유청단백질농축물을 기본 배지로 한 Bacillus polyfermenticus SCD균의 생육과 항산화물질 생산

• 발행기관: 한국축산식품학회
• 저자명: 최귀헌 이장현 조미나 윤여창 백현동
• 간행물 정보: 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제28권 제1호, 105~108쪽, 전체 4쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2008.03.31

영문 초록

The cell growth and antioxidant activity of Bacillus polyfermenticus SCD were studied in tryptic soy broth (TSB) medium and whey protein concentrate (WPC)-based medium. Overall, higher lactose contents in WPC-35 medium (up to 2.0%), and longer culture times correlated with greater cell viability. In WPC-35 medium with 1.5% and 2.0% lactose, the cell growth of B. polyfermenticus SCD was similar to growth in TSB medium. The 1,1-diphenyl-2-picyrylhydrazyl (DPPH) radical scavenging activity of culture supernatant of B. polyfermenticus SCD in WPC-35 medium was measured to assess antioxidant activity. The antioxidant activity increased up to 32 hr of culture, reaching a maximum of 75.57% DPPH radical scavenging activity. The antioxidant activity seemed to follow the typical kinetics of primary metabolite synthesis. The antioxidant activity of B. polyfermenticus SCD supernatant in WPC-35 medium was more effective and stable than supernatant from TSB medium. These results suggest that WPC-35 medium is effective for the production of antioxidant by B. polyfermenticus SCD.

키워드

Bacillus polyfermenticus SCD antioxidant activity whey protein concentrate