highly significantp ≤ 0.001
When all ketones, aldehydes, acids and lactones were separately omitted, there was a highly significant difference between the respective omission model and each recombined system ( p ≤ 0.001).
When all ketones, aldehydes, acids and lactones were separately omitted, there was a highly significant difference between the respective omission model and each recombined system ( p ≤ 0.001).