The term biochemical can refer to any chemical compound which is part of the makeup of living cells. The major biochemicals which Worthington purifies are proteins obtained from materials such as beef hearts and other natural substances.
Enzymes are proteins which act as catalysts.
Every aspect of life involves chemical reactions. None of these reactions happen spontaneously in your body. Catalysts are needed to get each kind of reaction going, and enzymes are the catalysts used by living organisms. Enzymes are used in medical research. An example is the use of an enzyme called collagenase for dissolving tissue.