关键词: 豆豉, 降血压, ACE抑制剂

Abstract: Antioxidant activities,α- glucosidase inhibitory activities and angiotensin I-converting enzyme (ACE) inhibitoryactivities of different douchi (fermented bean products) were compared in this paper.The ACE inhibitory activities of douchikoji fermented by Aspegillus.egyptiacus were analyzed after being preincubated with ACE and gastrointestinal protease.The resultsshowed that the extracts of douchi contributed both antioxidant activities and α- glucosidase inhibitory activities.Its ACEinhibitory activities had little difference after being preincubated with ACE ,but all increased greatly after being preincubatedwith different gastrointestinal proteases.It suggested that they were pro-drug type inhibitor.

Key words: douchi, antihypertensive, ACE inhibitor