Litsea glutinosa(Lour.) C.B. Rob., A New Source of Essential Oil from Northeast India

1996 ◽  
Vol 8 (5) ◽  
pp. 553-556 ◽  
Author(s):  
S. N. Choudhury ◽  
R. S. Singh ◽  
Anil C. Ghosh ◽  
Piet A. Leclercq
Keyword(s):  
Essential Oil ◽  
Northeast India ◽  
Litsea Glutinosa

scholarly journals ANTIBACTERIAL AND ANTIOXIDANT ACTIVITIES OF STEM BARK ESSENTIAL OIL CONSTITUENTS OF LITSEA GLUTINOSA C. B. ROB.

2016 ◽  
Vol 8 (12) ◽  
pp. 258
Author(s):  
Arunodaya H. S. ◽  
Krishna V. ◽  
Shashikumar R. ◽  
Girish Kumar K.
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Stem Bark ◽  
Diffusion Method ◽  
Vibrio Cholera ◽  
Litsea Glutinosa ◽  
Β Carotene ◽  
Mic Value

<p><strong>Objective: </strong>To evaluate the chemical composition, antibacterial and antioxidant properties of stem bark essential oil of <em>Litsea glutinosa </em>C. B. Rob.</p><p><strong>Methods: </strong>The essential oil isolated from stem bark of <em>L. glutinosa </em>and their chemical composition was analyzed by gas chromatography coupled with mass spectrometry detector. The <em>in vitro </em>antibacterial activity of the stem bark essential oil was investigated against eight human pathogenic bacterial clinical isolates using agar disc diffusion method and MIC value was determined by modified resazurin microtitre-plate assay. The antioxidant activity of essential oil was measured by 2, 2-diphenyl-1-picrylhydrazyl radical (DPPH), 2, 2-azinobis-3-ethylbenzothiazoline-6-sulphonate radical cation (ABTS) and β-carotene bleaching assay.</p><p><strong>Results: </strong>GC-MS analysis of stem bark essential oil resulted in the identification of 37 compounds, off which 9,12-octadecadienoic acid (62.57%), hexadecanoic acid (12.68%), stigmast-5-en-3-ol (6.87%) and vitamin E (2.51%) were the main constituents representing 84.63% of the oil. The determination of <em>in vitro</em> antibacterial activity of stem bark essential oil resulted in significant inhibition zone (15.00±0.57 mm) and MIC value (0.15±0.15×10<sup>-2</sup> mg/ml) against the pathogenic bacteria <em>Vibrio cholera</em> followed by <em>Pseudomonas aeruginosa</em> and <em>Salmonella typhi. </em>The results of DPPH radical scavenging (IC<sub>50</sub>:4.540±0.06 µg/ml), ABTS (IC<sub>50</sub>:256.02±0.06 µg/ml) and β-carotene bleaching assay (%I: 78.51±0.42 <strong>%</strong>) showed significant <em>in vitro</em> antioxidant property.</p><p><strong>Conclusion: </strong><em>L. glutinosa</em> stem bark essential oil showed potential antibacterial activity against the <em>Vibrio cholera</em>. The results of this investigation supported the ethnomedical claim of essential oil as a demulcent, antidiarrheal and antioxidant drug.</p>

Influence of Cultivar and Maturity at Harvest on the Essential Oil Composition, Oleoresin and [6]-Gingerol Contents in Fresh Ginger from Northeast India

2013 ◽  
Vol 61 (17) ◽  
pp. 4145-4154 ◽  
Author(s):  
Challa Ravi Kiran ◽  
Ashok Kumar Chakka ◽  
K. P. Padmakumari Amma ◽  
A. Nirmala Menon ◽  
M. M. Sree Kumar ◽  
...  
Keyword(s):  
Essential Oil ◽  
Northeast India ◽  
Essential Oil Composition ◽  
Oil Composition

Essential Oil of the Rhizome ofCurcuma zedoaria(Christm.) Rose. Native to Northeast India

2006 ◽  
Vol 18 (2) ◽  
pp. 154-155 ◽  
Author(s):  
Jubilee Purkayastha ◽  
Subhan C. Nath ◽  
Naja Klinkby
Keyword(s):  
Essential Oil ◽  
Northeast India

Essential Oil ofMachilus bombycinaKing from Northeast India

1995 ◽  
Vol 7 (2) ◽  
pp. 199-201 ◽  
Author(s):  
S. N. Choudhury ◽  
Piet E. Leclercq
Keyword(s):  
Essential Oil ◽  
Northeast India

The Chemical Composition of the Essential Oil ofCymbopogon flexuosus(Steud) Wats. Growing in Northeast India

1994 ◽  
Vol 6 (1) ◽  
pp. 85-87 ◽  
Author(s):  
Subhan C. Nath ◽  
Bhola N. Saha ◽  
Dina N. Bordoloi ◽  
Raj K. Mathur ◽  
Piet A. Leclercq
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Northeast India

The Essential Oil of a Variant ofCymbopogon flexuosus(Nees ex Steud) Wats. from Northeast India

1999 ◽  
Vol 11 (3) ◽  
pp. 381-385 ◽  
Author(s):  
Kamini K. Sarma ◽  
Subhan C. Nath ◽  
Piet A. Leclercq
Keyword(s):  
Essential Oil ◽  
Northeast India

scholarly journals Aromatic plants of Bangladesh : Essential oils of leaves and fruits of Litsea glutinosa (Lour.) C.B. Robinson

1970 ◽  
Vol 37 (1) ◽  
pp. 81-83 ◽  
Author(s):  
Jasim Uddin Chowdhury ◽  
Md Nazrul Islam Bhuiyan ◽  
Nemai Chandra Nandi
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Key Words ◽  
Lauric Acid ◽  
Volatile Oil ◽  
Aromatic Plants ◽  
Ms Analysis ◽  
Litsea Glutinosa ◽  
Fruit Oil

The volatile oil constituents of leaf- and fruit in Litsea glutinosa (Lour.) C.B. Robinson, identified by GC-MS analysis, was 83 and 33, respectively. The major constituents of leaf were phytol (22.42%), caryophyllene (21.48%), thujopsene (12.17%) and β-myrcene (5%); while those of the fruit oil contained lauric acid (44.84%), 3-octen-5-yne, 2,7-dimethyl (28.72%), α-cubebene (6.84%) and caryophyllene (5.04%). Key words: Litsea glutinosa, Essential oil, GC-MS, Phytol, Lauric acid doi:10.3329/bjb.v37i1.1568 Bangladesh J. Bot. 37(1): 81-83, 2008 (June)

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