二、膳食纤维与健康.pptVIP免费

Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene朱俊东第三军医大学营养与食品卫生学教研室膳食纤维与健康第一页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene人体营养需要--传统的六大营养素50%-60%1%5%20%15%2%第二页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene25/1/26碳水化合物，俗称“糖〞，是由C、H、O元素组成的化合物，大多数碳水化合物中的H是O的两倍，故称为“碳水化合物〞，用通式Cn(H2O)m表示。甲醛CH2O，醋酸C2H4O2，乳酸C3H6O3脱氧核糖Ｃ5Ｈ10Ｏ4，鼠李糖Ｃ6Ｈ12Ｏ5第三页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene简单糖单糖双糖复杂糖寡糖〔3-10个单糖分子〕多糖糖原淀粉食物纤维4第四页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene葡萄糖〔C6H12O6〕人体利用糖的形式其它大分子糖的根本构成单元存在于水果、蔬菜、蜂蜜中血液中游离葡萄糖5g第五页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene果糖最甜的糖存在于水果、蜂蜜中半乳糖组成乳糖的单糖分子自然存在的极少第六页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene麦芽糖蔗糖半乳糖第七页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene3-10个单糖分子组成人体消化酶不能分解，肠道菌群可以代谢它们存在于豆类等蔬菜中棉籽糖第八页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene淀粉植物中糖的重要储存形式由葡萄糖分子组成的长链大分子糖包括直链淀粉和支链淀粉两种第九页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene糖原动物中糖的储存形式〔肝脏100g，肌肉400g〕由葡萄糖分子组成，分枝较多膳食中可被忽略的糖来源第十页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene第十一页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene第十二页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene第十三页，共七十五页。Dept.ofNutritionandFoodHygieneDept.ofNutritionandFoodHygiene膳食纤维碳水化合物第七...