Fish by-products can account up to 75% of total weight of fish catch, harvested or
processed. Despite their high economic value, by-products have been used mainly for the
production of low-value products resulting in a low profit for the fish industry. Thus, it is
imperative to develop efficient and effective technologies for the recovery of valuable
ingredients from fish by-products. The main focus of this thesis was to develop a simple
hydrolysis process to extract valuable compounds and liberate bioactive peptides from fish
by-products of fish species endemic to Australia as well as exploring the essential
physiological properties of these bioactive peptides, especially their potent use for colon
cancer treatment.