Abstract

Abstract To evaluate the reliability of the Shaffer‐Somogyi (SS) micro‐analysis of reducing sugars, extracts of 14 dried crop samples were analyzed before and after hydrolysis in 0.05 N H 2SO4with this method, with High Performance Liquid Chromatography (HPLC) and with an enzymatic glucose and fructose assay. The values, obtained with the SS micro‐analysis were for many samples higher than those, obtained with HPLC, suggesting that other compounds than sugars, present in certain plant tissues, respond in this non‐specific method. Enzymatic analysis tended to give lower values for sugar content than HPLC. It is recommended, that routine analysis of crop samples with the SS micro‐analysis is preceeded by analysis with HPLC to assess the contribution of non‐sugars to the outcome of the former.

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