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Food Technology PDF

132 Pages·2002·10.541 MB·English
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Anita Tull an introduction OXFORD / 8A/£ an introduction Anita Tull OXfORD UNIVERSITY PRESS OXFORD Acknowledgements UNIVERSITY PRESS The publishers would like to thank the following for permission to reproduce photographs: Great Clarendon Street, Oxford 0X2 6DP Front cover: Corbis Stockmarket (main picture), Stockbyte and Corel (cut Oxford University Press is a department of the University of Oxford. It furthers the University’s objective of excellence in research, outs); Title page: Corbis Stockmarket; p5: Telegraph Colour scholarship, and education by publishing worldwide in Library/Denis Boissavy; p6: Telegraph Colour Library/Simon Witmore (bottom left), Anthony Blake Picture Library/Rosenfeld Images (bottom Oxford New York centre), Anthony Blake Picture Library/Tim MacPherson (bottom right); Auckland Bangkok Buenos Aires Cape Town Chennai p8: Anthony Blake Picture Library/Maximilian (bottom): Oxford Dar es Salaam Delhi Hong Kong Istanbul Karachi Kolkata University Press (top); plO: Anthony Blake Picture Library/Maximilian Kuala Lumpur Madrid Melbourne Mexico City Mumbai Nairobi (top), Oxford University Press (bottom); pll: Oxford University Press; Sao Paulo Shanghai Singapore Taipei Tokyo Toronto pl4: Stockbyte (left 1, 2, 3, 5, 6,), Corel (left 4); pl5: Anthony Blake Picture with an associated company in Berlin Library/Maximilian; pl7: Corel (left 1, 4), Anthony Blake Picture Library/Tim Hill (left 2), Anthony Blake Picture Library (left 3), Oxford is a registered trade mark of Oxford University Press Stockbyte (bottom centre); pl9: Corbis/Mark Gibson (top); p21: Anthony in the UK and in certain other countries Blake Picture Library/Gerrit Buntrock; p22: Robert Harding Picture © Anita Tull 2002 Library (top and bottom); p23: Robert Harding Picture Library; p24: Corbis/Gehe Company (top left), Oxford University Press (top right); p26: The moral rights of the author have been asserted Corbis/Bob Rowan (left 1), Corel (left 2, 3, 4, 6), Stockbyte (left 5); p27: Database right Oxford University Press (maker) Stockbyte (left 1), Corel (left 2, 3, 4); p28: Anthony Blake Picture Library/Brian Limage (centre); p29: Anthony Blake Picture First published 2002 Library/Philip Wilkins; p32: Holt Studios/Nigel Cattlin; p34: Science All rights reserved. No part of this publication may be reproduced, Photo Library/David Scharf (left and right), Science Photo stored in a retrieval system, or transmitted, in any form or by any means, Library/Microfield Scientific (middle); p36: Oxford University Press; p38: without the prior permission in writing of Oxford University Press, or as Robert Harding/Paul Van Riel; p49: Corbis/Bettmann (top), Corbis/Liba expressly permitted by law, or under terms agreed with the appropriate Taylor (bottom); p50: Robert Harding Picture Library/Robert French; reprographics rights organization. Enquiries concerning reproduction p51: Anthony Blake Picture Library/Graham Salter (top), Anthony outside the scope of the above should be sent to the Rights Department, Blake/Phototeque Culinaire (bottom right), Mary Evans Picture Library Oxford University Press, at the address above (bottom left); p52: Robert Harding/Gavin Hellier (top), Anthony Blake You must not circulate this book in any other binding or cover Picture Library/Graham Kirk (bottom left), Anthony Blake Picture and you must impose this same condition on any acquirer Library/Stephen Read (bottom right), Stockbyte (inset); p54: Corel; p55: Allsport (left), T O’Keefe (right); p58: Robert Harding Picture British Library Cataloguing in Publication Data Library/Westerman (top), Corbis/Tempsport (bottom left), Oxford Data available University Press (bottom right); p62: Corbis/Paul A Souders; p63: Oxford University Press; p64: Holt Studios/Nigel Cattlin (top); p66: Anthony ISBN 0 19 832819 2 Blake Picture Library/Maximilian (bottom left), Anthony Blake Picture 10 987654321 Library/Maximilian (bottom right); p67: Anthony Blake Picture Library/Premium; p68: Oxford University Press; p74: Robert Harding Printed in Spain by Edelvives, Zaragoza Picture Library/Rob Cousins (left); p77: Anthony Blake Picture Library/Maximilian (right); p78: Robert Harding Picture Library/Scott Barrow (left), Robert Harding Picture Library/Mark Mawson (right); p79: Oxford University Press; p80: Robert Harding Picture Library; p84: Anthony Blake Picture Library/Maximilian (top), Anthony Blake Picture Library/Tony Robins (bottom); p85: Anthony Blake Picture Library/Maximilian; p86: Oxford University Press (both); p89: Courtesy of Keith Hosking, Withey Limited (right); p90: Holt Studios/Nigel Cattlin (left), Anthony Blake Picture Library/Joy Skipper (right); p92: Oxford University Press; p94: Oxford University Press; p98: Corel (all); p99: Oxford University Press; pl04: Anthony Blake Picture Library/James Murphy; pl05: