论文部分内容阅读
1 油脂概述 在人类生存所必需的8类营养素(蛋白质、油脂、糖类、维生素、矿物质、水、膳食纤维和氧气)中,蛋白质、油脂和糖类是“充饥”的主要营养素,因为它们在体内氧化代谢时能够释放热量,故称“供热营养素”或“大营养素”。它们是人类的基本“食粮”,其中油脂的发热量为9.3大卡/克,是蛋白质和糖类发热量的2.2倍和2.0倍,所以它是“供给能量的高手,果腹耐饥的骄子”。不仅如此,油脂还有多种生理功能:①为人体提供“必需脂肪酸(EFA)”。例如植物油中普遍含有的亚油(LA)就是最重
1 Grease Overview Proteins, fats and oils and carbohydrates are the main nutrients in the 8 types of nutrients (proteins, fats, oils, carbohydrates, vitamins, minerals, water, dietary fiber, and oxygen) necessary for human survival. In the body of oxidative metabolism can release heat, so called “heating nutrients” or “large nutrients.” They are the basic “foods” for humans. The calorific value of oils is 9.3 kcal/g, which is 2.2 times and 2.0 times the calories of protein and carbohydrates. Therefore, it is the “grandchildren of energy supply and hunger-fighting.” . Not only that, there are a variety of physiological functions of fat: 1 to provide the body with “essential fatty acids (EFA).” For example, the most common oil contained in vegetable oils is the heavy oil (LA).