2016春八年级数学下册4.2《提公因式法》直接提公因式因式分解课件北师大版.ppt

Food Sensitivities, Allergic Reactions, and Food Intolerances食品敏感性、过敏性反应和食品不耐性
Allergens
Employees should be aware of major allergens and the menu items that contain them.
When serving customers with food allergies, servers must be ready to answer customers’ questions about any menu item.
Servers should never take a guess about what a menu item contains. If they don’t know, they should ask someone who does.
Cross-contact occurs when allergens are transferred from food containing an allergen to the food served to the customer.
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A food allergy is the body’s negative reaction to a food protein.
CONTENTS 主要内容
DEFINITION AND MECHANISMS OF ADVERSE FOOD REACTION第一节食品不良反应的定义和机理
SYMPTOMS OF ADVERSE FOOD REACTIONS第二节食品不良反应的症状
DIAGNOSIS OF ADVERSE FOOD REACTIONS第三节食品不良反应的诊断法
PREVALENCE第四节发病率
FOOD ALLERGENS第五节食品过敏原
FOOD ADDITIVES第六节食品添加剂
FOOD LABELING IN RELATION TO FOOD SENSITIVITIES 第七节与食品过敏性有关的食品标签
DEFINITION AND MECHANISMS OF ADVERSE FOOD REACTION第一节食品不良反应的定义和机理
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概述
食物过敏和食物不耐受都是机体对食物的不良反应过程;
食物过敏是由所摄入的食物或食物成分所引发的一种免疫反应;与食物或食物成分的生理学作用无关;
食物不耐受是由食物或食物成分所引发的机体的一种异常生理反应,与机体免疫反应无关。
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