Volatile Organic Compound Emissions from Different Stages of Cananga odorata Flower Development

文献类型： 外文期刊

第一作者： Qin, Xiao-Wei

作者： Qin, Xiao-Wei;Hao, Chao-Yun;He, Shu-Zhen;Wu, Gang;Tan, Le-He;Xu, Fei;Hu, Rong-Suo;Qin, Xiao-Wei;Hao, Chao-Yun;Tan, Le-He;He, Shu-Zhen;Tan, Le-He;Xu, Fei;Hu, Rong-Suo

作者机构：

关键词： Cananga odorata;volatile organic compound;flower development;HS-SPME-GC-MS

期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）

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收录情况： SCI

摘要： Headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was used to identify the volatile organic compounds (VOCs) of the different flower development stages of Cananga odorata for the evaluation of floral volatile polymorphism as a basis to determine the best time of harvest. Electronic nose results, coupled with discriminant factor analysis, suggested that emitted odors varied in different C. odorata flower development stages, including the bud, display-petal, initial-flowering, full-flowering, end-flowering, wilted-flower, and dried flower stages. The first two discriminant factors explained 97.52% of total system variance. Ninety-two compounds were detected over the flower life, and the mean Bray–Curtis similarity value was 52.45% among different flower development stages. A high level of volatile polymorphism was observed during flower development. The VOCs were largely grouped as hydrocarbons, esters, alcohols, aldehydes, phenols, acids, ketones, and ethers, and the main compound was β-caryophyllene (15.05%–33.30%). Other identified compounds were β-cubebene, D-germacrene, benzyl benzoate, and α-cubebene. Moreover, large numbers of VOCs were detected at intermediate times of flower development, and more hydrocarbons, esters, and alcohols were identified in the full-flowering stage. The full-flowering stage may be the most suitable period for C. odorata flower harvest.

分类号： O62

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