scholarly journals DETERMINATION OF YIELD AND ESSENTIAL OIL COMPOSITION OF DIFFERENT LEMON BALM (Melissa officinalis L.) GENOTYPES

2021 ◽  
Author(s):  
Duran KATAR ◽  
Nimet KATAR ◽  
Doğan AYDIN
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Melissa Officinalis ◽  
Lemon Balm

scholarly journals Changes in growth, oxidative metabolism and essential oil composition of lemon balm (Melissa officinalis L.) subjected to salt stress

2017 ◽  
Vol 11 (12) ◽  
pp. 1665-1674 ◽  
Author(s):  
Cristine Bonacina ◽  
◽  
Cláudia Borsari Trevizan ◽  
Juliana Stracieri ◽  
Tiago Benedito dos Santos ◽  
...  
Keyword(s):  
Salt Stress ◽  
Essential Oil ◽  
Oxidative Metabolism ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Melissa Officinalis ◽  
Lemon Balm

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.

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

scholarly journals LED light sources improved the essential oil components and antioxidant activity of two genotypes of lemon balm (Melissa officinalis L.)

2021 ◽  
Vol 62 (1) ◽  
Author(s):  
Tayebeh Ahmadi ◽  
Leila Shabani ◽  
Mohammad R. Sabzalian
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Light Sources ◽  
Oil Composition ◽  
Melissa Officinalis ◽  
Greenhouse Condition ◽  
Lemon Balm ◽  
Led Light ◽  
Oil Components ◽  
Led Lights

Abstract Background Nowadays, light-emitting diodes (LEDs) as a new lighting technology, have been emerged as an alternative source of light for plants due to their wavelength specificity, the narrow width of their bands, small size, solid structure, long lifetime, and low heat generation. Here we investigated the effect of different LED light sources on the essential oil components and antioxidant activity of Melissa officinalis. Two genotypes of lemon balm (Ilam and Isfahan) were subjected to four artificial light treatments, including white, red, blue, red + blue LEDs, and greenhouse light as natural lighting. Results The LED lights significantly increased shoot fresh and dry weights and leaf number in the two genotypes as compared to greenhouse condition. The results showed that the content and composition of essential oil in the two genotypes were variable under different light treatments and the total amount of compounds in the Ilam genotype was higher than the other genotype. The results of analysis of the essential oil by GC/MS indicated that the highest amount of monoterpenes in the genotypes was related to citronellal under red + blue LED lamps (15.3 and 17.2% in Ilam and Isfahan genotypes, respectively) but blue, white, and greenhouse condition had the most effect on sesquiterpenes content in both genotypes. The results showed that the observed variation between the two genotypes in the essentials oil composition was related to the relative percentage of the constituents and not to the appearance or lack of a specific component. Red + blue lighting also provided the highest radical scavenging activity in both genotypes (80.77 and 82.09% for Ilam and Isfahan genotypes, respectively). Based on principal component analyses (PCA), three main groups were identified regarding genotypes and all light treatments. Conclusions Overall, results indicated that the essentials oil composition of two genotypes of lemon balm was affected both qualitatively and quantitatively by different LED light sources; hence, LED lights might be used to improve monoterpenes, sesquiterpenes, and antioxidant activity in the selected genotypes.

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