Study on Gas Chromatographic Fingerprint of Essential Oil from Flowers and Its Repellent Activities against Three Stored Product Insects.

The objective of this study was to establish the chromatographic fingerprints of the essential oil (EO) from flowers collected from various natural sites by gas chromatography (GC) combined with chemometric methods. The EO was obtained by hydrodistillation, and its chemical composition was analyzed by gas chromatography-mass spectrometry (GC-MS). Most components were identified as ketones and the relatively high-content components were fitone (38.