Essential Oils from Wood, Bark, and Needles of Pinus roxburghii Sarg. from Alexandria, Egypt: Antibacterial and Antioxidant Activities

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Mohamed Zidan Mohamed Salem Hayssam M. Ali Mohammed O. Basalah
Abstract	The essential oils extracted by hydro-distillation of Pinus roxburghii wood, bark, and needles were analyzed by GC/MS, and their antibacterial and antioxidant activities were evaluated. Twenty-two, thirty-one, and twenty-eight compounds were identified in the essential oils of wood, bark, and needles, respectively. The major chemical constituents of wood's essential oil were caryophyllene (16.75%), thunbergol (16.29%), 3-carene (14.95%), cembrene (12.08%), α-thujene (10.81%), and terpinolen (7.17%). In bark, they were α-pinene (31.29%) and 3-carene (28.05%), and in needles, they were α-pinene (39%) and 3-carene (33.37%). Almost all of the essential oils were active against human pathogen bacteria, and the essential oils from bark and needles were active against the plant pathogen bacteria Ralstonia solanacearum and Pectobacterium carotovorum. Alternatively, Erwinia amylovora was resistant to all tested oils. The total antioxidant activities (TAA%) of the essential oils from wood (82 ± 2.12%), and bark (85 ± 1.24%) were higher than that of tannic acid (81 ± 1.02%), and the TAA% from the essential oil of needles (50 ± 2.24%) was lower than that of tannic acid.
Related Links	http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_4_7454_Salem_Essential_Oils_Pinus
e-ISSN	19302126
DOI	10.15376/biores.9.4.7454-7466
Journal	BioResources
Issue Number	4
Volume Number	9
Language	English
Publisher	North Carolina State University
Publisher Date	2014-01-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Biotechnology Pinus Roxburghii Essential Oil Antibacterial Activity Antioxidant Activity Wood Bark Needles
Content Type	Text
Resource Type	Article