• 제목/요약/키워드: Fibrinolytic Activity

검색결과 323건 처리시간 0.034초

민자주방망이버섯으로부터 혈전용해효소의 정제 및 특성 연구 (Purification and Characterization of Fibrinolytic Enzyme from Lepista nuda)

  • 김준호
    • 한국균학회지
    • /
    • 제33권2호
    • /
    • pp.69-74
    • /
    • 2005
  • 민자주방망이버섯으로부터 분리한 혈전용해효소의 비활성은 22.78 U/mg 이었으며, fibrin를 직접 용해하는 fibrinolytic enzyme 이었다. 15번째까지 N-terminal amino acid 서열 분석 결과, Tyr-Pro-Ser-Pro-Ser-His-Gln-Thr-Ala-Val-Asn-Ala-Ile-Ile-X로 지금까지 발표되지 않은 새로운 효소였다. 분자량은 34 KDa 이고 pH 7.0 부터 pH 9.5의 넓은 영역에서 높은 활성을 나타내는 alkaline protease 였으며, $55^{\circ}C$에서 가장 큰 활성을 보이는 이 효소는 serine protease 저해제인 phenylmethylsulfonyl fluoride를 첨가한 경우 효소의 활성이 전혀 나타나지 않는 것으로 미루어 높은 혈전용해 활성을 갖는 새로운 serine protease로 생각된다. 또한 $Hg^{2+}$의 금속이온을 첨가한 경우에도 효소의 활성은 완전히 사라졌다.

혈전용해효소함유 기능성 청국장제조에 관한 연구 (Study of Functional Chungkukjang contain Fibrinolytic Enzyme)

  • 류충호;김익조;김형갑;정종화;정영기
    • 생명과학회지
    • /
    • 제12권3호
    • /
    • pp.357-362
    • /
    • 2002
  • 전통 콩 발효식품으로부터 혈전용해능이 뛰어난 균주를 분리하였다. 이 균주의 형태학적, 생화학적 특성을 조사한 결과 Bacillus subtilis로 동정되었다. 분리된 균주를 이용하여 혈전용해활성이 높은 청국장 제조를 위한 최적발효조건은 37$^{\circ}C$에서 24시간이었다. 증자대두는 초기 pH 6.3에서 12, 24 및 48시간동안 발효시킨 각각의 pH는 6.31, 7.24, 7.81로 약 알칼리화 되었다. 본 혈전용해효소는 열안정성이 높아 6$0^{\circ}C$ 와 8$0^{\circ}C$에서 30분 처리하였을 때 혈전용해활성을 각각 75%와 와 40% 유지하였다.

Physiological Effects of Hot Water Extract and Solvent Fractions of Carthamus tinctorius L.

  • Kim, Jun-Ho
    • 대한의생명과학회지
    • /
    • 제17권2호
    • /
    • pp.157-165
    • /
    • 2011
  • In this study, we investigated the biological activities of Carthamus tinctorius including antioxidative, fibrinolytic, thrombin inhibitory, ${\alpha}$-glucosidase inhibitory and collagenase inhibitory activities. Carthamus tinctorius, hot water extract was fractionated into hexane, chloroform, ethyl acetate, butanol and water fraction. Each of these was assayed individually. The hot water extract showed high antioxidative activity and thrombin inhibitory activity at 90.17% and 97.10% respectively. In the fraction activity tests, chloroform fraction showed the highest antioxidative activity at 81.85%. The fibrinolytic activity was strong only in the butanol fraction at 0.70 plasmin units/ml. The thrombin inhibitory activities of hexane, ethyl acetate and butanol fractions were 97.35%, 86.74% and 93.18% respectively. In collagenase inhibitory activity test, hexane fraction showed the highest activity at 87.78%. In conclusion, the hot water extract and solvent fractions of Carthamus tinctorius L can be used as a material for the development of biofunctional tea and foods respectively.

