The analcime zeolite (Na16Al16Si32O96.nH2O) was treated with hydrochloric acid 0.25 mol.L-1, followed by the funcionalization with glutaraldehyde and immersed in the proteic extract obtained from gross extract of sweet potato pulp (Ipomoea Batatas (L) Lam), which presents in its composition the polyphenol oxidase enzyme (PPO). Other samples were submitted to the same procedure with characterizations by scanning electron microscopy, Fourier Transform Infrared spectroscopy and thermogravimetry.
analcime zeolite; glutaraldehyde; polyphenol oxidase; enzyme
