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  • Title: [Determination of polydextrose in food by high performance anion exchange chromatographic method with pulsed amperometric detector].
    Author: Li J, Wang G, Yang Y.
    Journal: Wei Sheng Yan Jiu; 2008 Mar; 37(2):225-7. PubMed ID: 18589614.
    Abstract:
    OBJECTIVE: The HPAEC-PAD method for polydextrose determination was developed based on AOAC 2000.11. METHODS: This method included water extraction, centrifugal ultrafiltration, mulienzyme hydrolysis, and anion exchange chromatography detection. The polydextrose was elated by a gradient program of 0.15 mol/L NaOH and 0.5mol/L sodium acetate in 0.15 mol/L NaOH on a CarboPAC TM PA 1 column, then detected by a gold electrode with pulse amperometric detection mold. The inject volume was 20 microl. RESULTS: The LOD and LOQ of this method were 1.69 microg/g, 5.47 microg/g, respectively. The repeatability and reproducibility were excellent, ranging from 2.10% to 6.62%. The average recovery of polydextrose in various food matrix were 92.4%-104.4%. CONCLUSION: This method could be used for polydextrose determination in foods.
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