Study on extraction and chemical constituents of volatile oil from the leaves of Pterocarya stenoptera C. DC

doi:10.14088/j.cnki.issn0439-8114.2021.01.025

Abstract

Abstract: To investigate the extraction process and chemical compositions of the volatile oil from the leaves of Pterocarya stenoptera C.DC,ultrasonic assisted steam distillation was used to extract the volatile oil.The effects of ultrasonic time,distillation temperature and distillation time on the extraction rate of volatile oil were studied by single factor and orthogonal experiments.The constituents of the volatile oil were analyzed and identified by gas chromatography-mass spectrometry.The results showed that the optimal extraction conditions of the volatile oil from the leaves of Pterocarya stenoptera C.DC in Henan province were as follows:ultrasonic time 30 minutes (ultrasonic power 100 W),distillation temperature 125 ℃,distillation time 7 h.The extraction rate of the volatile oil was 0.040 62%.56 chemical constituents were identified by gas chromatography-mass spectrometry,They mainly contain caryophyllene oxide (40.56%),(1S-cis)-1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-naphthalene (18.29%),caryophyllene (10.22%) and so on.This study provides a experimental basis for the utilization and further research of native plant resources.

Key words: Pterocarya stenoptera C. DC, volatile oil, extraction process, chemical constituent

CLC Number:

BO Xin-dang, YU Ke-yi. Study on extraction and chemical constituents of volatile oil from the leaves of Pterocarya stenoptera C. DC[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(1): 119-123.

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