结合小波压缩和APTLD的三维荧光光谱技术在掺伪芝麻油鉴别中的应用 
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Application in Identification of Adulterated Sesame Oil for Three-Dimensional Fluorescence Spectroscopy Combined with Wavelet Compression and APTLD
1 燕山大学电气工程学院, 河北 秦皇岛 066004
2 燕山大学信息科学与工程学院, 河北 秦皇岛 066004
图 & 表
图 1. Z7样品校正前后的荧光光谱。 (a)原始三维光谱;(b)校正后的三维光谱;(c)原始等高线;(d)校正后的等高线
Fig. 1. Fluorescence spectra of original and corrected Z7 samples. (a) Original three-dimensional spectral map; (b) corrected three-dimensional spectral map; (c) original contour map; (d) corrected contour map
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图 2. 三线性模型
Fig. 2. Trilinear model
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图 3. 压缩前后的Z7光谱数据。(a)压缩前;(b)压缩后
Fig. 3. Fluorescence spectral data of Z7 before and after compression. (a) Before compression; (b) after compression
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图 4. 压缩前后的Z7部分发射光谱。(a1)~(a4)压缩前;(b1)~(b4)压缩后
Fig. 4. Partial emission spectra of Z7 before and after compression. (a1)-(a4) Before compression; (b1)-(b4) after compression
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图 5. 采用APTLD算法对Z7和Z9解析的结果。(a)发射光谱;(b)激发光谱
Fig. 5. Analytical results of Z7 and Z9 with APTLD algorithm. (a) Emission spectra; (b) excitation spectra
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图 6. 采用APTLD算法对Z7和F6解析的结果。(a)发射光谱;(b)激发光谱
Fig. 6. Analytical results of Z7 and F6 with APTLD algorithm. (a) Emission spectra; (b) excitation spectra
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图 7. 采用APTLD算法对Z7、F12解析的结果。(a)发射光谱;(b)激发光谱
Fig. 7. Analytical results of Z7 and F12 with APTLD algorithm. (a) Emission spectra; (b) excitation spectra
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图 8. APTLD算法分解得到的样本中各组分的荧光强度与其配比的拟合曲线。(a) F1~F7、L1~L4中的芝麻香精组分;(b) F1~F7、L1~L4中的玉米油组分;(c) F8~F13、L5~L8中的芝麻香精组分;(d) F8~F13、L5~L8中的菜籽油组分
Fig. 8. Fitting curves between fluorescence intensity of each component obtained by APTLD algorithm and proportion of each component. (a) Sesame essence in F1-F7 and L1-L4 samples; (b) corn oil in F1-F7 and L1-L4 samples; (c) sesame essence in F8-F13 and L5-L8 samples; (d) rapeseed oil in F8-F13 and L5-L8 samples
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表 1各样本的品牌
Table1. Brand of vegetable oil samples
| Sample | Brand |
|---|
| Z1Z2Z3Z4Z5Z6Z7Z8Z9Z10Z11Z12Z13Z14Y1Y2Y3Y4Y5CJ | DamingyongzhenFulinmenHuaruiLihongMingxuanFulaiweiJinlongyuDamingyongzhenFulaiweiFulinmenJinlongyuLuhuaMingxuanDamingyongzhenWannianJinlongyuLuhuaFulinmenXiwangJindingShangwei |
|
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表 2掺伪样本中各组分的配比
Table2. Proportion of each component in adulterated oil samples
| Sample | Proportion |
|---|
| F1F2F3F4F5F6F7L1L2L3L4F8F9F10F11F12F13L5L6L7L8 | JX…Y=0…9JX…Y=0.5…5JX…Y=3…3JX…Y=4…2JX…Y=5…0.5JX…Y=6…0.5JX…Y=8…0JX…Y=4.2…7.5JX…Y=4.8…5.2JX…Y=5.2…4.2JX…Y=6.6…3.6JX…C=0.5:9JX…C=2…7JX…C=3…4JX…C=4…2JX…C=5…1JX…C=9…0.5JX…C=3.7…5.5JX…C=4.5…3.4JX…C=5.5…2.0JX…C=6.5…1.5 |
|
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表 3部分样本的压缩结果
Table3. Compression results of several analytical samples
| Sample | LCS /% | LRS /% |
|---|
| Z7F6F13 | 96.5696.9594.68 | 99.9698.9999.91 |
|
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表 4掺伪芝麻油L1~L4中各组分的预测配比及回收率
Table4. Predicted proportion and recovery rate of each component in adulterated sesame oil samples L1-L4
| Sample | Recovery ratio /%[predicted proportion] |
|---|
| APTLD | SWATLD | PARAFAC |
|---|
| Sesame essence | Corn oil | Sesame essence | Corn oil | Sesame essence | Corn oil | | L1L2L3L4 | 97.9[4.11]98.1[4.71]99.8[5.19]99.5[6.57] | 97.5[7.31]99.8[5.19]97.9[4.11]99.2[3.57] | 97.3[4.09]97.5[4.68]98.3[5.11]98.5[6.50] | 96.4[7.23]97.3[5.06]96.0[4.03]97.5[3.51] | 93.1[3.91]95.0[4.56]93.7[4.87]94.5[6.24] | 94.0[7.05]95.6[4.97]94.3[3.96]90.8[3.27] | | (ra±re) /%RMSEP | 98.8±1.50.066 | 98.6±3.30.106 | 97.9±2.80.105 | 96.8±5.20.149 | 94.1±8.10.308 | 93.7±11.40.325 |
|
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表 5掺伪芝麻油L5~L8中各组分的预测配比及回收率
Table5. Predicted proportion and recovery rate of each component in adulterated sesame oil samples L5-L8
| Sample | Recovery /%[predicted proportion] |
|---|
| APTLD | SWATLD | PARAFAC |
|---|
| Sesame essence | Rapeseed oil | Sesame essence | Rapeseed oil | Sesame essence | Rapeseed oil | | L5L6L7L8 | 97.8[3.62]96.4[4.34]99.1[5.45]98.0[6.37] | 96.7[5.32]95.9[3.26]96.5[1.93]98.0[1.47] | 97.0[3.59]95.1[4.28]98.3[5.41]96.8[6.29] | 95.8[5.27]93.8[3.19]93.5[1.87]95.3[1.43] | 86.8[3.21]89.1[4.01]90.4[4.97]90.8[5.90] | 89.1[4.90]92.6[3.15]89.0[1.78]87.3[1.31] | | (ra±re) /%RMSEP | 97.8±2.90.113 | 96.8±3.10.120 | 96.8±4.30.168 | 94.6±4.40.172 | 89.3±13.50.530 | 89.5±9.10.356 |
|
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孔德明, 李雨蒙, 崔耀耀, 张春祥, 王书涛, 吴希军. 结合小波压缩和APTLD的三维荧光光谱技术在掺伪芝麻油鉴别中的应用[J]. 光学学报, 2019, 39(3): 0330004. Deming Kong, Yumeng Li, Yaoyao Cui, Chunxiang Zhang, Shutao Wang, Xijun Wu. Application in Identification of Adulterated Sesame Oil for Three-Dimensional Fluorescence Spectroscopy Combined with Wavelet Compression and APTLD[J]. Acta Optica Sinica, 2019, 39(3): 0330004.
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