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감태(E. cava Kjellman) 효소분해산물의 항당뇨 및 알코올 분해능과 미용효과

α-Glucosidase, Tyrosinase, and Elastase Inhibitory Effects of Enzymatic Extracts from Ecklonia cava and its Alcohol Metabolizing Activity

  • 김혜윤 (신라대학교 의생명과학대학 식품영양학과) ;
  • 조은경 (신라대학교 의생명과학대학 식품영양학과) ;
  • 강수희 (신라대학교 의생명과학대학 식품영양학과) ;
  • 배정미 (신라대학교 의생명과학대학 식품영양학과) ;
  • 최영주 (신라대학교 의생명과학대학 식품영양학과)
  • Kim, Hye-Youn (Department of Food and Nutrition, College of Medical Life Sciences, Silla University) ;
  • Cho, Eun-Kyung (Department of Food and Nutrition, College of Medical Life Sciences, Silla University) ;
  • Kang, Su-Hee (Department of Food and Nutrition, College of Medical Life Sciences, Silla University) ;
  • Bae, Jeong-Mi (Department of Food and Nutrition, College of Medical Life Sciences, Silla University) ;
  • Choi, Young-Ju (Department of Food and Nutrition, College of Medical Life Sciences, Silla University)
  • 투고 : 2012.02.27
  • 심사 : 2012.05.30
  • 발행 : 2012.06.30

초록

본 연구에서는 기장 해안의 해수에서 분리한 해양 미생물로부터 해조류의 난소화성 복합다당류를 분해하는 균주를 분리하고 동정하여 Microbulbifer sp. SC092로 명명하였다. Microbulbifer sp. SC092 미생물에 의하여 생성된 조효소의 기질 특이성 분석으로 agar 및 alginic acid를 분해하는 효소활성이 각각 146.2%로 agarase와 alginase 효소활성이 높은 것으로 나타났다. 감태 효소분해산물의 항산화력은 DPPH radical 소거능과 SOD 활성으로 측정하였으며, DPPH radical 소거능과 SOD 활성은 각각 84.1, 89.6%로 나타났다. 감태 효소분해산물의 혈당 강하능은 ${\alpha}$-glucosidase 활성억제 효과를 측정하였으며 ${\alpha}$-glucosidase 활성은 58.7%로 나타났다. 감태 효소분해산물의 항염증 소재로써 이용 가능성은 인체의 위의 pH와 비슷한 조건에서 아질산염소거능 측정으로 확인하였는데, 0.5 mg/ml 농도에서 56.3%를 나타내어 positive control로 사용한 Vit C 보다 높은 활성을 보였다. 알코올분해능은 ADH와 ALDH 활성을 측정한 결과는 각각 123.3, 215.2%로 나타나 감태 효소분해산물의 우수한 숙취해소 효능을 보였다. 감태 효소분해산물의 미백 및 주름개선기능은 tyrosinase 및 elastase 저해효과로 분석하였다. 감태 효소분해산물의 농도가 증가함에 따라 미백 및 주름개선기능은 농도 의존적으로 증가하는 경향을 나타내었으며, 분해산물의 농도 2.5 mg/ml 농도에서 각각 42.2%와 73.1%로 높은 저해 효능을 나타내었다. 이러한 결과는 효소 추출법이 새로운 기능성 소재를 발굴하는데 효과적인 추출법인 것으로 기대된다.

Microbulbifer sp. was used to acquire the degrading products from Ecklonia cava (DPEC) and the products were investigated to determine the physiological activities. Firstly, 2,2-diphenyl-1-picrylhydrazyl (DPPH) activity and superoxide dismutase (SOD) assay were about 84.1% and 89.6% at 2.5 mg/ml, respectively. In addition, nitrite scavenging ability was shown to be 56.3% at 0.5 mg/ml on pH 1.2. ${\alpha}$-Glucosidase inhibitory activity was increased in a dose-dependent manner and was about 58.7% at 2.5 mg/ml. To determine the influence of DPEC on alcohol metabolism, the generating activity of reduced-nicotinamide adenine dinucleotide (NADH) by alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) were measured. Facilitating rates of ADH and ALDH activities by DPEC were 123.3% and 215.2% at 2.5 mg/ml, respectively. For analyses of anti-wrinkling and whitening effects, its elastase and tyrosinase inhibitory activities were measured and were about 73.1% and 42.2% at 2.5 mg/ml, respectively. These results indicated that DPEC has valuable biological attributes owing to its antioxidant, nitrite scavenging, and alcohol metabolizing activities and ${\alpha}$-glucosidase, elastase, and tyrosinase inhibitory activities.

키워드

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