A method for isolating and recovering pituitary gland, protein hormones derived from tissues

摘要

Protein hormones are fractionated and isolated from extracts of pituitary glands or tissues. Increased yield and purity of the growth hormone is obtained by using controlled amounts of polyethylene glycol as precipitating agent at pH = 4-6, preferably 4.5-5.0 and separating the precipitated fractions.