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两个不同品种的高粱粒被分离为果种皮、糊粉层、吸收层、胚、外层胚乳和内层胚乳六部,然后测定其中硫胺素、核黄素、尼克酸、总氮和木糖的含量。 吸收层约占全粒总重量8％,较稻米及小麦均高,故硫胺素高度集中于吸收层中,吸收层本身每克约含硫胺素45微克,占全粒硫胺素总量82％。 核黄素在种粒中集中性不大。合并吸收层和胚两部中核黄素的含量,约相等或稍高于糊粉层中核黄素的含量;合并吸收层,胚和糊粉层三者约占总含量50—60％。胚乳中核黄素的含量约占总量31％。 约71—80％的尼克酸总量集中在糊粉层中,当不同高粱品种中尼克酸含量有很大的差异时,糊粉层中的含量亦相应地表现显著的差异,其它各部的变化则无一定的规律。 胚乳重量占全粒总重77—81％,其总氮占总含量73％。 木糖的含量以果种皮最高,糊粉层其次,两部共约占总含量68％。胚乳含量最低,内外层胚乳共占总含量10％。
Two different varieties of sorghum grains were separated into six parts, ie, seed coat, aleurone layer, absorption layer, embryo, outer endosperm and inner endosperm, and then the contents of thiamine, riboflavin, nicotinic acid, total nitrogen and wood Sugar content. Absorption layer accounts for about 8% of the total weight of the whole grain, higher than rice and wheat, so thiamine is highly concentrated in the absorption layer, the absorption layer itself contains about 45 micrograms of thiamine per gram, accounting for the total amount of total thiamine 82%. Riboflavin concentration in the grain is not large. The content of riboflavin in both the absorption layer and the embryo was about equal to or slightly higher than that of the riboflavin in the aleurone layer. The combined absorption layer, embryo and aleurone layer accounted for about 50-60% of the total content. Endosperm riboflavin content of about 31% of the total. About 71-80% of the total niacin concentration is concentrated in the aleurone layer. When the content of niacin in different sorghum varieties is greatly different, the content in the aleurone layer also shows significant differences correspondingly. The changes of other departments There is no certain law. The weight of the endosperm accounts for 77-81% of the total weight of the whole grain, and the total nitrogen content thereof accounts for 73%. The highest content of xylose in the seed coat, aleurone followed, the two total about 68% of the total content. The content of endosperm is the lowest, the total content of endosperm and endosperm is 10%.