Abstract
By the combined use of ion exchange resins, nitrogenous compounds in the water extracts of fresh and putrefied mushrooms were separated into four fractions: strong basic, weak basic, neutral, and acidic.
In the autolyzed Matsutake mushroom, acidic nitrogen, neutral nitrogen and volatile basic nitrogen increased while unvolatile basic nitrogen remarkably decreased.<BR.As the putrefaction proceeded, all these were diminished and reached definite levels in equilibrium.
A rapid increase of volatile amines in the early stage of putrefaction and the succeeding decrease in the later stage were impressive.
