Antioxidant phenolic compounds from Chinese white olive (Canarium album L.)

Authors

  • Zhaobao Xiang Key Laboratory of Natural Medicine Research of Chongqing Education Commission, Chongqing Technology and Business University, Chongqing-400067, China
  • Xiaoling Wu Academic Quality Inspection and Evaluation Office, Chongqing Technology and Business University, Chongqing 400067, China
  • Xingyu Liu College of Bioengineering, Chongqing University, Chongqing- 400044, China
  • Gang Chen Key Laboratory of Natural Medicine Research of Chongqing Education Commission, Chongqing Technology and Business University, Chongqing-400067, China

DOI:

https://doi.org/10.3329/bjb.v49i4.52535

Keywords:

Chinese white olive, Phenolic compounds, Chromatography separation

Abstract

To find antioxidant compounds from Chinese white olive (CWO) based on bioassay-guided method, the ethanol extract and corresponding 4 fractions were evaluated for their antioxidant activities by DPPH and ABTS assay. The results revealed that the AcOEt fraction had the most potent antioxidant activity. Further, six compounds isolated from the AcOEt fraction, and their structure were identified as (-)-epicatechin gallate (i), ellagic acid (ii), gallic acid (iii), (-)-epigallocatechin (iv), (-)-epigallocatechin gallate (v) and kaempferol (VI) by MS and NMR spectrum. Compounds I, IV and V were isolated and identified from CWO for the first time. All the compounds (I-VI) exhibited potent antioxidant activity. Among them, compound III showed best antioxidant activity in both DPPH and ABTS+ assay. The phenolic compounds from CWO with potent antioxidant activities were responsible for the antioxidant activity of CWO extract.

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Published

2020-12-31

How to Cite

Xiang, Z., Wu, X., Liu, X., & Chen, G. (2020). Antioxidant phenolic compounds from Chinese white olive (Canarium album L.). Bangladesh Journal of Botany, 49(4), 1029–1035. https://doi.org/10.3329/bjb.v49i4.52535

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Section

Articles