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growth of micro organism high moisture containt food keep long time at room temperature air around the food contaning micro organism food with low salt,sugar,acid conent 2) Presence of enzymes: - enzymes are chemical substances found in all plants and animals. If we keep green mango in grass its color changes green to yellow and after it changes in black spot on it. This due to continue action of enzymes. 3) Insect , worms and rats:- some time we see that small insect or worm occur in dal or rice or in any grain .These eat the food grains and convert it in to powder .such food is unfit to human. Principles of food preservation




Q1) Match the part
             A                                                                       B

1) Enzymes 1) because of insect and worm 2) Micro 2) find inside the food 3) Grain convert in powder 3) small

Q 2) writes the principles of food preservation? Q 3) Write true or false 1) Food spoilage control only controlling by enzymes activity. 2) Food preservation is not necessary.

3) Removal of micro organism, inactivating enzymes, and removal insect, worms and rats foods are preserved.


How we preserved food easily at home by simple methods

(1) Using preservatives

Preservatives added in food to make it lost for longer time. There are two types of preservatives:- 2) Presence of enzymes: - enzymes are chemical substances found in all plants and animals. If we keep green mango in grass its color changes green to yellow and after it changes in black spot on it. This due to continue action of enzymes. 3) Insect , worms and rats:- some time we see that small insect or worm occur in dal or rice or in any grain .These eat the food grains and convert it in to powder .such food is unfit to human. Principles of food preservation




Q1) Match the part
             A                                                                       B

1) Enzymes 1) because of insect and worm 2) Micro 2) find inside the food 3) Grain convert in powder 3) small

Q 2) writes the principles of food preservation? Q 3) Write true or false 1) Food spoilage control only controlling by enzymes activity. 2) Food preservation is not necessary.

3) Removal of micro organism, inactivating enzymes, and removal insect, worms and rats foods are preserved.


How we preserved food easily at home by simple methods

(1) Using preservatives

Preservatives added in food to make it lost for longer time. There are two types of preservatives:- 2) Presence of enzymes: - enzymes are chemical substances found in all plants and animals. If we keep green mango in grass its color changes green to yellow and after it changes in black spot on it. This due to continue action of enzymes. 3) Insect , worms and rats:- some time we see that small insect or worm occur in dal or rice or in any grain .These eat the food grains and convert it in to powder .such food is unfit to human. Principles of food preservation




Q1) Match the part
             A                                                                       B

1) Enzymes 1) because of insect and worm 2) Micro 2) find inside the food 3) Grain convert in powder 3) small

Q 2) writes the principles of food preservation? Q 3) Write true or false 1) Food spoilage control only controlling by enzymes activity. 2) Food preservation is not necessary.

3) Removal of micro organism, inactivating enzymes, and removal insect, worms and rats foods are preserved.


How we preserved food easily at home by simple methods

(1) Using preservatives

Preservatives added in food to make it lost for longer time. There are two types of preservatives:-