Question

11. You have seen that in most of the packed food-stuff , an expiry date is usually printed. If we use that food-stuff after the expiry date, it gives a bad smell and a bad taste
(a) Why does the food give a bad taste and bad smell after the expiry date?
(b) What methods are used by the food industry to prolong the life of packed food stuff?
(c)What values are expressed in the above paragraph ?
plz give all the answers but right ......​

Answer 1

Solution

1) The food gives a bad taste and bad smell after the expiry date. This is Because of Rancidity. When oil food get oxdised it becomes rancid and then give bad smell and taste

2) Many methods are used by food industry like -

i) Using Antioxidants

ii) Using air tight containers

iii) Nitrogen gas etc

c) Values expressed in this paragraph is -

that we must not use Packed food stuff after its expiry date.Also we read about Rancidity

hope it helps !

Answer 2

Answer:

(a).When food goes bad and starts to become pungent, it is most often due to the growth of spoilage microbes such as bacteria, yeasts and mold. Odors can come from two sources: chemicals that are released from the food as the microbes decompose it, or chemicals produced directly by the microbes themselves.

(b).The methods used by the food industry to prolong the life packed food stuff are :-

1. Filling the packet with nitrogen gas to protect the food stuff from rancidity.

2. Before packaging the food is trasfered from many process which help in preventing the spoiling of food.

(b)Explanation:

Although a bad smell or taste are signs that food has 'gone off', these signs often aren't caused by germs that give you food poisoning. So the food's ... A 'use by' date tells you how long food will stay safe. They have to be ... Don't be tempted to eat food after the 'use by' date on the label, even if it looks and smells fine.