Chemical composition, antioxidant and antibacterial activities of extracts from Schinus molle wood branch growing in Egypt

• Published in: Journal of wood science Vol. 62; no. 6; pp. 548 - 561
• Main Authors: Salem, Mohamed Z. M., Zayed, Mohamed Z., Ali, Hayssam M., Abd El-Kareem, Mamoun S. M.
• Format: Journal Article
• Language: English
• Published: Tokyo Springer Japan 01.12.2016; Springer Nature B.V
• Subjects: Antioxidants; Bacillus cereus; Bacillus subtilis; Biomedical and Life Sciences; Characterization and Evaluation of Materials; Chemical composition; Dichloromethane; E coli; Escherichia coli; Essential oils; Gas chromatography; Life Sciences; Mass spectrometry; Materials Science; Methanol; Micrococcus luteus; Naphthalene; Organic chemistry; Original Article; Pruning; Pseudomonas aeruginosa; Sarcina; Schinus molle; Staphylococcus aureus; Wood Science & Technology; Egypt; Extracts; Antibacterial activity; L; Wood branch; Antioxidant activity
• ISSN: 1435-0211; 1611-4663
• DOI: 10.1007/s10086-016-1583-2

In the present work, for the first time, the chemical components of essential oils (EOs) and extracts from wood branch (WB) resulted from the tree pruning wastes of Schinus molle L. grown in Egypt were evaluated for their antioxidant and antibacterial activities. EOs, methanol (ME), dichloromethane (DCME) and water (WE) extracts as antioxidant and antibacterial activities were measured. Total phenolic and flavonoid contents as well as analysis of extracts by gas chromatography–mass spectrometry (GC–MS) were reported. The major components in EOs were α -elemol, β -pinene, and α -phellandrene, in ME were 6-(4-chlorophenyl)-3-cyano-4-( N -benzylpiperazino)-2H-pyran-2-one, and 2-naphthalene methanol, decahydro- α , α ,4a-trimethyl-8-methylene, in DCME were 12-methyl-E,E-3,13-octadecadien-1-ol, and 1,2-benzenedicarboxylic acid, dioctyl ester, and in WE were β -eudesmol, and (Z,Z,Z)-9,12,15-octadecatrienoic acid, 2,3-dihydroxypropyl ester. The highest total antioxidant activity was found with EOs (90 ± 1.23 %) and WE (86.30 ± 1.40 %). The lowest IC 50 values of 13.11 ± 3.00, and 12.66 ± 2.15 μg/mL were found with WE and EOs, respectively. EOs and WE were observed to have good antibacterial activity against Bacillus subtilis , Bacillus cereus , Staphylococcus aureus , Escherichia coli , Sarcina lutea , Pseudomonas aeruginosa , and Micrococcus luteus . In conclusion, the Schinus molle L. WB EOs and extracts might, indeed, be used as a potential source for pharmaceutical or food industries.