AOAC RI ERP E-Book - DS DF

K-RINTDF.2016_11_K-RSTAR.DATA.NEW 27/09/2016 11:54 Page 20

OMAMAN-38 C: Instructions for Use Expert Review Panel Use Only September, 2017

Figure 4. Time course hydrolysis of a) Hylon VII ® , b) regular maize starch (RMS), c) native potato starch (NPS) and d) Fibersym ® by a mixture of PAA (4 KU/assay) and AMG (1.7 KU/assay), as described in McCleary et al. 20 in a shaking water bath at pH 5.2 and 37°C; I) with glass marbles and guar gum in the incubation tube; II) with no marbles or guar gum in the incubation tubes; and III) according to AOAC Method 2002.02. Samples were analysed for free D-glucose.

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Figure 5. The effect of the concentration of PAA and of AMG on the extent of hydrolysis of Hylon VII ® (a & d), RMS (b & e) and Fibersym ® (c & f) in Fisherbrand ® bottles with magnetic stirring at 170 rpm at 37°C and pH 6.0 according to the RINTDF assay format 20 . Samples analysed for free D-glucose.

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