Based on Raman Imaging Technology

Xiao-bin WANG^1、*, Xi ZHANG^1、1;, Chen-zhi GUAN^1、1;, Hua-xiu HONG^1、1;, Shuang-gen HUANG^{2、2; *;}, and Chun-jiang ZHAO^3、3;

Author Affiliations

¹1. School of Physics and Electronic Information, Nanchang Normal University, Nanchang 330032, China

²2. Key Laboratory of Modern Agricultural Equipment, Jiangxi Agricultural University, Nanchang 330045, China

³3. National Research Center of Intelligent Equipment for Agriculture, Beijing 100097, China

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Fig. 1. Average Raman spectra of (a) ascorbic acid and (b) flour

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Fig. 2. Average Raman spectra of flour-ascorbic acid mixed samples

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Fig. 3. Regression coefficients of PLS model

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Fig. 4. Classification image of mixed samples

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Fig. 5. Linear relationship model between the concentration of ascorbic acid and its detection pixels

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Table 1. Detection results of ascorbic acid in mixed sample images
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Table 1. Detection results of ascorbic acid in mixed sample images
浓度/% 子样品1 子样品2 子样品3 子样品4 平均
0.01 4 2 3 4 3.25
0.02 14 16 14 14 14.5
0.05 51 46 51 52 50
0.08 77 77 73 81 77
0.10 111 119 114 109 113.25
0.20 225 228 212 219 221

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Xiao-bin WANG, Xi ZHANG, Chen-zhi GUAN, Hua-xiu HONG, Shuang-gen HUANG, Chun-jiang ZHAO. Quantitative Detection of Ascorbic Acid Additive in Flour Based on Raman Imaging Technology[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3765

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