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Visible/near infrared spectroscopy (Vis/NIRS) appears to be a rapid and convenient nondestructive technique that can realize the qualitative analysis and quantitative analysis for many agriculture products. In this study, a novel non-destructive pattern recognition method for honey source was developed base on Visible/Near infrared Spectroscopy. The four types of honey, linden, Chinese milk vetch,...
This paper evaluated the feasibility of using visible and near infrared (Vis-NIR) spectroscopy for the non-invasive discrimination of Spirulina platensis. The reflectance spectra of Spirulina platensis culture medium were measured. Full-spectrum obtained an 86.69% correct answer rate (CAR) for the discrimination of twelve species. Several spectral wavelength variable selection algorithms were operated...
Nondestructive optical methods based on visible and near infrared reflectance spectroscopy(Vis/NIRS) have been used for estimation of physiological properties of batches of fruit and vegetable products. The objective of this study was to evaluate the application of Vis/NIRS in measuring total acidity of tomato. Reflectance spectra in the 360-1050 nm range were scanned on 200 tomato samples which were...
The potential of genetic algorithm (GA) as a new way for the variety discrimination of fragrant mushrooms was evaluated. First, the visual/near infrared spectral data ranging from 375 nm to 1025 nm were collected by a spectrometer and then analyzed by principle component analysis (PCA) for space clustering. The resulting accumulative credibility of 94.37% based on the first three principle components...
Visible and near infrared spectroscopy (Vis/NIR) combined with chemometric methods was employed to classify rice wines with different ages. Spectra of 240 wine samples (80 for each year) were collected in the Vis/NIR region (325-1075nm) in the spectroradiometer in transmission mode. Partial least squares (PLS) analysis was applied to extract the principal components (PCs) as new eigenvectors to represent...
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