《营养添加剂》PPT课件.ppt

Nutritional Additives,-营养强化剂,1.1 Definition of nutritional additives (营养强化剂的定义 ) 1.2 Types and classification of nutritional additives (营养强化剂的分类 ) 1.3 Benefits of nutritional additives in foods (营养强化剂的作用),Main Contents,1.1 Definition of nutritional additives (营养强化剂的定义 ),Nutritional additives are utilized for the purpose of restoring nutrients lost or degraded during production, fortifying or enriching certain foods in order to correct dietary deficiencies, or adding nutrients to food substitutes.,Nutritional additives is also called food nutritional supplements.,In order to strengthen the nutrients in food and join natural or synthetic which belongs to the natural nutrients range of food additive. (营养添加剂为增强营养成分而加入食品中的天然的或 人工合成的， 属于天然营养素范围的食品添加剂 ),Currently, there are about 410 pieces of information about the excellent Nutritional Additives manufactures and Nutritional Additives。,1.2 types and classification of nutritional additives (营养强化剂的分类),1.2.1 vitamins supplements (维生素类强化剂) Fat-soluble vitamins (脂溶性维生素类） : VA 、VD、VE Water-soluble vitamins （水溶性维生素类）: VC、VB1、VB2,1.2.1 vitamins supplements (维生素类强化剂),Fat-soluble vitamins (vitamin A, vitamin D, vitamin E, and vitamin K) require bile salts for absorption and are stored in the body. 脂溶性维生素(维生素A、维生素D、维生素E、维生素K)需要胆盐才能被吸收，并储存在体内。,Fat-soluble vitamins are very important nutriments, and have been used in foodstuff or animal mash industry asadditives. 脂溶性维生素是很重要的营养素， 在食品或饲料业中作为添加剂， 使用范围广泛。,1. 2.1 vitamins supplements (维生素类强化剂),1.2 types and classification of nutritional additives (营养强化剂的分类),1.2.2Amino Acids supplements(氨基酸类强化剂) L-lysine monohydrochloride （L-赖氨酸-盐酸盐),The functions : L-lysine monohydrochlonde (LMH) could increase the insulin secretion and regulate the blood glucose level. (近代研究显示L-赖氨酸可以提高胰岛素分泌，调节血糖水平.),1.2. 2.2DL-methionine (DL-蛋氨酸),The functions: 1、DL - methionine is the addition of nutrition. And DL- methionine is the essential material in body. Although it can safely be used for food, DL - methionine may not be used to infants food. (DL-methionine 是一种营养添加剂，而且它是人体必需的物质。虽然它能够安全地应用于食品中，但是却不适宜添加在婴儿食品中。）,2、It is mainly used as animal essential amino acid in fish meal and additive of chickens, pigs and cows in order to keep animal and fowl growing healthily. It can improve the milky ability of cows, prevent the occurrence of hepatosis. (DL-蛋氨酸主要地使用作为动物必需氨基酸，如鱼、鸡的添加剂、猪和牛。添加这种物质可以使它们长得更好。它能改善牛的乳化能力，防止肝病的发生。),1.2.23、Taurine (牛黄酸,The functions:,1、Promote babies brain tissue and intellectual development. (促进婴幼儿脑组织和智力发育 ) 2、Improve neurological wiring and visual function。 （提高神经传导和视觉机能） 3、Improve and enhance the human endocrine state immunity。 （改善内分泌状态，增强人体免疫 ）,1.2 types and classification of nutritional additives (营养强化剂的分类),1.2.3 Inorganic salt supplements(无机盐类强化剂) calcium salts(钙盐) 1. a part of the bones and teeth 2. Promote enzyme role 3. Stimulative nerve muscle activity ferric salts(铁盐) 1.Lack of iron supplement human element 2.composition hemoglobin, zinc salts(锌盐) Our country to plant food dietary structure to give priority to, plant foods low zinc content, zinc nutrition fortified foods developed can improve human zn-containing quantity.(我国膳食结构以植物性食物为主，富锌食物摄入较少，开发研制锌营养强化食品能提高人体含锌量) selenium salts(硒盐) Iodide(碘)： 1.Immune function 1. Promote metabolism 2. Antitumor function 2. Affect growth,The functions of Inorganic salt supplements,1.2 types and classification of nutritional additives(营养强化剂的分类),1.2.4 Fatty Acids supplements（脂肪酸类强化剂) 1）Linolenic Acid (亚麻酸) 2）Linoleic Acid (亚油酸) 3）Arachidonic Acid (花生四烯酸) 4）5,8,11,14,17Eicosapentaenoic Acid (二十碳五烯酸和二十二碳六烯酸),1.3 Benefits of nutritional additives in food (营养强化剂的作用),The fortification of foods began in 1924 when iodine was added to table salt for the prevention of goitre.,1.3 Benefits of nutritional additives in foods (营养强化剂的作用), vitamins are commonly added to many foods in order to enrich their nutritional value. For example, vitamins A and D are added to dairy and cereal products。 Several of the B vitamins are added to flour, cereals, baked goods, and pasta。,1.3 Benefits of nutritional additives in foods (营养强化剂的作用),Vitamin C is added to fruit beverages, cereals, dairy products, and confectioneries. Other nutritional additives include the essential fatty acid 、 linoleic acid、minerals such as calcium and iron,and dietary fibre。,1.3 Benefits of nutritional additives in foods (营养强化剂的作用),A number of agents are added to foods in order to aid in processing or to maintain the desired consistency of the product. The Table shows the functions performed by various processing agents employed in the food industry. Several of these agents are discussed in more detail below.,1.4 The significance of Nutrient Additives (营养添加剂的重要意义),No.1 Improving the nutritional quality of food. (提高食品的营养质量) No.2 Make up the natural defects natural food. (弥补天然食物的天然缺陷 ) No.3 Supplement the lack of nutrients in shipping and processing. (补充食品在加工，贮运过程中营养素的缺失 ) No.4 Decrease and prevent many nutritional deficiency caused by poor nutrition and other complications. (减少和预防很多营养缺乏症及因营养缺乏引起的其他并发症),No.5 Simplified dietary treatment and