Analysis of Volatile Components in Duchesnea Indica by Different Extraction Methods

The volatile compositions of Duchesnea indica were studied by headspace solid-phase microextraction (HS-SPME), soxhlet extraction (SE), ultrasonic assistant extraction (UAE) and steam distillation (SD) coupled with gas chromatography-mass spectrometry (GC-MS). The experimental parameters of HS-SPME, including fiber type, extraction temperature, extraction time and desorption time were investigated. 47, 32, 16 and 16 compounds were identified by HS-SPME, SD, SE and UAE extracting methods, respectively. 66 compounds were obtained in total, among which 47 compounds were first reported in Duchesnea indica. The experimental results showed that terpenoids were the most abundant compositions in HS-SPME and SD, but acids accounted for 61.44% and 69.54% of the total content obtained by SE and UAE.