scholarly journals Artemisia dracunculus Essential Oil Chemical composition and antioxidant properties

2019 ◽  
Vol 70 (1) ◽  
pp. 59-62 ◽  
Author(s):  
Ariadna Petronela Fildan ◽  
Ioan Pet ◽  
Daniela Stoin ◽  
Gabriel Bujanca ◽  
Alexandra Teodora Lukinich-Gruia ◽  
...  

Free radical scavenging activity, total phenolic content and the chemical composition of the essential oil isolated by steam distillation from Artemisia dracunculus L. was investigated. The isolation yield was 0.24% (v/w) based on the fresh plant material (leaves). GC-MS investigation identified 21 components, accounting 99.93% of the total amount. The major components were sabinene (42.38%), isoelemicin (12.91%), methyl eugenol (9.09%), elemicin (7.95%) and beta-ocimene (6.46%). The free radical scavenging activity of the essential oil of Artemisia dracunculus L. was evaluated in vitro by the DPPH assay (IC50 = 0.730 � 0.213 mg/mL), BHA and alpha-tocopherol were used as a positive control. The total phenolic content of the tarragon essential oil was evaluated by the Folin-Ciocalteu method (GAE = 0.451 � 0.001 mg/g sample). In view of these data, we consider that tarragon essential oil could represent a new antioxidants source as a reliable option to reduce the usage of synthetic additives.

2019 ◽  
Vol 8 (6) ◽  
pp. 94
Author(s):  
Y. Riswahyuli ◽  
Abdul Rohman ◽  
Francis M. C. S. Setyabudi ◽  
Sri Raharjo

Several wild honey samples collected from seven different regions in Indonesia were investigated to determine their total phenolic content, flavonoid content, and free radical scavenging activity by analyzing the 1,1-diphenyl-2-picrylhydrazyl (DDPH) radical and phenolic profile. Rutin, (+)-catechin, ferulic acid, and galangin were found to be the major phenolic compounds of Indonesia wild honey. The total phenolic content significantly correlated with the total flavonoid content (p=0.000) and the percentage of DPPH radical scavenging activity (p=0.000). Results indicated that there are different polyphenol profiles among the different regions.


Author(s):  
Jigisha Anand ◽  
Shanu Chaudhary ◽  
Nishant Rai

 Objective: The present study aims at screening phytochemicals present in Lantana camara leaves and flower extracts.Methods: Methanolic extracts of leaves and flower of L. camara were prepared by the solvent extraction method. The preliminary qualitative photochemical analysis of leaves and flower extract was done following standard procedures. For quantitative phytochemical screening, total phenolic content (TPC), total flavonoid content (TFC), and free radical scavenging activity of L. camara was estimated.Results: The preliminary qualitative analysis showed the presence of flavonoids, phenols, terpenoids, anthocyanins, carbohydrates, and proteins in the methanolic extracts of Lantana leaves and flower, while saponins, glycosides, and alkaloids were not detected in both the extracts. Quantitative assays were done for determination of TPC, TFC, and free radical scavenging activity of L. camara. The methanolic extract of Lantana flowers depicted highest TFC (15.76±0.005 mg of hydrated catechin equivalent/ml of sample) and TPC (17±0.005 mg of Gallic acid equivalents equivalent/ml of sample), while both leaves and flower extracts revealed extortionately high 2, 2-diphenyl-1-picrylhydrazyl free radical scavenging activity.Conclusion: The present work depicted that L. camara leaves and flowers are rich in antioxidant activity and have a promising application as nutraceuticals for herbal drug formulations.


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