This study was carried out to know the proper pearling ratio for maximum utilizatio of barley diet fiber, especially bata-glucan. Beta-glucan content were 2.35%, 2.72% and 3.24% in pearling ratio of 75%, 70% and 65%, respectively, which means the lower of pearling ratio, the more chance for use of beta-glucan. The embryo was completely removed from barley grain in 65% pearling but it was partially removed or not removed in pearling ratio of 70% and 75%, respectively. Total diet fiber content was higher at 75% pearling ratio while beta-glucan content was the lowest. The higher level of total diet fiber in lower pearling ratio was due to relatively higher content of insoluble diet fiber. The difference of soluble fiber due to pearling ratio was negligible diet fiber. The difference of soluble fiber due to pearling ratio was negligible, however, bata-glucan content was higher in higher pearling ratio. The results implied that it is better way to lowering perling ratio for miximum use of bata-glucan in barley.
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