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Molecules 2014, 19(7), 8965-8980;

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

1,2,3,* , 1,3
Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Science (CATAS), Wanning, Hainan 571533, China
Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture, Wanning, Hainan 571533, China
Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulation for Tropical Spice and Beverage Crops, Wanning, Hainan 571533, China
Author to whom correspondence should be addressed.
Received: 14 April 2014 / Revised: 15 June 2014 / Accepted: 17 June 2014 / Published: 27 June 2014
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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. View Full-Text
Keywords: Cananga odorata; volatile organic compound; flower development; HS-SPME-GC-MS Cananga odorata; volatile organic compound; flower development; HS-SPME-GC-MS

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Qin, X.-W.; Hao, C.-Y.; He, S.-Z.; Wu, G.; Tan, L.-H.; Xu, F.; Hu, R.-S. Volatile Organic Compound Emissions from Different Stages of Cananga odorata Flower Development. Molecules 2014, 19, 8965-8980.

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