- Written by Michael Mullan
Peroxidases catalyse reactions in which hydrogen peroxide is reduced and a suitable electron donor is subsequently oxidised. A wide variety of organic and inorganic substances can serve as electron donors, but substrate specificity varies between various peroxidases.
- Written by Emily Haque and Rattan Chand
Milk is an excellent source of well balanced nutrients and also exhibits a range of biological activities that influence digestion, metabolic responses to absorbed nutrients, growth and development of specific organs, and resistance to disease. These biological activities are mainly due to the peptides and proteins in milk. However, some of the biological activity of milk protein components is latent, and is released only upon proteolytic action. Bioactive peptides are produced during digestion of milk in the gastrointestinal tract, and also during fermentation and food processing.