Food Processing

Question 1

What is a process food

Answer 1

Involves taking raw ingredients and change them either physically or chemically into new food products

Question 2

Why food is processed

Answer 2

• Preserve it and extend shelf life eg vegetables
• Make it safer a consumption eg Pasteurised milk kills pathogenic bacteria
• Create new food products e.g. potatoes to make crisps
• Reduced time and energy whenPreparing and cooking food e.g. using a jar white sauce and making lasagna lasagna

Question 3

Primary processing

Answer 3

Changing or converting a raw food material into food that last longer, is fit for sale and is ready to eat or cook

Question 4

Example of expensive processing

Answer 4

Milling of wheat into flour

Question 5

Example of extending shelflife

Answer 5

Processing of raw milk

Question 6

Secondary processing

Answer 6

Changing or converting primary processed foods into order food produces added value field
Eg Manufacturing of Margarine from oil, production of cheese from milk

Question 7

Classification of convenience food

Answer 7

Cook chilled foods - soup
frozen foods - meat 
canned/ bottle food - jams
ready to serve food - crisps biscuits
dried foods - cakes, packets sauces, pasta

Question 8

Advantages of convenience food

Answer 8

• Save time labour and energy
• Few cooking skills needed and little knowledge
• Often fortified with vitamins and minerals
• Easy to store e.g. canned foods can we stacked
• less waste occurs as many convenience foods have extended shelflife

Question 9

Disadvantages of convenience food

Answer 9

• Can be more expensive than similar home-made food
• Often high in fat sugar and salt which can lead to health problems
• May contain additives such as preservatives or flavouring
• May be low in dietary fibre

Question 10

Functional food

Answer 10

Contain an added ingredients that gives the food health benefits over and above the basic nutritional value

Question 11

Examples of function of foods

Answer 11

Breakfast cereals of folic acid added
- Reduced incidence of neural tube defects

Omega three eggs and yoghurt drinks have omega three added
- Lower levels of cholesterol in the blood, reduce risk of coronary heart disease, aid brain functioning

Question 12

Genetically modified food

Answer 12

Foods produced from plants that have had changes introduced in the DNA
E.g. soya beans resistant from herbicides and maze resistant from pest attack