아위버섯 추출물의 혈전용해, 트롬빈저해, 항산화 및 항염증 활성 (Fibrinolytic, thrombin inhibitory, anti-oxidative and anti-inflammatory activities of Pleurotus ferulea)

  • 김은정;김준호
    • 한국버섯학회지
    • /
    • 제13권1호
    • /
    • pp.30-36
    • /
    • 2015
  • 아위버섯을 혈관계질환 예방과 치료를 위한 기능성 식품 개발에 이용하기 위한 기초 자료를 얻기 위해 아위버섯 물추출물과 유기용매 분획물의 혈전용해활성과 트롬빈 저해활성, 항산화활성 및 항염증활성을 확인하였다. 에틸아세테이트 분획물은 1.33 plasmin unit의 높은 혈전용해 활성과, 94.45%의 높은 트롬빈 저해활성을 나타냈으며, 물 추출물은 37.01%의 항산화활성을 나타냈으며, 클로로포름 분획물은 98.13%의 가장 높은 항염증활성을 나타냈다. 실험 결과로부터 아위버섯의 에틸아세테이트 분획물은 높은 혈전용해활성, 트롬빈 저해활성 그리고 클로로포름 분획물은 높은 항염증활성을 나타내 심혈관계 질환 관련 치료나 예방을 위한 기능성식품 개발에 이용 가능할 것으로 기대된다.

혈전용해능을 갖는 버섯류의 탐색 (Screening of Mushrooms Having Fibrinolytic Activity)

  • 최낙식;서승염;김승호
    • 한국식품과학회지
    • /
    • 제31권2호
    • /
    • pp.553-557
    • /
    • 1999
  • 혈전용해능을 가진 균류 (버섯류) 5종 Daedaleopsis styracina, Trichaptum abietium, Coriolus versicolor, Pisolithus tinctorius 그리고 Tricholomopsis decora 등을 선발하여 혈전용해효소 활성을 측정하였고, 기질 특이성을 조사하였다. 버섯 추출액을 조제하여 혈전 용해도를 측정한 결과 plasmin 1.0 unit 보다 $3{\sim}4$배의 높은 활성을 보였으며, 그 중 Pisolithus tinctorius이 가장 높은 활성(4.71 plasmin unit)을 나타내었고, Tricholomopsis decora가 Plasmin에 대한 기질 N-p-Tosyl-Gly-Pro-Lys p-nitroanilide에 대해 가장 높은 특이성(1.32 plasmin unit)을 보였다. 버섯의 균사체로부터 추출한 효소를 SDS-fibrin zymography 활성확인법에 의해 분석한 결과 분자량이 54와 61 kDa의 공통된 활성을 가지는 단백질을 확인하였으며, Trichaptum abietium는 100 kDa의 그리고 Tricholomopsis decora는 84 kDa의 강한 활성을 가지는 혈전용해효소를 확인하였다.

  • PDF

보리 입국과 두류 첨가가 전통주의 품질과 혈전용해활성에 미치는 영향 (Effects of Barley Koji and Legumes on the Quality and Fibrinolytic Activity of Korean Traditional Rice Wine)

  • 김재호;이주현;김형종;최신양;이종수
    • 한국식품영양과학회지
    • /
    • 제32권7호
    • /
    • pp.1066-1070
    • /
    • 2003
  • 혈전용해 효과를 가진 전통주를 개발하기 위하여 우선 혈전용해 활성이 있다고 확인된 몇 가지 곡류를 이용하여 입국들을 만들어 이들의 알콜 발효특성을 조사하였고 선정된 입국과 각종 두류 분말 및 기호성 음료 재료들을 술덧에 첨가하여 전통주를 제조한 후 품질 특성과 혈전용해 활성 등을 조사하였다. 보리 입국을 이용하여 전통주를 제조하였을 때 에탄올 생성량은 16.8%로 시판 입국으로 제조한 전통주(15.6%)보다 높았고 혈전용해 활성도 20.0 U로 제일 높았다. 또한 보리입국을 10% 첨가한 술덧에 녹두가루를 50% 첨가하고 대추를 3% 첨가하여 3$0^{\circ}C$에서 10일간 발효시켰을 때 혈전용해 활성이 26.0 U로 증가하였고 맛과 향도 우수하였다.

