2. Answer the following questions in
your own words.
(a) How is milk pasteurized ?
(b) Why should we not consume
adulterated food materials ?
(c) What precautions do your parents
take to keep foodstuffs safe?
(d) How does food spoilage occur ?
Which are the various factors
spoiling the food ?
(e) Which methods of food preservation
would you use?
Answers
A- the process in which milk is heated upto 70 degree for 20 to 30 minutes and then kept in refrigerator for sudden cooling is known as pasturisation
B-. We should not consume adulterated food materials because it affects our health. It is unsafe & impure. Adulterated food can cause stomach disorder, food poisoning,cancer, heart problems, giddiness, Diarrhoea, infertility, allergies, anaemia,brain damage, paralysis, hyperactivity ,etc.
C-. Preparing and Cooking Raw Meat, Poultry, Fish, and Egg Products. Wash your hands with warm water and soap before preparing foods and after handling raw meat, poultry, fish, or egg products. Keep raw meats and their juices away from other foods in the refrigerator and on countertops. Never wash raw chicken
D-. Causes of Spoilage
When microbes sit on our food, they pass on these germs to our food. There are various factors which are responsible for food spoilage such as bacteria, mould, yeast, moisture, light, temperature, and chemical reaction.
E-. method of food preservation
1- common salt as preservatives
2- oil and vinegar as preservatives
3-. sugar as preservatives
4- heat and cold treatment
5- storage and packing in air tight container
6-. canning