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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (4): 147-150.doi: 10.11924/j.issn.1000-6850.casb20190800561

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Effects of Different Extraction Fibers on Volatile Compounds of Pyrus bretschneideri Flowers

Ma Weihua, Li Lixin, Shen Jinshan, Wu Wenqing, Song Huailei, Zhang Xufeng, Li Jie()   

  1. Institute of Horticulture, Shanxi Academy of Agricultural Sciences, Taiyuan 030031
  • Received:2019-08-22 Revised:2019-10-14 Online:2020-02-05 Published:2020-02-08
  • Contact: Li Jie E-mail:lijie303@yeah.net

Abstract:

To understand the physiological and ecological function of pear flower scents, the volatile compounds of Pyrus bretschneideri flowers were analyzed by headspace solid phase microextraction (HS-SPME) and GC-MS. The extraction effects and characteristics of 65 μm PDMS/DVB and 50/30 μm DVB/CAR/PDMS were compared. Results showed that the number and type of volatile compounds of pear flowers detected by 65 μm PDMS/DVB and 50/30 μm DVB/CAR/PDMS extraction heads were respectively 20 and 41 species, 5 and 10 types of substances, of which, alkane had the most kinds and the highest content (7 types, 38.63%) among the volatile organic compounds detected by 65 μm PDMS/DVB extraction heads, while alkenes (7 types, 41.16%) and alcohols (7 types, 24.11%) were the main compounds detected by 50/30 μm DVB/CAR/PDMS extraction heads. According to the number, type and content of extracted compounds, the 50/30 μm DVB/CAR/PDMS extraction heads are more suitable for extracting and analyzing the volatile compounds of pear flowers.

Key words: Pyrus bretschneideri flowers, headspace solid phase microextraction, gas chromatography-mass spectrometry, extraction heads, volatile components

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