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Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (3): 115-122.doi: 10.3969/j.issn.0253-2417.2019.03.016

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Component and Antibacterial Activity of Different Polar Parts of Cinnamon and Homologous Root Bark

Zuohui ZHANG1,2,3(),Xinyi QIAN2,Guangzhi HUANG2,Liangwu BI4,*()   

  1. 1. College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
    2. Guangxi GengYuan Flavor and Fragrance Co., Ltd., Dongxing 538100, China
    3. Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning 530200, China
    4. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2019-03-07 Online:2019-06-28 Published:2019-06-26
  • Contact: Liangwu BI E-mail:zhangzuohui1979@126.com;biliangwu@126.com
  • Supported by:


The petroleum ether part, ethyl acetate part, n-butanol part and water part of cinnamon and root bark were obtained by reflux extraction with 80% ethanol and systematic solvent method, using cinnamon and its homologous root bark as raw materials. Their antibacterial activities against three common pathogens(Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa) were evaluated by the filter paper method. The results indicated that the qualities, the types and contents of components of each polar parts extracted from cinnamon and root bark of the same quality were different. The contents of the main components of the two petroleum ether parts were similar, but the contents of trans-cinnamaldehyde and o-methoxycinnamaldehyde, were quite different. Flavonoids, saponins and polysaccharide were found respectively in the two ethyl acetate parts, n-butanol parts and water parts. Moreover, o-methoxy cinnamaldehyde and cinnamyl acetate were found in ethyl acetate part, D-galactose was found in water part of root bark. The petroleum ether part of cinnamon, petroleum ether part and ethyl acetate part of root bark had a certain degree of antibacterial activity against E. coli, S. aureus and P. aeruginosa. When the mass concentrations of these three parts were 500 g/L, the diameters of bacteriostasis circles for S. aureus, E. coli and P. aeruginosa were larger than(17.62±0.22), (25.21±2.09) and(12.82±0.30) mm, respectively. Ethyl acetate part of cinnamon had weaker antibacterial activity, n-butanol part and water part of both cinnamon and root bark had no antibacterial activity.

Key words: cinnamon, root bark, flavonoids, polysaccharide, antibacterial activity

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