关键词: 海洋多肽, 生物活性, 氨基酸组成, marine peptides, biological activities, composition of amino acid

Abstract: Marine ecological system has the following characteristics : high pressure and high salt， low temperature and low light all the year round，less nutrition and more competition. So the marine organisms in their growth and metabolic process produce a large amount of materials with special chemical structure，special physiological activity and function. The activity of marine bioactive polypeptides，which have anti-hypertensive，anti-oxidation，anticoagulant and antibacterial activity，arouse great interest of scientific researchers . Currently，some of the polypeptides or analogs extracted from fish，shellfish and crustaceans have been listed or entered into clinical trials. This article reviewed the role of these bioactive peptides in functional foods， nutritional foods and drugs.