Introduction Trends in food spoilage and sa ther than falling, year by year(e.g. Foods deteriorate as a result of phys hanges, the activities of enzymes and of micro- r approximately doubled between 1983 organisms (Table I). In addition, post-harvest losses in the UK, with substantial economic consequences

Raw material selection- fruits and Ⅴ egetables L. Bedford, Campden and Chorleywood Food Research Association 1.1 Introduction Fresh fruits and vegetables are utilised in a wide range of chilled products. They may be sold whole, or peeled (for example peeled potatoes and onions)or further prepared(e.g. carrot batons). After washing or further preparation they form ingredients for mixes such as mixed fruit or salad packs or for further

Institutional framework n recent years, the forest sector has undergone stakeholders in forestry; the recent emphasis on a fundamental transformation, largely as a ond food security and poverty alleviation; and the result of restructuring, downsizing, changes in need to comply with legally binding ownership and increased recognition of the commitments multiple benefits that forests One of the For the most part, however, education is not most significant trends

UNIT FOUR Section A Studying Abroad I. Background Information 1. Host family is the family that provides board and room, food etc. for overseas Ⅴ isitors or students 2. Christians are followers of Jesus with whom they have a personal relationship and whom they accept/receive into their lives

A1 Development of \Welfare State\ 1. Definition of Poverty 1.1 Absolute Poverty- families without minimum food, clothing and shelter needed for maintenance of merely physical health (concept at beginning of last century)

Contents Foreword Preface 111 How to use the reference guide Introduction Food irradiation topics

案例 根据二手数据,家庭食物的替代品HMR将 会是下个世纪的主要家庭食品。HMR是一种便于 携带的、高质量的外卖食物,在食品行业中发展最 迅速,也最具商机。 NPD Group(位于华盛顿的 一家调研公司)最近报道说,1996年美国餐馆食 物的外卖销量有史以来第一次超过了餐馆内的就餐 销量(外卖销量在餐馆的总销量中占51%)。据 食品营销学会(Food Marketing Institute)去年 的一项研究显示,38%的消费者说他们经常在家吃 外卖的现成食物。最近麦肯锡 McKinsey&Co.) 所做的一项研究认为,在1998年至005年之间 食品销售的所有增长几乎都来自食品服务,这种 服务可定义为食品至少是部分地在家外做好

How to use the reference guide Key aspects relating to food irradiation are listed irradiation the range of currently applied and alphabetically. a full list of entries can be found at the ' emerging servation technologies. Each entry end of the book, headings are also classified into: Main in the refer

第一节 引论 第二节 影响酶活力的因素 ◼ 内在因素 ➢酶的浓度 ➢底物的浓度 ◼ 环境条件 ➢pH ➢温度 ➢水分活度 ➢抑制剂 第四节 内源酶对品质的影响 ◼ 酶对生物体的重要性 ◼ 酶催化反应产生的效果 ➢加快食品变质的速度 ➢提高食品的质量 ◼ 控制酶活力 第五节 作为食品加工的助剂和配料而使用的酶 第六节 酶在食品分析中的应用 ◼ 优点 ➢酶具有高度灵敏度和专一性，无需将待测物 与试样中其他组分分离 ➢步骤简单，节省时间 ➢可以将非酶造成的化合物的变化降至最低 ◼ 缺点 ➢试剂昂贵，尤其是纯酶

第一节 引言 第二节 氨基酸的物理化学性质 第三节 蛋白质的结构 第四节 蛋白质的变性 denaturation 第五节 蛋白质的功能性质 ◼ 蛋白质对食品的感官品质具有重要的影响 ◼ 蛋白质的功能性质指的是能使蛋白质对人们所期望的食品特征作出贡献的那些物理化学性质。 ◼ “功能性质”（“Functionality”）的定义在、食品加工、保藏、制备和消费期间影响蛋白质在食品体系中的性能的那些蛋白质的物理和化学性质