된장으로부터 혈전용해능을 가진 Bacillus sp.의 분리 및 동정 (lsolation of Bacillus Strains Secreting Fibrinolytic Enzymes from Doen-Jang)

  • 김승호;최낙식;이우일;이종우;김동호
    • 미생물학회지
    • /
    • 제34권3호
    • /
    • pp.87-90
    • /
    • 1998
  • 우리 나라의 전통 대두발효식품인 된장으로부터 혈전용해능을 가진 미생물을 분리하였다. 그 중 5종류의 균주를 Bergey's manual of systematic bacteriology에 의거하여 동정한 결과 Bacillus sp. 균주로 밝혀졌다. 분리된 Bacillus 속 미생물을 효소 유도배지에서 배양한 결과 B. amyloliquefaciens는 2.46 plasmin unit/ml, B pantothenticus는 3.82 plasmin unit/ml 의 혈전용해능을 가지고 있었고, B. subtilis는 4.94 plasmin unti/ml의 높은 혈전용해효소 생산능을 보여주었다. 분리 균주에 의하여 생산된 세포외 단백질을 SDS-PAGE와 reverse fibrin zymogram 활성측정법에 의해 확인한 결과 각 균주별로 서로 다른 혈전용해효소가 생산되었음을 확인하였다.

  • PDF

Isolation of Bacillus subtilis SJ4 from Saeu (Shrimp) Jeotgal, a Korean Fermented Seafood, and Its Fibrinolytic Activity

  • Yao, Zhuang;Meng, Yu;Le, Huong Giang;Kim, Jeong A;Kim, Jeong Hwan
    • 한국미생물·생명공학회지
    • /
    • 제47권4호
    • /
    • pp.522-529
    • /
    • 2019
  • A Bacillus strain, SJ4, exhibiting strong fibrinolytic activity was isolated from saeu (shrimp, Acetes chinensis) jeotgal, a Korean traditional fermented food and was identified as B. subtilis. The B. subtilis SJ4 strain can grow at a NaCl concentration of up to 15% (w/v). The fibrinolytic activity of B. subtilis SJ4 (152.0 U/ml) cultured in Luria-Bertani (LB) broth for 48 h at 37℃ with aeration was higher than that of B. subtilis SJ4 cultured in TSB (124.5 U/ml) under same culture conditions. The major proteins in the LB culture supernatant of B. subtilis SJ4 were analyzed by SDS-PAGE, which revealed three major bands (23, 25, and 28 kDa). The band (23 kDa) with strong fibrinolytic activity, analyzed on fibrin zymogram, was observed at 60-96 h of cultivation. The aprESJ4 gene encoding the major fibrinolytic enzyme, AprESJ4, was cloned by PCR. The aprESJ4 gene sequence exhibited high similarities with the fibrinolytic gene sequences of other Bacillus species. The amino acid sequence of AprESJ4 exhibited 98.9 and 98.4% similarity with subtilisin NAT and AprE2 of B. subtilis, respectively. Hence, B. subtilis SJ4 can be a potential starter culture for jeotgal products.

Characterization of a Novel Fibrinolytic Enzyme, BsfA, from Bacillus subtilis ZA400 in Kimchi Reveals Its Pertinence to Thrombosis Treatment

