z营养与生化蛋白质.pptx

Nutrition 营养;;Nutrients : The ingredients that give us nourishment in Food are called nutrients. 具有营养功效的食物成份称为营养素。

营养素是指食物中可给人体提供能量、机体构成成分和组织修复以及生理调节功能的化学成分

nutrients are categorized as fats, proteins, carbohydrates (sugars and starches), minerals and vitamins. 到目前为止营养素可分为脂肪、蛋白质、碳水化合物(糖和淀粉)、矿物质、维生素。 ;Nutrients might be divided into two general categories based on the amount that we need.

根据人体需要量的不同，营养素分为两大类：

what we need in relatively large amounts are macronutrients (carbohydrats, fats, proteins)需要量较大的称为常量营养素（碳水化合物、脂肪、蛋白质）；

What we need in relatively small amounts are micronutrients(mineral elements and vitamins),需要量较小的称为微量营养素（矿物质和维生素）。;Protein　蛋白质

;History of protein 对蛋白质的认识历史

Essential Amino Acid** 氨基酸和必需氨基酸

Protein’s Function* 蛋白质的功能

Digestion, Absorption and Metabolism 消化、吸收和代谢