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Excited respectively by the light with wavelengths of 300, 400, 440 and 380 nm, the fluorescence spectra of synthetic food color ponceau 4R, amaranth, allurea red and industrial dye Sudan Ⅳ have been measured. For each sample, 60 emission wavelength values were selected. The fluorescence intensity corresponding to the selected wavelength was used as the network characteristic parameters, a probabilistic neural network for kind identification was trained and constructed. It was employed to identify the 32 kinds of color solution samples. Because the fluorescence spectra of these colors overlap, the identification rate is low. In order to solve this problem, a derivative fluorescence spectroscopy was introduced. The derivative fluorescence data was used as the network characteristic parameters, a probabilistic neural network was constructed and was employed to identify colors. The identification rate is up to 100%. Based on this, a new method is presented, which combines the derivative fluorescence spectroscopy and probabilistic neural network, and can identify synthetic colors easily, quickly and accurately. This method can provide support for food safety supervision and management.
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Keywords:
- synthetic colors /
- fluorescence spectra /
- probabilistic neural network /
- kind identification
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[2] Ma W, Fu L, Liu S F, Zeng Q C, Xu S W, Wang H B 2008 Sci. Technol. Food Indust. 29 198 (in Chinese)[马 微、付 丽、刘世福、曾庆才、许世伟、王海波 2008 食品工业科技 29 198]
[3] 1188 295
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[8] Pedro L L A, Leticia L M, Luis M D L R 2002 Electroanalysis 14 197
[9] Erdal D, Emine B, Murat K, Feyyaz O 2002 Talanta 58 579
[10] Katerina S M, Christina F S, Nikolaos S T 2007 Analyt. Chim. Acta 583 103
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[12] Panagiotis A, Charlotta T 2008 Talanta 74 1218
[13] Chailapakul O, Wonsawat W, Siangproh W, Grudpan K, Zhao Y F, Zhu Z W 2008 Food Chem. 109 876
[14] Florin S, Augustin C M, Costel S 2008 J. Chromatograph. A
[15] María J C, Agustina V S, Natalia E L, Mariano G, Maria S D N, Beatriz S F B, Héctor C G 2009 J. Chromatograph. A 1216 7063
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[17] Liu Y, Song C Y, He W L, Luo X S, Lu J, Ni X W 2007 Acta Phys. Sin. 56 2962 (in Chinese) [刘 莹、宋春元、何文亮、骆晓森、陆 建、倪晓武 2007 56 2962]
[18] Liu Y, Song C Y, Luo X S, Lu J, Ni X W 2007 Chin. Phys. 16 1300
[19] Peng Y, Li S F, Zhang Q Y, Li Y G, Xu L 2007 Acta Phys. Sin. 56 7286 (in Chinese)[彭 扬、李善锋、张庆瑜、李毅刚、徐 雷 2007 56 7286]
[20] Zhang Z G 2008 Acta Phys. Sin. 57 5823 (in Chinese)[张治国 2008 57 5823]
[21] Liu Y, Ni X W 2009 Acta Phys. Sin. 58 3572 (in Chinese)[刘 莹、倪晓武 2009 58 3572]
[22] Specht D F 1990 Neur. Network. 3 109
[23] Shen M J 2009 J. Math. Med. 22 92 (in Chinese)[申明金 2009 数理医药学杂志 22 92]
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[1] Pang N N, Bai Y, Liu H W 2009 Univ. Chem. 24 24 (in Chinese) [庞楠楠、白 玉、刘虎威 2009 大学化学 24 24]
[2] Ma W, Fu L, Liu S F, Zeng Q C, Xu S W, Wang H B 2008 Sci. Technol. Food Indust. 29 198 (in Chinese)[马 微、付 丽、刘世福、曾庆才、许世伟、王海波 2008 食品工业科技 29 198]
[3] 1188 295
[4] Zhao G H, Zhang P Z 2009 Food Res. Develop. 30 135 (in Chinese)[赵广河、张培正 2009 食品研究与开发 30 135]
[5] Florian C S, Jan T, Reinhold C 2006 Food Chem. 94 296
[6] Gergely C K, Esther F, Tibor C, Juan A V 2000 J. Chromatograph. A896 61
[7] Sacide A, Suna T 2002 J. Food Compos. Analys. 15 667
[8] Pedro L L A, Leticia L M, Luis M D L R 2002 Electroanalysis 14 197
[9] Erdal D, Emine B, Murat K, Feyyaz O 2002 Talanta 58 579
[10] Katerina S M, Christina F S, Nikolaos S T 2007 Analyt. Chim. Acta 583 103
[11] Joseph S 2000 J. Chromatograph. A880 129
[12] Panagiotis A, Charlotta T 2008 Talanta 74 1218
[13] Chailapakul O, Wonsawat W, Siangproh W, Grudpan K, Zhao Y F, Zhu Z W 2008 Food Chem. 109 876
[14] Florin S, Augustin C M, Costel S 2008 J. Chromatograph. A
[15] María J C, Agustina V S, Natalia E L, Mariano G, Maria S D N, Beatriz S F B, Héctor C G 2009 J. Chromatograph. A 1216 7063
[16] Chen G Q, Wu Y M, Wang J, Zhu T, Gao S M 2009 Spectrosc. Spectr. Analys. 29 2518 (in Chinese)[陈国庆、吴亚敏、王 俊、朱 拓、高淑梅 2009 光谱学与光谱分析 29 2518]
[17] Liu Y, Song C Y, He W L, Luo X S, Lu J, Ni X W 2007 Acta Phys. Sin. 56 2962 (in Chinese) [刘 莹、宋春元、何文亮、骆晓森、陆 建、倪晓武 2007 56 2962]
[18] Liu Y, Song C Y, Luo X S, Lu J, Ni X W 2007 Chin. Phys. 16 1300
[19] Peng Y, Li S F, Zhang Q Y, Li Y G, Xu L 2007 Acta Phys. Sin. 56 7286 (in Chinese)[彭 扬、李善锋、张庆瑜、李毅刚、徐 雷 2007 56 7286]
[20] Zhang Z G 2008 Acta Phys. Sin. 57 5823 (in Chinese)[张治国 2008 57 5823]
[21] Liu Y, Ni X W 2009 Acta Phys. Sin. 58 3572 (in Chinese)[刘 莹、倪晓武 2009 58 3572]
[22] Specht D F 1990 Neur. Network. 3 109
[23] Shen M J 2009 J. Math. Med. 22 92 (in Chinese)[申明金 2009 数理医药学杂志 22 92]
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