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Issue 10, 2010
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Similarity analysis between cultivars of litchi (Litchi chinensis Sonn.) leaf by structural characteristics of polysaccharides

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Abstract

Litchi leaf has been used as a traditional Chinese medicine due to its unique pharmacological actions. There are more than two hundred of cultivars distributed over the world. Application of polysaccharide structural characteristics to analyse the similarity between cultivars is a novel and interesting attempt. In this work, litchi leaves (cv. ‘Nandao seedless fruit’, ‘Dingxiang’ and ‘Ziniangxi’) were selected to extract water-soluble polysaccharides (LLPs I and II). LLP I consisted of Ara, Rha, Gal and Glc, while LLP II was of Ara, Rha and Gal. However, the relative molar percentages of each monosaccharide between cultivars were different. The glycosidic linkages were determined by gas chromatography/mass spectrometry. Gal had two linkages of →3)-Gal-(1→ and →6)-Gal-(1 →. Ara and Rha were found to be linked as →5)-Ara-(1→ and →3)-Rha-(1→, while Glc appeared to be Glc-(1→ and →6)-Glc-(1 →. LLPs I and II belonged to type II arabinogalactans. The hierarchical clustering analysis of structural characteristics of LLPs I and II showed that ‘Nandao seedless fruit’ and ‘Dingxiang’ had a good similarity. This method was an efficient way to analyse the similarity between cultivars of litchi leaf.

Graphical abstract: Similarity analysis between cultivars of litchi (Litchi chinensis Sonn.) leaf by structural characteristics of polysaccharides

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Publication details

The article was received on 17 May 2010, accepted on 02 Jul 2010 and first published on 19 Aug 2010


Article type: Paper
DOI: 10.1039/C0AY00315H
Anal. Methods, 2010,2, 1456-1460

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    Similarity analysis between cultivars of litchi (Litchi chinensis Sonn.) leaf by structural characteristics of polysaccharides

    Y. Chen, H. Luo, M. Zhu and A. Gao, Anal. Methods, 2010, 2, 1456
    DOI: 10.1039/C0AY00315H

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