Application of Near-Infrared Spectroscopy Analysis Technology to Total Nucleosides Quality Control in the Fermented Cordyceps Powder Production Process.

As the number of principal components increases, RMSECV shows a decreasing trend.

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However, the pH value of the fermentation environment was changed due to the generation of metabolites and the utilization of nitrogen sources in the later stage of fermentation during the strain fermentation, so that the total nucleosides content showed an increasing trend in this process, and basically returned to the initial content from the strain drying process.

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