scholarly journals Relative Content of Volatile Oil and Ash in Sage Leaves and Stems**Read before Scientific Section, A. Ph. A., City of Washington meeting, 1920.

1920 ◽  
Vol 9 (6) ◽  
pp. 563-567
Author(s):  
Arno Viehoever ◽  
Joseph F. Clevenger
Keyword(s):  
Volatile Oil ◽  
Relative Content ◽  
Scientific Section

Composition and Antioxidant Activity of the Volatile Oil of Bamboo Leaves from Different Provenances

2011 ◽  
Vol 108 ◽  
pp. 320-325
Author(s):  
Hai Bing Liao ◽  
Chong Jiu Hu ◽  
Ke Yuan
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Volatile Oil ◽  
Relative Content ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Total Phenolic ◽  
Bamboo Leaves

The volatile oil of the four different bamboo leaves fromPhyllostachys violascenscv.notata,Sinobambusa tootsik(sieb.) Makino,Sasa subglabraMcClure andPleioblastus kongosanensisf.aureostriaus was obtained by steam distillation; their chemical components were separated and identified by gas chromatography-mass spectrometry (GC-MS). The relative percentage content of the components from the volatile oil was determined by area normalization method. The DPPH free radical scavenging activity (IC50) of the volatile oil was tested by the use of Trolox as a control. The experimental results show that there are 15 kinds of compounds which all simultaneity contained in the volatile oil of four different provenances of bamboo leaves. In four different provenances of volatile oil of bamboo leaves, the relative content of eugenol was obviously higher than other components, were 38.47%, 48.73%, 35.85% and 18.40% respectively. The relative content of the total phenolic were 51.96%, 51.78%, 40.06%, 22.81% respectively. The four different bamboo leaves volatile oil all have the ability of scavenging DPPH free radical and the IC50are 1.16 mg/ml, 1.44 mg/ml, 1.57 mg/ml, 1.71 mg/ml, respectively. The antioxidant activity of the essential oil has a positive correlation with the essential oil's concentration. The result of the experiments can provide reference for further research on the chemical components of different bamboo leaves volatile oil as well as for the exploration and utilization of it.

Lobular Pheasant Tail Leaf Volatile Extraction and Chemical Components of the Essential Oil Analysis

2013 ◽  
Vol 781-784 ◽  
pp. 601-605
Author(s):  
En Hua Wang ◽  
Qiu Zhang Sang ◽  
Xiao Hong Yang
Keyword(s):  
Chemical Composition ◽  
Steam Distillation ◽  
Chemical Constituents ◽  
Chemical Compounds ◽  
Volatile Oil ◽  
Relative Content ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Spectrometry Method ◽  
Composition Methods

Objective: To study the lobular pheasant tail leaf volatile chemical composition. Methods: the extraction of volatile chemical composition lobular pheasant tail blades of steam distillation, gas chromatography - mass spectrometry method for the separation and identification of its composition and relative content. Results and conclusion: 41 chemical compounds were identified. The main chemical constituents of volatile oil seeTable 1.

Extraction and Analysis of the Chemical Constituents of Volatile Oil from Albizia Bark

2013 ◽  
Vol 781-784 ◽  
pp. 596-600
Author(s):  
Yan Song ◽  
Hai Yan Wu ◽  
Xiao Hong Yang
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Constituents ◽  
Chemical Compounds ◽  
Volatile Oil ◽  
Relative Content ◽  
Gas Chromatography Mass Spectrometry ◽  
Bark Extract ◽  
Chemical Components ◽  
Spectrometry Method

Objective: To study the chemical constituents of volatile Albizia bark. Methods: the volatile chemical components of Albizia bark extract by water vapor distillation, gas chromatography - mass spectrometry method for the separation and identification of its composition and relative content. Results and conclusion: 25 chemical compounds were identified. The main chemical constituents of volatile oil in Albizia bark is 1,1-diethoxy-Ethane (23.972%), Ethyl Acetate (23.260%), Linalol (10.334%), 2-ethoxy-Butane (4.934%), D-Limonene (4.512%), L-π pinene (3.803%), Terpineol (3.126%), Ocimene (3.031%), Ethylbenzene (2.621%), Benzothiazole (2.199%), (E) -Ocimene (1.755%), Terpinolen (1.516%), Cedrene (1.471%), N-phenyl-1-Naphthalenamine (1.451%), 1-ethoxy-Pentane (1.418%), Terpinen (1.162%), o-Cymene (1.129%) et.

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