摘要
目的探讨海藻酸钠干预对于健康青年男性营养摄入状况的影响。方法纳入20例健康男性在校大学生作为研究对象。实验分为膳食平衡期和海藻酸盐干预期,每期各28天。膳食平衡期,一日三餐全部膳食集中供给匹配;海藻酸钠干预期则是在膳食平衡期的食谱基础上,主食馒头中添加海藻酸钠(每人每天10 g海藻酸钠)。实验比较受试者干预前后各类食物摄入和主要营养素摄入水平及血清氨基酸的变化。结果添加海藻酸钠可显著降低健康受试者的能量(-242.4 kcal)、蛋白质(-11 g)及碳水化合物(-47.3 g)的摄入量(P<0.05),但对脂肪和胆固醇的摄入水平则没有显著影响,由于海藻酸钠的添加,总膳食纤维的摄入量显著增加(+7.8 g,P<0.05);干预后,米类食物、大豆制品、禽肉和植物油的摄入没有明显变化,而面类食物(-49.6 g)、蛋类食物(-2.6 g)、深色蔬菜(-29.1 g)、浅色蔬菜(-63.8 g)和水果(-37 g)的摄入量出现显著的降低(P<0.05)。受试者血清中大部分必需氨基酸在干预后显著升高,尤其是缬氨酸由干预前的226.9μmol/L,升至干预后的466.4μmol/L(P<0.05)。结论海藻酸钠可起到膳食纤维样作用,产生饱腹感,降低使用者对于食物,特别是碳水化合物的摄食量。并且海藻酸钠对于健康青年男性的氨基酸代谢(尤其必需氨基酸的代谢)也有着潜在的影响。
OBJECTIVE To research the effect of sodium alginate intervention on the nutritional intake of healthy young men.METHODS Recruited 20 healthy university students as research subjects.The experiment was divided into two periods:the dietary balance period and the sodium alginate intervening period,and each period was expected to be 28 days.During the dietary balance period,all meals in every day of experiment are provided by the research team;during the sodium alginate intervening period,based on the diet during the balanced diet period,sodium alginate was added to the staple food steamed buns(10 g sodium alginate per person per day).The experiment compares the food intake types,main nutrient intake levels and serum amino acid changes of subjects before and after intervention.RESULTS Adding sodium alginate can significantly reduce the intake of energy(-242.4 kcal),protein(-11 g)and carbohydrates(-47.3 g,P<0.05)in healthy subjects,but there was no significant effect on the intake of fat(-2.9 g,P=0.496)and cholesterol(-14.9 mg,P=0.070),and because of the addition of alginate,the whole dietary fibers obtained a significant increase(+7.8 g,P<0.05).After the intervention of sodium alginate,there was no significant change in the intake of rice,soy products,poultry products and vegetable oil,while the intake of wheat products(-49.6 g),egg foods(-2.6 g),dark-colored vegetables(-29.1 g),light-colored vegetables(-63.8 g)and fruits(-37 g)decreased significantly(P<0.05).Most of the essential amino acids in the subjects’serum increased significantly after the intervention,especially the valine in serum rise from 226.9μmol/L to 466.4μmol/L(P<0.05).CONCLUSION Sodium alginate can play a dietary fiber-like effect,produce satiety,reduce nutrient intake of subjects,especially carbohydrates,so sodium alginate has the potential to limit energy intake and control postprandial blood sugar.And sodium alginate also has a potential positive effect on the metabolism of amino acids in healthy people,especially the metabolism of essential amino acids.
作者
曲文文
向雪松
李程
于雪
李雅杰
邢青斌
孙永叶
Qu Wenwen;Xiang Xuesong;Li Cheng;Yu Xue;Li Yajie;Xing Qingbin;Sun Yongye(School of Public Health,Qingdao University,Qingdao 266021,China;National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention,Beijing 100050,China;Beijing Institute of Nutritional Resources,Beijing 100069,China;School of Public Health,Peking University,Beijing 100191,China;Changzhi Medical College,Changzhi 046000,China)
出处
《卫生研究》
CAS
CSCD
北大核心
2021年第6期926-931,937,共7页
Journal of Hygiene Research
基金
中国营养学会-明月海藻基金(No.CNS-BMSG2020-111)
中国营养学会-振东国人体质与健康研究基金(No.CNS-ZD2019090)。
关键词
海藻酸钠
膳食纤维
膳食
能量
营养代谢
必需氨基酸
sodium alginate
dietary fiber
diet
energy
nutritional metabolism
essential amino acids
