论文部分内容阅读
31名健康成年自愿者,男11名,年龄18—48岁,女20名,年龄34—52岁 (均系采取节育措施的育龄妇女),用同位素~(55)Fe和~(59)Fe外标食物,分两批作人体铁吸收试验。其结果为:上海生产出口的海鸥牌瓶装酱油,原有铁(15.8mg铁/100ml)的吸收率几何均数(下同)为6.95％,酱油强化铁量为121mg铁/100ml时的铁吸收率为4.36％,该种铁强化酱油再强化维生素C(按铁:维生素C=1:2克分子量)则铁的吸收率为8.25％,几乎增加一倍。以7.5ml(一餐用量)的铁强化酱油(75mg铁/100ml)含铁量为5.6mg进行烹调蔬菜,以大米为主食,该餐中总铁量为8.9mg,铁的吸收率为5.65％,铁的吸收量为0.5mg;该餐另加瘦猪肉100g,则铁的吸收率为9.69％,铁的吸收量为1.08mg,肉能促进铁吸收一倍;但在该蔬菜餐后饮用龙井绿茶150ml(1.5g干茶叶泡成)其铁的吸收率降至3.09％,铁的吸收量为0.27mg,降低近一半。因此,应用加铁量为75mg铁/100ml的铁强化酱油,如按每人每天平均酱油的消耗量为15—20ml铁吸收率为5.65％计算,则铁的吸收量为0.63—0.85mg,可以基本满足一般人群每天对铁的需要量要求。如该种铁强化酱油同时强化维生素C,以铁吸收率增加一倍计算,则可满足孕妇、乳母、月经过多妇女及正在生长发育的儿童青少年对铁的特殊需要。
31 healthy adult volunteers, 11 males, aged 18-48 years and 20 females, aged 34-52 years (all of whom were women of childbearing age who took birth control measures) were treated with isotope 55 Fe and 59 Fe External standard food, divided into two groups for human iron absorption test. The results are as follows: the seagull bottled soy sauce produced in Shanghai has an absorption coefficient of 6.95% for the original iron (15.8 mg iron / 100 ml) and iron absorption for the soy sauce-enhanced iron of 121 mg iron / 100 ml The rate of 4.36%, the iron-fortified soy sauce and then strengthen the vitamin C (iron: vitamin C = 1: 2 grams of molecular weight) the absorption rate of iron was 8.25%, almost doubled. To 7.5ml (a meal) of iron-fortified soy sauce (75mg iron / 100ml) iron content of 5.6mg cooking vegetables to rice as the staple food, the total iron content of the meal was 8.9mg, iron absorption rate of 5.65% , The absorption of iron 0.5mg; the meal plus lean pork 100g, the absorption rate of 9.69% iron, iron absorption of 1.08mg, meat can promote iron absorption; but in the vegetable after drinking Longjing 150ml of green tea (1.5g dry tea foam into) its absorption rate decreased to 3.09% iron, iron absorption was 0.27mg, reduced by nearly half. Therefore, the application of iron fortified iron 75mg iron / 100ml of soy sauce, if the average per person per day consumption of soy sauce is 15-20ml 5.65% iron absorption, then the amount of iron absorption 0.63-0.85mg, you can Basically meet the daily needs of the general population of iron requirements. If the iron fortified soy sauce while strengthening vitamin C, iron absorption rate doubled, you can meet the pregnant women, nurse, menorrhagia women and growing children and adolescents special needs of iron.