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Study on Steam Distillation Combined With Microwave Extraction and Anti-microbial Activities of Essential Oils From the Leaves of Elsholtzia rugulosa(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年22
Page:
137-140
Research Field:
Publishing date:

Info

Title:
Study on Steam Distillation Combined With Microwave Extraction and Anti-microbial Activities of Essential Oils From the Leaves of Elsholtzia rugulosa
Author(s):
LI Li; LI Xiaojiao; XIONG Yanhua; YANG Xiaofang
(Department of Resource and Environment,Baoshan College,Baoshan,Yunnan 678000)
Keywords:
microwave; leaves of Elsholtzia rugulosa; essential oil; anti-microbial
PACS:
-
DOI:
10.11937/bfyy.201522036
Abstract:
Taking the leaves of Elsholtzia rugulosa as test materials,and distilled water as extractant,the technology of extraction of the essential oils from the leaves of Elsholtzia rugulosa was studied to provide a reference for further study and utilization，the effect of solid-1iquid ratio，NaCl concentration，extracting time and microwave power on the extracttion of the essential oils from the leaves of Elsholtzia rugulosai was investigated using the methods of single factor test and orthogonal design test of L9(34).Meanwhile，the bacteriostatic test of resulting extract was further emulated to Escherichia coli，Bacillus subtilis and Staphylococcus aureus by filter paper method and two times dilution method.The results showed that highest extraction rate (2.01%) of the essential oils in the leaves of Elsholtzia rugulosa could be obtained under conditions of 1∶20 g/mL，the NaCl was 1% (wt%)，microwave power was 350 W，and extracting time was 30 seconds.In addition，the essential oil had certain antibacterial activity to the tested microbial.

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Last Update: 2016-01-08