  • Ahn, Min-Ju;Ku, Hye-Jin;Lee, Se-Hui;Lee, Ju-Hoon
    • Journal of Microbiology and Biotechnology
    • /
    • 제25권12호
    • /
    • pp.2090-2099
    • /
    • 2015
  • Recently, the cardiovascular disease has been widely problematic in humans probably due to fibrin formation via the unbalanced Western style diet. Although direct (human plasmin) and indirect methods (plasminogen activators) have been available, bacterial enzyme methods have been studied because of their cheap and mass production. To detect a novel bacterial fibrinolytic enzyme, 111 bacterial strains with fibrinolytic activity were selected from kimchi. Among them, 14 strains were selected because of their stronger activity than 0.02 U of plasmin. Their 16S rRNA sequence analysis revealed that they belong to Bacillus, Leuconostoc, Propionibacterium, Weissella, Staphylococcus, and Bifidobacterium. The strain B. subtilis ZA400, with the highest fibrinolytic activity, was selected and the gene encoding fibrinolytic enzyme (bsfA) was cloned and expressed in the E. coli overexpression system. The purified enzyme was analyzed with SDS-PAGE, western blot, and MALDI-TOF analyses, showing to be 28.4 kDa. Subsequently, the BsfA was characterized to be stable under various stress conditions such as temperature (4-40oC), metal ions (Mn2+, Ca2+, K2+, and Mg2+), and inhibitors (EDTA and SDS), suggesting that BsfA could be a good candidate for development of a novel fibrinolytic enzyme for thrombosis treatment and may even be useful as a new bacterial starter for manufacturing functional fermented foods.

Change of Fibrinolytic and Antioxidative Activities of Codonopsis lanceolata According to Various Storage Conditions, and Heat or Salt Treatments

  • ;;김준호
    • 대한의생명과학회지
    • /
    • 제11권1호
    • /
    • pp.63-69
    • /
    • 2005
  • We investigated the changes of fibrinolytic and antioxidative activities of wild or cultivated Codonopsis lanceolata, which were packed in woven polypropylene (WP) film or low density polyethylene (LDPE) film and stored for 0, 15, and 30 days at refrigerated $(2\~4^{\circ}C)$ or room $(l8\~20^{\circ}C)$ temperature (So we have 16 samples, and wrote them as the abbreviated words such as W-WP-RE-15, W-WP-RO-15, W-LDPE-RE-15, W-LDPE-RO-15, W-WP-RE-30, W-WP-RO-30, W-LDPE-RE-30, W-LDPE-RO-30, C-WP-RE-15, C-WP-RO-15, C-LDPE-RE-15, C-LDPE-RO-15, C-WP-RE-30, C-WP-RO-30, C-LDPE-RE-30, C-LDPE-RO-30). Fibrinolytic activity of fresh Codonopsis lanceolata cultivated in the mountain or field were 0.8 unit (plasmin unit/ml) or 7.3 units, respectively. In descending order, the activities of wild Codonopsis lanceolata stored for 15 days were as followed; LDPE-RE (0.70 unit), WP-RO (0.52 unit), WP-RE (0.45 unit), and LDPE-RO (0.30 unit). After 30 days, fibrinolytic activities of them decreased to 0.47 unit (LDPE-RE), 0.28 unit (WP-RO), 0.21 unit (WP-RE), and 0.30 unit (LDPE-RO). Considering from the point of fibrinolytic activity, the optimal storage condition of wild Codonopsis lanceolata was packing with LDPE film and storing at $4^{\circ}C$. The change of fibrinolytic activities of Codonopsis lanceolata cultivated in the field revealed the similar trend as wild samples, but the fibrinolytic activities of 30 days-stored samples were maintained better than the wild Codonopsis lanceolata. Fibinolytic activity of wild Codonopsis lancealata was increased by heating for 5 min at $100^{\circ}C$ and decreased by addition of NaCl. Antioxidative activities of Codonopsis lanceolata were also compared from the electron donating activity. Fresh Codonopsis lanceolata had about $70\%$ of electron donating activity. Independent of cultivation area, electron donating activity dropped to $19\~74\%$ (wild Codonopsis lanceolata) and $27\~59\%$ (cultivated Codonopsis lanceolata) during 15 days storage. But after 30 days storage, we obtained the unexpected results, which meant that the activities were higher activities than 15 days-stored samples or even though the fresh samples. In general, Codonopsis lanceolata could maintain antioxidative activities most strongly with LDPE film and chilled condition.

  • PDF