Abstract:
:This study describes the seasonal composition and the antibacterial, antioxidant and anticholinesterase activity of the essential oil from Eugenia brasiliensis leaves. Analysis by using GC allowed the identification of 40 compounds. It was observed that the monoterpenes varied more (42%) than the sesquiterpenes (14%), and that the monoterpene hydrocarbons suffered the greatest variation throughout the year (64%). Major compounds were spathulenol in the spring (16.02 ± 0.44%) and summer (18.17 ± 0.41%), τ-cadinol in the autumn (12.83 ± 0.03%) and α-pinene (15.94 ± 0.58%) in the winter. Essential oils were tested for their antibacterial activity, and the best result was obtained from the autumn oil, with MIC = 500 μg mL(- 1) against Staphylococcus saprophyticus and Pseudomonas aeruginosa. Antioxidant activity was evaluated using DPPH, lipid peroxidation and iron-reducing power assays, as well as the anticholinesterase activity. Both tests showed a weak performance of the essential oils.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Siebert DA,Tenfen A,Yamanaka CN,de Cordova CM,Scharf DR,Simionatto EL,Alberton MDdoi
10.1080/14786419.2014.958736subject
Has Abstractpub_date
2015-02-01 00:00:00pages
289-92issue
3eissn
1478-6419issn
1478-6427journal_volume
29pub_type
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