Note on variability of water extract viscosity of rye grain from north-east regions of Poland
2001
Smulikowska, S. | Nguyen, V.C. (Polish Academy of Sciences, Jablonna (Poland). The Kielanowski Inst. of Animal Physiology and Nutrition)
In 22 samples of rye from north-eastern regions of Poland the grain weight was measured and content of crude protein determined. Samples of rye were incubated with sodium acetate bufer (WEV), or in conditions imitating in vitro digestion process - IVA (HCl-bicarbonate) and IVB (pepsin-HCL, pancreatin-bicarbonate) and viscosity of subsequent water extracts was measured. The range of obtained values was from 2.4 to 15.8 cP for WEV, from 13.6 to 240 cP for IVA and from 17.8 to 242 cP for IVB. Amongst viscosity values obtained by three methods was close correlation. They were not correlated with grain weight, but all were negatively correlated with crude protein content. The last 2 viscosity values were also correlated with insoluble fibre content in rye grain
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