Significant correlations among the signal of each of the 283 features and the relative abundance of 43 lipophilic metabolites.

a2,4-diene alkamides. bMonoene alkamides. **Correlation is significant at the 0.01 level. *Correlation is significant at the 0.05 level.a2,4-二烯酰胺类化合物（a2,4-diene alkamides）。 b 单烯酰胺类化合物（Monoene alkamides）。 ** 相关性在0.01显著性水平上具有统计学意义。 * 相关性在0.05显著性水平上具有统计学意义。