Corbis/Bob Rowan; pl08: Anthony Blake Picture Library/Joy Skipper (bottom); pl09: Anthony Blake Picture Library/Kieran Scott (left), Oxford University Press (right); pllO: Oxford University Press (left); pll3: Oxford University Press; pll6: Hulton Archive (left), Oxford University Press (right); pl20: Anthony Blake Picture Library/Rosenfeld Images; pl21: Anthony Blake Picture Library/Maximilian; pl24: Oxford University Press (right) Special thanks to J Sainsbury pic Additional photography by Rob Judges, Martin Sookias and David Tolley Illustrations by Martin Aston and David Russell BARNFfELD COLLEGE" LIBRARY CONTENTS ACCESSION ^2<o ( 02 CLASS A note for teachers 4 A note for students 5 iir .lifrawVlIlii'nt'*i if’’TT''’*1 '* Introduction Unit 6 Using ICT to support making What is food technology? 6 Food labelling 70 The design process 8 Food packaging 74 Project: Novelty cake-making 12 Project: Food for teenagers 80 Project: Advertising food to children 82 Unit 1 Understanding ingredients Organizing your practical work 14 Unit 7 Producing batches Food science 16 Production systems 84 Foods to suit different needs 19 Project: Batch production 87 Food production and the environment 22 Project: Salads 26 "“The world of professional designers Project: Soups 28 Developing new products 88 Project: Authentic ready-made meals 91 Unit 2 Designing and making for yoprSelff Designing food products 30 Unit 9 Selecting ingredients Carrying out surveys and questionnaires 92 Processing and cooking food 32 Sampling food products 94 Keeping food products safe to eat 34 Project: Special diets 98 Project: Keeping fit and healthy 38 Project: Food production in a hospital 100 Project: Snack foods 40 Unit 10 Designing for markets Unit 3 "Using ICT to support research and designing Production systems 104 Organizing and presenting project work Buying food 108 Carrying out research Storing food 112 Project: Foods from around the world Project: Mini-enterprise: starting a small Project: Sports drinks food business 116 Project: Bread batch production 120 Unit 4 Exploring ingredients x Nutrition Unit 11 Using ICT to link to the world outside school Presenting food products Working in a group or team 122 Project: Feeding pre-school children Project: ICT activity 124 Project: Rice 1 . Unit 5 Designing for clients Equipment used in food production Project: Adapting food products A, A note for teachers This book contains a variety of suggested food technology projects. They range in complexity from topics about single foods to projects where students are required to apply the design process to broader situations in the food industry » Most projects include a practical element, which in most cases can be adapted to suit the constraints of time and available facilities. > Guidelines for research are provided, but these are by no means exhaustive, so students need to be encouraged to develop their own research techniques. » The first few projects provide a fairly detailed framework for students to follow, so that they understand how to approach and undertake future projects. » Some projects give information about the topic, to set the scene for students so that they have a starting point on which to base their own research. » Where appropriate, more than one brief is given, in order to show a variety of ways of approaching a topic. 5 A note for students Throughout this book there are ideas for projects that let you explore food technology in greater depth. The first ones show you step-by-step how to produce a successful project. Some of the dopids are more detailed than others, and your teacher will help you decide which ones to try. Whichever project you try, remember these points: » try to present your written and practical work in a neat, clear and interesting way » when finding out about a topic, ask questions, look, listen, read and think about what you find out > when someone reads your project, they should be able to learn something from it » enjoy yourself! What is food technology? Food technology is the study of how different foods can be used By die enc : : ;h . . . :. and made into food products. csi;:x-:c: Before they are ready to be sold in the shops, food products go Understand what food technology means. through a series of tests and studies to make sure that they are: Identify the different parts of the » safe to eat food industry. > good to eat Identify some of the effects that the » easy to use food industry has on people and i well packaged places. » a reasonable price In this book we will be finding out how new food products are designed and made and how the food industry provides us with our daily food. The food industry The food industry is very large and includes: i food producers (people who grow food) i food manufacturers (people who make food products) » food distributors (people who supply foods to shops, restaurants, schools, hospitals) i food retailers (people who sell food) » food providers (people who cook and sell food in