Kinotannic acid
Encyclopedia
Kinotannic acid is the chief constituent of the kino gum, of which it contains 70 to 80 per cent. Kino also contains kino red, a phlobaphene
produced from kinotannic acid by oxidation. It is closely related to the tannin
from catechu; its non-glucosidal nature was established by Bergholz
.
Phlobaphene
Phlobaphenes can be defined either as the reddish colored phenolic substances extracted from plant that are alcohol soluble and water insoluble or the reddish colored, water insoluble products that result from treatment of tannin extracts with mineral acids .The name phlobaphen come from the Greek...
produced from kinotannic acid by oxidation. It is closely related to the tannin
Tannin
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids.The term tannin refers to the use of...
from catechu; its non-glucosidal nature was established by Bergholz
Bergholz
Bergholz is a municipality in the Vorpommern-Greifswald district, in Mecklenburg-Vorpommern, Germany....
.