Chemical Preservatives Flashcards
1
Q
Chemical preservative are those which kills mo
A
No
May inhibit
Retard
Arrest growth of mo
2
Q
Chemical preservatives are usually added …(During, after)food preparation
A
After
3
Q
NaCl inhit microbial growth only by dehydration?
A
No
Also by interfering PROTEOLYTIC ENZYMES
4
Q
Salt is ineffective against which organism- bac,fungi, virus
A
Virus
5
Q
Salt is used as chem preservative in
A
Olive, cabbage, cucumber,
Butter, cheese
Bread
Meat, fish
6
Q
Salt and sugar act as preservative by creating high osmotic pressure which causes…hypertonic/ hypotonic env for mo
Its effective against yeast,mold, bac
Not against virus
It inhibits growth and..
A
Hypertonic
Emzymatic action
7
Q
Preservative action of sugar can be increased by using
A
Invertase
Monomeric form more efficient
