Seasonal and Circadian Study of a Thymol/γ-Terpinene/p-Cymene Type Oil of Ocimum gratissimum L. and Its Antioxidant and Antifungal Effects
Ocimum gratissimum oil is used for various medicinal, food and cosmetic applications due to its high chemical variability. Local businesses have considered the economic exploitation of this plant. A specimen sampled at São Luís, MA, Brazil, with thymol and derivatives oil, was subjected to seasonal and circadian study, and to antifungal and antioxidant assays. It was possible to observe that the weather conditions showed a direct influence on the oil yield and variation of its constituents, mainly oxygenated monoterpenes and monoterpene hydrocarbons, with the predominance of thymol, γ-terpinene, and p-cymene. Principal component analysis (PCA) was able to justify the oil chemical variability of the seasonal (70%) and circadian (86%) study. Oil displayed inhibition for the fungus Corynespora cassiicola at a concentration above 0.3 µL mL-1, and it showed a more significant activity by comparison to thymol. Using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical assay, the oil antioxidant activity was about 75% of thymol.
Main Authors: | Castro,Joaquim A. M. de, Monteiro,Odair S., Coutinho,Denise F., Rodrigues,Antonia A. C., Silva,Joyce K. R. da, Maia,José G. S. |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2019
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000500930 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Antifungal activity from Ocimum gratissimum L. towards Cryptococcus neoformans
by: Lemos,Janine de Aquino, et al.
Published: (2005) -
Effects of Lippia sidoides essential oil, thymol, p-cymene, myrcene and caryophyllene on rat sciatic nerve excitability
by: Barbosa,R., et al.
Published: (2017) -
Antifungal activity of essential oil isolated from Ocimum gratissimum L. (eugenol chemotype) against phytopathogenic fungi
by: Faria,Terezinha de Jesus, et al.
Published: (2006) -
Antibacterial activity of Ocimum gratissimum L. essential oil
by: Nakamura,Celso Vataru, et al.
Published: (1999) -
Terpinen-4-ol, tyrosol, and β-lapachone as potential antifungals against dimorphic fungi
by: Brilhante,Raimunda Sâmia Nogueira, et al.
Published: (2016)