期刊
PHYTOCHEMISTRY LETTERS
卷 20, 期 -, 页码 252-258出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.phytol.2017.05.009
关键词
Cedrus atlantica (Endl.) Manetti ex Carriere; Pinaceae; Tocotrienolic acid; Abietane diterpene; Antimicrobial activity
资金
- ATRSS
- DGRSDT (MESRS, Algeria)
- Institut de Chimie Moleculaire de Reims (ICMR), France
The phytochemical and antimicrobial properties of the cones of Cedrus atlantica (Endl) Manetti ex Carriere were investigated. Two new compounds (1,2) and nineteen known compounds (3-21) were isolated. Their structures were established by mass spectrometry (HRESIMS), 1D, 2D NMR and by comparison with literature data. Antimicrobial activity of hydromethanolic extract against a panel of 22 bacteria and yeasts showed an interesting antimicrobial activity. All compound purified from this extract were tested against S. aureus by bioautography. MIC values of the most active compounds were determined using a serial dilution technique. The results showed strong antibacterial activity of the abietane diterpenes 10, 11, 14, 15, 16 and 17. Dehydroabietic acid (17) was the most potent against Enterococcus faecalis (MIC = 15.1 = mu g/mL), a multi-resistant commensal bacterium which can cause the fatal infections in humans.
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