Preparation and Characteristics of Low-salt Soy Sauce with Anti-hypertensive Activity by Addition of Miduduk Tunic, Mulberry, and Onion Extracts

미더덕 껍질, 뽕잎, 양파 추출물을 첨가한 항고혈압 저염간장의 제조 및 특성

  • Received : 2014.02.14
  • Accepted : 2014.05.02
  • Published : 2014.06.30


Extracts of Styela clava (Korean name: miduduk) tunic, mulberry, and onion were selected by pre-screening to develop low-salt soy sauce (12% salt content) with anti-hypertensive activity. After choosing the formula for low-salt soy sauce, extracts were added separately or by mixture in combination. In the case of anti-hypertensive activity, low-salt soy sauce containing extracts of miduduk tunic and onion showed 30% increased inhibitory activity towards angiotensin I converting enzyme, compared to normal salt soy sauce (15% salt content). Addition of extracts also significantly increased DPPH radical scavenging activities of the soy sauces. These results suggest that natural resources such as miduduk tunic, mulberry, and/or onion might be potential candidates for development of low-salt soy sauce with anti-hypertensive activity.


Supported by : 중소기업청


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