Shandong Science ›› 2021, Vol. 34 ›› Issue (6): 15-21.doi: 10.3976/j.issn.1002-4026.2021.06.003

• Traditional Chinese Medicine and Natural Active Products • Previous Articles     Next Articles

Analysis of volatile oil constitutes of guava leaves by solid phase microextraction

XU Yi-zhen()   

  1. Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Science), Jinan 250014, China
  • Received:2021-02-02 Online:2021-12-20 Published:2021-12-08

Abstract:

In this study, a method using headspace solid phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) for the analysis of volatile oil in guava leaves was developed. Several factors, including types of SPME fiber, extraction temperature, extraction time, and ionic strength of the sample solution, were optimized using single-factor optimization strategy. The optimal conditions were as follows: CAR/DVB/PDMS extraction fiber, extraction temperature of 65 ℃, extraction time of 40 min, and ionic strength of 20%. A total of 47 chemical compounds were identified, including eight types of ketones, 14 types of aldehydes, five types of esters, six types of alcohols, four types of olefins,two types of acids, and others, such as phenols. The identified components account for 93.97% of the total chemical constitutes in guava leaves, calculated using the peak area normalization method. This method provides methods and data support for the study of the medicinal value of guava leaves.

Key words: headspace solid phase microextraction, guava leaves, volatile oil, peak area normalization method, gas chromatography tandem mass spectrometry

CLC Number: 

  • R284.1