摘要：The study was carried out to investigate the extraction and fractionation of insoluble fibers from two varieties of foxtail millets. Moreover, the glucose uptake of the purified extracts was assayed. The results showed that Neutral Detergent Insoluble Fibers (NDIF) were as high as 54.59 and 55.37% for white and the yellow foxtail millets, respectively. Moreover, while the white samples yielded 15.44 11.56 and 27.00% as the respective insoluble, soluble, total dietary fibers that of the yellow offered 97, 15.91 and 27.88% as the insoluble, soluble and total dietary fibers in that order. White foxtail millet had the highest total hemicellulose (52.8%) content followed by yellow foxtail (50.34%). Cellulose and lignin were (32.41 and 31.34%) and (2.89 and 3.07%), respectively. The pectin substances were estimated to be lowest in both samples (0.806 and 0.906%). Glucose uptake was varied from 12.43 to 98.22% and those for PIM-Y from 14.36 to 98.57% and the increase was dependent on both glucose and sample concentrations. This founding fractionation procedure suggested that these purified insoluble fibers could be incorporate as low calorie bulk ingredients in high fiber foods production to reduce calorie level and help to control blood glucose levels.
