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以成年男性居民为对象,初步探讨了居民硝酸盐摄入与尿中排出规律。平均摄入量为380～474mg/d,仅摄入最高的春季与摄入最低的夏季间有显著差异(P<0.05)。其中87.9～93.8%摄自食物,6.2～12.1%摄自水。尿中平均排出5.1～10.3g/gCr,超过摄入量。考虑可能来自蛋白质,计算相关系数,结果发现当能量摄入不足时,尿中硝酸盐排出量与植物蛋白、谷类蛋白摄入量密切相关(P<0.01);与硝酸盐摄入量相关(P<0.05);与抗坏血酸、蛋白总摄入量不相关。
Taking adult male inhabitants as object, this paper discussed the nitrate intake and urinary excretion of residents. The average intake of 380 ~ 474mg / d, only the highest intake of spring and the lowest intake of summer have significant differences (P <0.05). Of which 87.9 ~ 93.8% taken from food, 6.2 ~ 12.1% taken from water. Urine average discharge 5.1 ~ 10.3g / gCr, more than intake. Considering the possible protein and calculating the correlation coefficient, it was found that the nitrate excretion in urine was closely related to the intake of plant protein and cereal protein (P <0.01) when the energy intake was insufficient. The correlation between nitrate and nitrate intake <0.05); not related to ascorbic acid and total protein intake.