Determination of phenolic compounds by MALDI–TOF and essential oil composition by GC–MS during three development stages of Origanum majorana L.

2019 ◽  
Author(s):  
Ayda Khadhri ◽  
Intidhar Bouali ◽  
Chedia Aouadhi ◽  
Marie‐Christine Lagel ◽  
Eric Masson ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Development Stages ◽  
Maldi Tof ◽  
Origanum Majorana

scholarly journals Essential Oil from Ocimum basilicum (Omani Basil): A Desert Crop

2011 ◽  
Vol 6 (10) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Ahmed Yahya Al-Maskri ◽  
Muhammad Asif Hanif ◽  
Masoud Yahya Al-Maskari ◽  
Alfie Susan Abraham ◽  
Jamal Nasser Al-sabahi ◽  
...  
Keyword(s):  
Essential Oil ◽  
Pathogenic Fungi ◽  
Essential Oil Composition ◽  
Ocimum Basilicum ◽  
Diffusion Method ◽  
Oil Composition ◽  
Different Seasons ◽  
Dpph Scavenging ◽  
Basil Oil

The focus of the present study was on the influence of season on yield, chemical composition, antioxidant and antifungal activities of Omani basil ( Ocimum basilicum) oil. The present study involved only one of the eight Omani basil varieties. The hydro-distilled essential oil yields were computed to be 0.1%, 0.3% and 0.1% in the winter, spring and summer seasons, respectively. The major components identified were L- linalool (26.5 - 56.3%), geraniol (12.1 - 16.5%), 1,8-cineole (2.5 - 15.1%), ρ-allylanisole (0.2 - 13.8%) and DL-limonene (0.2 -10.4%). A noteworthy extra component was β- farnesene, which was exclusively detected in the oil extracted during winter and spring at 6.3% and 5.8%, respectively. The essential oil composition over the different seasons was quite idiosyncratic, in which the principal components of one season were either trivial or totally absent in another. The essential oil extracted in spring exhibited the highest antioxidant activity (except DPPH scavenging ability) in comparison with the oils from other seasons. The basil oil was tested against pathogenic fungi viz. Aspergillus niger, A. fumigatus, Penicillium italicum and Rhizopus stolonifer using a disc diffusion method, and by determination of minimum inhibitory concentration. Surprisingly high antifungal values were found highlighting the potential of Omani basil as a preservative in the food and medical industries.

Salt effects on Origanum majorana fatty acid and essential oil composition

2011 ◽  
Vol 91 (14) ◽  
pp. 2613-2620 ◽  
Author(s):  
Olfa Baâtour ◽  
Rym Kaddour ◽  
Hela Mahmoudi ◽  
Imen Tarchoun ◽  
Iness Bettaieb ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Salt Effects ◽  
Origanum Majorana

Determination of essential oil composition of Rosmarinus officinalis growing as exotic species in Kashmir Valley

2012 ◽  
Vol 47 (6) ◽  
pp. 1012-1014 ◽  
Author(s):  
Mudasir A. Tantry ◽  
Syed Shabir ◽  
Reehana Khan ◽  
Afsha Habib ◽  
Seema Akbar
Keyword(s):  
Essential Oil ◽  
Exotic Species ◽  
Essential Oil Composition ◽  
Rosmarinus Officinalis ◽  
Oil Composition ◽  
Kashmir Valley

Comparative determination of the essential oil composition in Bulgarian endemic plant Achillea thracica Velen. during the process of ex situ conservation

2017 ◽  
Vol 20 ◽  
pp. 456-461 ◽  
Author(s):  
Zhenya P. Yordanova ◽  
Maria A. Rogova ◽  
Miroslava K. Zhiponova ◽  
Milen I. Georgiev ◽  
Veneta M. Kapchina-Toteva
Keyword(s):  
Essential Oil ◽  
Ex Situ Conservation ◽  
Essential Oil Composition ◽  
Ex Situ ◽  
Oil Composition ◽  
Endemic Plant ◽  
Comparative Determination

Seasonal Variation in the Essential Oil Composition of Origanum majorana L. Cultivated in Egypt

2009 ◽  
Vol 64 (9-10) ◽  
pp. 611-614 ◽  
Author(s):  
Fathy M. Soliman ◽  
Miriam F. Yousif ◽  
Soumaya S. Zaghloul ◽  
Mona M. Okba
Keyword(s):  
Seasonal Variation ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Origanum Majorana ◽  
Main Component ◽  
Autumn And Winter ◽  
Time Of Collection

Z. Naturforsch. 64 c, 611 - 614 (2009); received March 1/30, 2009 The hydrodistilled essential oil content of Origanum majorana L. (Lamiaceae) ranged from 2.5 - 3% with the maximal value (3%) in spring. Analysis of the oil by GC/MS resulted in the identifi cation of 15, 15, 11, and 14 components in the oils prepared in spring, summer, autumn, and winter, respectively. The composition of the essential oils differed quantitatively and qualitatively according to the time of collection. Thymol (38.4%) and cis-sabinene hydrate (25.3%) were the major components in spring plants. Terpinen-4-ol (37.4%, 20.5%, 16.3%) was a major component in the summer, autumn and winter oils, respectively. cis- Sabinene hydrate (54.4%) was major in winter plants while terpinolene (43.1%) was the main component in autumn plants. Other components detected in lower amounts in all oil samples were sabinene and p-cymene (up to 7.4% and 13.9% in autumn), and α-terpinene (up to 13.3% in summer)

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