Yande Liu, Yu Zhang, Hai Xu, Xiaogang Jiang, Junzheng Wang. Detection of Sugar Content of Pomegranates from Different Producing Areas Based on Near-Infrared Spectroscopy[J]. Laser & Optoelectronics Progress, 2020, 57(1): 013002
- Laser & Optoelectronics Progress
- Vol. 57, Issue 1, 013002 (2020)
Fig. 1. Dynamic detection device for near-infrared diffuse transmission. (a) Schematic of light path; (b) arrangement of light source
Fig. 2. Typical spectra of two types of pomegranates
Fig. 3. Spectra and appearances of samples with rough and normal surfaces. (a) Appearances; (b) spectra
Fig. 4. Score scattered plot of principal component analysis
Fig. 5. PLS-DA models. (a) PLS-DA model for calibration set; (b) PLS-DA model for prediction set
Fig. 6. PLS-DA models of sugar content of pomegranates from two different producing areas. (a) Sichuan pomegranate; (b) Yunnan pomegranate
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Table 1. Related parameters of pomegranate
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Table 2. Reconstructed results of PLS-DA model
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Table 3. Results of models optimized by different pretreatment methods
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