A experimental model of spontaneous hypertensive rats(SHR)was established to investigate the hypobaric activity in vivo of ACE inhibiting peptides(ACEIPs)from sunflower seeds.The results showed that ACEIPs could lower the systolic blood pressure of SHR,and there was an obvious concentration-effect relationship.In addition,the hypertensive activity of ACEIPs had a certain timeliness SHR were given by gavage with ACEIPs for Long-term.Weight of each group had increased,including the control group rats was one of the biggest gain,positive control group gain minimum,ACEIPs group center.Except the s...