pectic

Congealing; curdling: noting an acid found in many fruits, which in large part makes up fruit-jellies.

Of or pertaining to pectin; specifically, designating an acid obtained from ordinary vegetable jelly (pectin) as an amorphous substance, tough and horny when dry, but gelatinous when moist.

Of or pertaining to pectin or pectin-like substances.

Of or relating to or derived from pectin.