Question

Q.24)
Astringents show antimicrobial action by ( 1
marks
Ans.
Halogenation
Protein precipitation
Inhibition of enzymes
Oxidation​

Answer 1

Answer:

Condensed tannin derived from astringent persimmon has been shown to have a strong protein coagulation action and antibacterial effect. Catechols derived from Diospyros kaki Thunb. . For example, it is believed that hydrophobicity of S. mutans is primarily mediated by bacterial cell surface proteins [22].

Condensed tannin (wt%): 21.5

Protein, lipid, polysaccharide , ash: 1.0