アワ(Setaria italica Beauv.) 種子および精白粒中のシトスタノールの定量

Abstract

From the nutritional point of view, it is known that sitostanol inhibits cholesterol absorption and lowers the level of serum cholesterol. The sitostanol content in Setaria italica Beauv. seeds and milled grain lipids was measured by GC analysis. The result showed that each sample had a high content of sitostanol, ranging from 13 to 41mg/100g seeds or milled grains (27.6mg, average, n=9). No difference was found in sitostanol content between seeds and milled grains, suggesting that sitostanol is not localized in the aluerone layer, but distributed uniformly in the seeds. It was also found that sitostanol occurred mainly in free lipid. Nutritionally, S. italica milled grains are good food materials.