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Water-Soluble Polysaccharides from Leaves of Abelmoschus esculentus: Purification, Characterization, and Antioxidant Activity

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Chemistry of Natural Compounds Aims and scope

Two water-soluble polysaccharides were obtained from the leaves of Abelmoschus esculentus using aqueous extraction and purification with DEAE-52 and Sephadex G-100. AEP-11 (1.9 × 105 Da) consisted of D-arabinose, D-xylose, D-glucose, D-mannose, and D-galactose in a 2.9:3.1:0.3:0.4:3.4 ratio. AEP-22 (1.6 × 106 Da) consisted of D-arabinose, xylose, D-mannose, and galactose in a 4.7:0.8:0.6:3.9 ratio. AFM and Congo red indicated that the enhanced flexibilities of AEP-11 and AEP-22 chains could lead to agglomerated morphologies and may further confirm random coils instead of triple helical conformations. CD revealed the presence of disordered structure in AEP-22 compared with the ordered structure in AEP-11. In antioxidant activity assay, AEP, AEP-11, and AEP-22 all exhibited strong radical-scavenging capacities (AEP > AEP-11 > AEP-22) and obvious reducing power.

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Authors and Affiliations

  1. School of Food and Biological Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China

    Q. Li, Y. Zou, W. W. Feng & W. Wang

  2. School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China

    T. Zhao, J. Huang, X. S. Wu & L. Q. Yang

  3. School of Pharmacy, Jiangsu University, 212013, Zhenjiang, P. R. China

    S. Q. Bai

  4. School of Environment, Jiangsu University, 212013, Zhenjiang, P. R. China

    G. H. Mao & X. Y. Wu

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  1. Q. Li
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  3. S. Q. Bai
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  4. G. H. Mao
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Corresponding authors

Correspondence to L. Q. Yang or X. Y. Wu.

Additional information

Published in Khimiya Prirodnykh Soedinenii, No. 3, May–June, 2017, pp. 351–354.

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Li, Q., Zhao, T., Bai, S.Q. et al. Water-Soluble Polysaccharides from Leaves of Abelmoschus esculentus: Purification, Characterization, and Antioxidant Activity. Chem Nat Compd 53, 412–416 (2017). https://doi.org/10.1007/s10600-017-2011-6

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  • DOI: https://doi.org/10.1007/s10600-017-2011-6

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