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Molecules 2011, 16(5), 4318-4327; doi:10.3390/molecules16054318

Chemical Composition, and Antioxidant and Antimicrobial Activities of Essential Oil of Phyllostachys heterocycla cv. Pubescens Varieties from China

1
The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Lin’an, 311300, China
2
College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, China
*
Author to whom correspondence should be addressed.
Received: 11 April 2011 / Revised: 14 May 2011 / Accepted: 17 May 2011 / Published: 24 May 2011
(This article belongs to the Collection Bioactive Compounds)
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Abstract

The essential oils of Phyllostachys heterocycla cv. Pubescens, Phyllostachys heterocycla cv. Gracilis, Phyllostachys heterocycla cv. Heterocycla and Phyllostachys kwangsiensis leaves were obtained by steam distillation. Their chemical components were separated and identified by gas chromatography/mass spectrometry (GC/MS). Meanwhile, the effect of scavenging free radicals of essential oil was assayed by using the DPPH·method with Trolox® as control to evaluate their antioxidant capacities. Gram-positive (Staphyloccocus aureus) and Gram-negative (Escherichia coli) were selected as the indicator microorganisms to evaluate the antimicrobial activity. Antimicrobial properties were estimated by the agar diffusion method. The results show that 63 components were separated and identified by GC/MS from these varieties of bamboo leaves. cis-3-Hexenol, whose content in cv. Pubescens, Gracilis, Heterocycla and Ph. kwangsiensis was 27.11%, 24.62%, 30.51% and 34.65%, respectively, was the main constituent. The relative content of alcohol compounds in these varieties of essential oils ranged from 39.8% to 46.64%. All of the bamboo leaf essential oils possessed certain antioxidant capacity; the corresponding IC50 values were 3.1622, 4.9353, 4.2473, and 5.4746 μL/mL, respectively. Essential oils of all tested bamboo spp. were active against Staphylococcus epidermidis and E. coli, showing a positive correlation with the essential oil concentration of 50.42-300 μL/mL. The results indicated there were no significant differences among three varieties and the related species with respect to their antioxidant and antimicrobial activities. This paper provides evidence for studying the essential composition from different varieties of bamboo leaves.
Keywords: Phyllostachys heterocycla cv. Pubescens; essential oil; GC/MS; anti-oxidant; anti-microbial Phyllostachys heterocycla cv. Pubescens; essential oil; GC/MS; anti-oxidant; anti-microbial
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Jin, Y.-C.; Yuan, K.; Zhang, J. Chemical Composition, and Antioxidant and Antimicrobial Activities of Essential Oil of Phyllostachys heterocycla cv. Pubescens Varieties from China. Molecules 2011, 16, 4318-4327.

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