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Chemistry and Industry of Forest Products ›› 2021, Vol. 41 ›› Issue (3): 47-54.doi: 10.3969/j.issn.0253-2417.2021.03.007

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Matrix Solid-phase Dispersion Combined with GC-MS for Determination of Chemical Constituents of Essential Oil in Agarwood

Hongxia CHEN1(), Hao ZHOU1,2, Jianzhong YE1, Ran TAO1, Wenjun LI1, Chengzhang WANG1,2,*()   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; Key Lab. of Biomass Energy and Material, Jiangsu Province; Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2020-07-31 Online:2021-06-28 Published:2021-07-01
  • Contact: Chengzhang WANG E-mail:shirenyahui@126.com;wangczlhs@sina.com

Abstract:

Matrix solid-phase dispersion-gas chromatography combined with mass spectrometry(MSPD-GC/MS) analysis method for essential oil was established based on Hainan agarwood induced by biotechnological method. The MSPD conditions of extracting agarwood essential oil established by single factor test were magnesium silicate as the adsorbent, adsorbent/sample mass ratio 4:1, isopropanol as the dispersion solvent, dispersion solvent/sample ratio 4:1(mL: g) and 6 mL n-hexane/ethyl acetate 9:1(volume ratio) as the elution solvent. Under these conditions, the extraction yield of MSPD was (9.19±0.15)%, which was higher than ultrasonic assisted ether extraction (6.65±0.22)%. The chemical constituents of essential oil were analysis by GC/MS, and compared with that extracted by ultrasonic assisted ether extraction. The compositions of essential oil extracted by MSPD were similar to ultrasonic assisted ether extraction, the main constituents were 2.13% aromatic, 25.67% sesquiterpenoids, 26.85% chromones and 7.50% aliphatic compounds. The number of sesquiterpenoids in the essential oil extracted by MSPD was more than that of ultrasonic assisted ether extraction, such as γ-selinene, β-santalol, valerena-4, 7(11)-diene, α-guaiene, shyobunol and 1, 9-aristo-ladiene. Thus, the MSPD-GC/MS analysis method could truly reflect the chemical composition of agarwood essential oil, which could be used as a rapid identification method for the quality evaluation of agarwood.

Key words: agarwood, essential oil, matrix solid-phase dispersion, GC-MS, chemical constituents

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