Variance of Volatile Component from Prunus mume f. viridicalyx flower by Different Extraction Methods

On 13th March 2023, alabastrum of Prunus mume f. viridicalyx were collected in Changxing, Zhejiang province.Volatiles were extracted by headspace-solid phase microextraction, steam distillation and supercritical carbon dioxide, and analyzed by gas chromatography-mass spectrometry (GC-MS). The results revealed that there were 57 compounds extracted from alabastrum of P. mume f. viridicalyx belonging to 9 classes, including aldehydes, alcohols, ketones, and alkenes by three extraction methods. Benzaldehyde, nonanal, farnesol, benzoic acid, α-amyrin and D-limonene were identified as the main volatile components with benzaldehyde exhibiting the highest content. A total of 21 compounds were extracted by headspace-solid phase microextraction, consisting of aldehydes, alcohols and esters.30 compoundswere extracted by steam distillation,mainly comprising esters, alkene, ketones and other water-insoluble compounds. Supercritical CO2extraction resulted 30 compounds predominantly long-chain alkane and ester compounds. The experiment demonstrated that supercritical carbon dioxide extract had higher wax content, combination of headspace-solid phase microextraction and steam distillation proved to be more suitable detecting plant aromatic volatiles.