Abstract: Rubus parvifolius L. (Rp) is a medicinal herb that possesses antibacterial activity. In this study, we extracted the volatile oil from the leaves of Rp to assess its antibacterial activity and analyze its chemical composition. A uniform distribution design was used to optimize the extraction procedure, which yielded 0.36% (w/w) of light yellowish oil from the water extract of Rp leaves. We found that the extracted oil effectively inhibited the growth of a wide range of Gram positive and negative bacteria, including Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumanii, Bacillus cloacae, and Klebsiella pneumoniae. We further analyzed the components contained in the hydro-distillated Rp volatile oil by gas chromatography-mass spectroscopy. Twenty nine compounds were identified, including 4-hydroxy-3-methoxystyrene (66%), 3,7,11,15-tetramethyl-2-hexadecen-1-ol (10%) and 4-tert-butylbenzoic acid (2%). Our results suggest that one or multiple constituents contained in Rp volatile oil may account for its antibacterial activity.
Keywords: Rubus parvifolius L.; volatile oil; 4-hydroxy-3-methoxystyrene; antibacterial activity
This is an open access article distributed under the
Creative Commons Attribution License which permits unrestricted use, distribution,
and reproduction in any medium, provided the original work is properly cited.
Export to BibTeX
MDPI and ACS Style
Cai, Y.; Hu, X.; Huang, M.; Sun, F.; Yang, B.; He, J.; Wang, X.; Xia, P.; Chen, J. Characterization of the Antibacterial Activity and the Chemical Components of the Volatile Oil of the Leaves of Rubus parvifolius L.. Molecules 2012, 17, 7758-7768.
Cai Y, Hu X, Huang M, Sun F, Yang B, He J, Wang X, Xia P, Chen J. Characterization of the Antibacterial Activity and the Chemical Components of the Volatile Oil of the Leaves of Rubus parvifolius L.. Molecules. 2012; 17(7):7758-7768.
Cai, Yongqing; Hu, Xiaogang; Huang, Mingchun; Sun, Fengjun; Yang, Bo; He, Juying; Wang, Xianfeng; Xia, Peiyuan; Chen, Jianhong. 2012. "Characterization of the Antibacterial Activity and the Chemical Components of the Volatile Oil of the Leaves of Rubus parvifolius L.." Molecules 17, no. 7: 7758-7768.