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[大学食堂提供餐食中的常量营养素、纤维、脂肪酸和矿物质]

[Macronutrients, fiber, fatty acids and minerals in meals served in a university dining room].

作者信息

Alfonzo G C, Cioccia A M, Hevia P

机构信息

Universidad de los Andes, Mérida-Venezuela, Universidad Simón Bolívar, Caracas-Venezuela.

出版信息

Arch Latinoam Nutr. 2001 Jun;51(2):151-60.

Abstract

We studied the nutritional quality of six lunch menus offered in a university's dining room located in Caracas City. Each of these menus included soup, main dish, salad, bread and dessert. The results showed that each lunch offered 15 to 20 different kinds of foods. Comparing the results of the chemical analysis of the edible part of these lunch menus with the requirements of the students users of the university dining room, indicated that on the average, they offered 37% and 57% of the energy and protein requirements, 30% to 50% of the iron requirements and a substantial amount of dietary fiber. Their fat concentration, according to the dietary habits of the venezuelan population, was low and ranged from 15% to 25% of the total calories. The analysis of the fatty acids present in two of the six studied menus, showed that the proportion of saturated: monoinsaturated: polyinsaturated was approximately 2:1:1. Despite the predominance of the saturated, the proportion of the total calories present in these lunch menus, provided by these fatty acids, was on the average less than 10%. In addition, these meals offered more sodium than potassium and the calculated amount of sodium chloride they provided, was close to the total amount recommended to be consumed in a day. In general, the results of this study, showed that the lunch offered by this university dining room can fulfill an important proportion of the students' nutritional requirements, providing at the same time a meal adjusted to modern nutritional guidelines for good health. The results also emphasize the advantages of the traditional Venezuelan food, since the Venezuelan national plate, had the least amount of fat and salt of all the menus here analyzed.

摘要

我们研究了位于加拉加斯市一所大学餐厅提供的六种午餐菜单的营养质量。这些菜单中的每一种都包括汤、主菜、沙拉、面包和甜点。结果显示,每份午餐提供15至20种不同的食物。将这些午餐菜单可食用部分的化学分析结果与该大学餐厅学生用户的需求进行比较,结果表明,平均而言,它们提供了能量需求的37%和蛋白质需求的30%至50%,还有大量的膳食纤维。根据委内瑞拉人群的饮食习惯,它们的脂肪含量较低,占总热量的15%至25%。对六种研究菜单中的两份菜单中存在的脂肪酸进行分析,结果表明饱和脂肪酸:单不饱和脂肪酸:多不饱和脂肪酸的比例约为2:1:1。尽管饱和脂肪酸占主导地位,但这些午餐菜单中这些脂肪酸提供的总热量比例平均不到10%。此外,这些餐食提供的钠比钾多,它们提供的氯化钠计算量接近一天建议摄入的总量。总体而言,这项研究的结果表明,该大学餐厅提供的午餐可以满足学生营养需求的很大一部分,同时提供符合现代健康营养指南的餐食。结果还强调了传统委内瑞拉食物的优点,因为在所有分析的菜单中,委内瑞拉国菜的脂肪和盐含量最少。

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