Abstract
Raffinose family oligosaccharides (RFOs) are synthesized from sucrose and subsequent addition of galactose moieties which was provided by galactinol. Galactinol is synthesized from UDP-galactose and myo-inositol. RFOs accumulate at late stage of seed development and play important roles in seed longevity. RFOs are major components in seeds of many plant species. Here, we document a methodology for extraction and quantitative analysis of raffinose metabolism-related soluble sugars or the derivative alcohols in plant seeds. This protocol, based on high-performance liquid chromatography (HPLC), achieves the efficient separation and accurate quantification of sucrose, myo-inositol, galactinol, and raffinose within 25min of retention time.
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