restaurants, canteens, etc.) Food producers grow food. Food manufacturers make food Food providers cook and sell food, products. WHAT SS FOOD TECHNOLOGY? People have been growing, making and selling food to other people for hundreds of years, but it was during the 20th century that the food industry became very large. Why did this happen? What were the consequences of the growth of the food industry? Why did this happen? What were the consequences? governments encouraged farmers many foods became cheaper and >- environmental damage to grow more food easier for people to buy big changes to the countryside ' (loss of hedgerows, ponds and woodland and other natural , j*'-' habitats for wildlife) transport by land, sea and air people travelled abroad and tried >- foreign restaurants opened became easier food from other countries foreign foods sold in shops food grown in one country could > some foods, e.g. strawberries, be sent to another country and could be eaten all year round arrive there in good condition people used cars to buy their food > air pollution and less exercise from supermarkets for people growth of technology food could be grown and > fewer people needed to work harvested on a large scale using on farms machinery new food products were invented, >• people had more choice e.g. low-fat spreads, breakfast cereals, instant puddings new ways of preventing food from >- food shopping needed to be 'going off' (preserving food) could done less often be used, e.g. UHT milk, frozen foods, vacuum packaging 1 List the food producers, manufacturers, distributors, retailers and providers in the local area (a telephone directory will help you). 2 Write down why you think some of the food shops, restaurants, factories or warehouses in your area have been built in certain places. For example, are they: near a motorway or airport? in a town centre near offices and other shops? in a housing estate? near a river or the sea? 3 What effects do you think the following might have on the local environment: a) an out-of-town supermarket b) a high-street take-away burger bar c) a meat pie factory near a housing estate d) a large wheat field growing by a river? INTRODUCTION The design process The series of tests and studies that all new food products go By the end of this section/you should through before they are ready to be sold is called the design be able to: process. All new products, including cars, toys, kitchen Understand what the design process is. equipment, medicines, and so on, go through a similar process. Identify the different stages of the There are several stages in the design process for food products. design process. A food manufacturer may repeat some stages when designing a Explain why it is important for a food new food product. manufacturer to work through the design process when producing a Stage 1: Ss a new product needed? new food product. This can be called ‘establishing a need’. There are several reasons why a manufacturer might think a new product is needed: » a customer might ask for a new product ft research (finding out) may suggest a new product is needed ft there may be a problem with an existing product, so it needs to be changed I there may be changes in the types of food people want to eat, for example, they may want foods with less fat or sugar in them To find out more about whether a new product is needed, the manufacturer might carry out some market research. Market researchers will find out about the people who they think might A market researcher conducts an interview with a member of the public. buy the product and about similar products that are available: About people About food products why people buy certain food products ft how they are made how people live (their lifestyle) » what they look, smell, taste and feel like how much money they spend on food ft what happens when they are frozen, cooked in a microwave ft how much cooking they do at home oven, baked, and so on how often they eat out in restaurants ft how well their packaging works (is it easy to read and open, does how much notice they take of food it protect the food?) issues, e.g. healthy eating advice, ft are they suitable for vegetarians, people with allergies, babies, where and how food is grown, and so on? food advertising, damage to the ft do they meet people's needs, e.g. are they easy to prepare and environment, animal welfare use and healthy, are the portion sizes suitable? To find out such information, market researchers use a variety of methods, for example: > Interviews with people, in which they are asked questions from a survey or questionnaire. This might be done through the post, on the telephone, or face to face in the street. > Sampling similar food products to the one being designed, and giving opinions about the products and marks for flavour, colour, Testers carry out sensory analysis. shape, packaging, and so on. This is called sensory analysis.

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