两种用于临床肠内营养的商业饮食中蛋白质的营养利用和脂肪的消化利用。

Nutritive utilization of protein and digestive utilization of fat in two commercial diets designed for clinical enteral nutrition.

作者信息

Alférez M J, Campos M S, Barrionuevo M, López-Aliaga I

机构信息

Department of Physiology, Faculty of Pharmacy, University of Granada, Spain.

出版信息

Nahrung. 1990;34(6):499-507. doi: 10.1002/food.19900340604.

DOI:10.1002/food.19900340604

PMID:2119484

Abstract

The digestive and metabolic utilization of protein (50% lactoalbumin + 50% casein) and fat (43.0% butter, 29.5% olive oil, 14.7% soy oil, 9.8% MCT and 3.0% lecithin) provided by two commercial diets used in clinical enteral nutrition (normoproteic, 16.1% protein and 20.8% fat, and hyperproteic, 23.1% protein and 14.9% fat), was studied in adult rats (mean body weight 180 g). The diet containing the greater amount of protein improved the digestive utilization of nitrogen, and although nitrogen retention was optimal, it failed to rise further when the dietary protein supply was increased. The digestive utilization of fat in both diets was excellent.

摘要

在成年大鼠（平均体重180克）中研究了两种用于临床肠内营养的商业饮食（正常蛋白质饮食，蛋白质含量16.1%，脂肪含量20.8%；高蛋白饮食，蛋白质含量23.1%，脂肪含量14.9%）所提供的蛋白质（50%乳白蛋白 + 50%酪蛋白）和脂肪（43.0%黄油、29.5%橄榄油、14.7%大豆油、9.8%中链甘油三酯和3.0%卵磷脂）的消化和代谢利用情况。蛋白质含量较高的饮食改善了氮的消化利用，尽管氮潴留处于最佳状态，但当膳食蛋白质供应增加时，氮潴留未能进一步提高。两种饮食中脂肪的消化利用率都很高。