2.7.4. Differential metabolite screening.
SEPARATION
The PCA and PLS-DA methods of MetaboAnalyst analysis software were used to analyze the samples visually, reliably, and for statistical significance on the whole. Each point on the score plot represented a corresponding sample, and the separation between groups of samples could be seen. The VIP value represented the contribution of each measured variable to the separation between samples. The larger the VIP value, the greater the contribution. Generally, a significant difference was considered only for the VIP values >1. At the same time, a 