Determination of essential oil quality index by using energy summation indices in an elite strain ofCymbopogon citratus (DC) Stapf [RRL(J)CCA12]

2005 ◽  
Vol 20 (2) ◽  
pp. 118-121 ◽  
Author(s):  
Ashok Kumar Shahi ◽  
Maharaj Krishan Kaul ◽  
Renu Gupta ◽  
Prabhu Dutt ◽  
Suresh Chandra ◽  
...  
Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
M Khanavi ◽  
H Hagimehdipoor ◽  
F Emadi ◽  
M Fathi ◽  
A Hadjiakhoondi

2019 ◽  
Vol 70 (6) ◽  
pp. 2015-2020
Author(s):  
Silvia Robu ◽  
Aurelia Romila ◽  
Olimpia Dumitriu Buzia ◽  
Adrian Florin Spac ◽  
Camelia Diaconu ◽  
...  

Numerous articles on Salvia officinalis L. have been published regarding the composition of their essential oil. The considerable variation found may be due to the quality of the plant material as well as to the methods used for analysis. A simple GC-MS method was developed and optimized in the QbD approach, for the determination of sage essential oils. The optimization of GC-MS analysis was performed using different mobile phase flows, injection volumes, split ratios and temperature programs. The optimized method proved to be simple and can be successfully applied for the determination of sage essential oils.


2020 ◽  
Vol 75 (11) ◽  
pp. 1451-1460
Author(s):  
Z. A. Temerdashev ◽  
V. V. Milevskaya ◽  
L. P. Ryabokon’ ◽  
N. N. Latin ◽  
N. V. Kiseleva ◽  
...  

2019 ◽  
Vol 298 ◽  
pp. 89-93 ◽  
Author(s):  
Thien Hien Tran ◽  
Thi To Quyen Ngo ◽  
Thi Kim Ngan Tran ◽  
Tri Duc Lam ◽  
Tan Phat Dao ◽  
...  

Vietnam is the world's leading country in growing and producing pepper trees. In this study, we attempted the optimization of white pepper essential oil extraction. The obtained oil was then subject to determination of constituent composition via GC-MS method. The essential oil performance achieved 3.6% by hydro-distillation process with optimal conditions (25 grams of fresh pepper, size 18, 120 minutes extraction, 130°C). A total of 23 volatile constituents were identified from the white pepper essential oil, with the major components being 27.4% of Limonene, 3-Carene 22,928%, Sabinene 17,622%, β-pinene 10.068%, α-Pinene 5.426%.


Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 260 ◽  
Author(s):  
Alessandro Calamai ◽  
Enrico Palchetti ◽  
Alberto Masoni ◽  
Lorenzo Marini ◽  
David Chiaramonti ◽  
...  

In recent years, biochar has generated global interest in the areas of sustainable agriculture and climate adaptation. The main positive effects of biochar were observed to be the most remarkable when nutrient-rich feedstock was used as the initial pyrolysis material (i.e., anaerobic digestate). In this study, the influence of solid anaerobic digestate and biochar that was produced by the slow pyrolysis of solid digestate was evaluated by comparing the differences in the crop growth performances of Pelargonium graveolens. The experiment was conducted in a greenhouse while using three different growth media (i.e., solid digestate, biochar, and vermiculite). The results indicated that: (i) the pyrolysis of solid digestate caused a reduction in the bulk density (−52%) and an increase in the pH (+16%) and electrical conductivity (+9.5%) in the derived biochar; (ii) the best crop performances (number of leaves, number of total branches, and plant dry weight) were found using biochar, particularly for plant dry weight (+11.4%) and essential oil content (+9.4%); (iii) the essential oil quality was slightly affected by the growth media; however, the main chemical components were found within the acceptable range that was set by international standard trade; and, iv) biochar induced the presence of leaf chlorosis in Pelargonium graveolens.


2012 ◽  
Vol 30 (8) ◽  
pp. 714-723 ◽  
Author(s):  
Hakan Ozkan ◽  
Derya Yanmis ◽  
Mehmet Karadayi ◽  
Tugba Bal ◽  
Ozlem Baris ◽  
...  
Keyword(s):  
E Coli ◽  

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