meat is one of essential foods our daily life.It is very palatable and nutritious because of good resource for protein.Meat has recently been found possess physiological functions for modulating metabolismin our body.We are doing basic and applicable research on taste and aroma contributing to meat palatability,and physiological function of meat.Especially,in the field of meat palatability,identification of sourness-suppressing peptides,clarification of mechanism of their production and evaluation of these peptides by voltage clamp method using oocytes areour present projects.In the field of physiological functions of meat,srvey of peptides possessing hypotensive or antioxidant activity and clarification of structure of these peptides are focused.These effects of peptides are also evaluated using cultured cells and animals