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  • Title: Quantitative determination of non-starch polysaccharides in foods using Gas Chromatography with flame ionization detection.
    Author: Ma J, Adler L, Srzednicki G, Arcot J.
    Journal: Food Chem; 2017 Apr 01; 220():100-107. PubMed ID: 27855876.
    Abstract:
    A gas chromatographic method was developed for the quantitative determination of the monosaccharides of the soluble, insoluble fractions and the total non-starch polysaccharides (NSPs) content in foods with fat contents of less than 5%. Sample preparation involved enzymatic removal of starch and acid hydrolysis of the NSP to their constituent sugars. The alditol acetate derivatives were analysed on a wide bore capillary column with detection by flame ionization. The method was accurate, with recovery of spiked samples between 93.6% and 102.7% for intra-day analysis and between 93.2% and 104.7% for inter-day analysis. Repeatability was excellent; RSD values from 0.1 to 4.4% and 0.2 to 5.7% were observed from intra-day analysis and inter-day analysis, respectively. The peaks for all neutral sugars were sharp and separation was at baseline resolution with no interfering or co-eluting peaks.
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