Isolation and structural elucidation by 2D NMR of planteose, a major oligosaccharide in the mucilage of chia (Salvia hispanica L.) seeds

Xiaohui Xing, Yves S.Y. Hsieh, Kuok Yap, Main E. Ang, Jelle Lahnstein, Matthew R. Tucker, Rachel A. Burton, Vincent Bulone

研究成果: 雜誌貢獻文章同行評審

27 引文 斯高帕斯(Scopus)

摘要

An oligosaccharide was isolated in high purity and excellent yield from the water-extractable mucilage of chia (Salvia hispanica L.) seeds using an optimized solid-phase extraction method. LC–MS analysis showed that the compound presents a molecular mass of 504 Da and trifluoroacetic acid hydrolysis revealed that it consists of galactose, glucose and fructose. Glycosidic linkage analysis showed that the oligosaccharide contains two non-reducing ends corresponding to terminal glucopyranose and terminal galactopyranose, respectively. The oligosaccharide was identified as planteose by the complete assignment of a series of 2D NMR spectra (COSY, TOCSY, ROESY, HSQC, and HMBC). The significance of the presence of planteose in chia seeds is discussed in the context of nutrition and food applications.

原文英語
頁(從 - 到)231-240
頁數10
期刊Carbohydrate Polymers
175
DOIs
出版狀態已發佈 - 11月 1 2017
對外發佈

ASJC Scopus subject areas

  • 有機化學
  • 聚合物和塑料
  • 材料化學

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