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Purification and Enzymatic Properties of a Novel Extracellular Protease from Bacillus subtilis RKY3

첫 페이지 보기
  • 발행기관
    한국생물공학회 바로가기
  • 간행물
    한국생물공학회 학술대회 바로가기
  • 통권
    2010 추계학술대회 및 국제심포지움 (2010.10)바로가기
  • 페이지
    pp.175-175
  • 저자
    Se Hee SONG, Young-Jung WEE, L. Veeranjaneya REDDY, Hwa-Won RYU
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A129311

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원문정보

초록

영어
Protease (EC 3.4.21) catalyzes the cleavage of the peptide bonds in proteins, and it is found in a wide variety of microorganisms. The application of alkaline protease has increased in foods, leathers, pharmaceuticals, bioremediations, and textiles.1) Bacterial protease has become one of the largest classes of industrial enzymes, accounting for 60% of the total global enzyme sales.2) Microbial proteases represent a good source of enzymes due to their broad biochemical diversity, the rapid growth of microorganisms, the limited space for cultivation, and the easy manipulation of cells for the production of novel enzymes.This study aims to conduct purification and characterization of protease from Bacillus subtilis RKY3. The protease produced by B. subtilis RKY3 was purified in two steps including ammonium sulfate precipitation and anion exchange chromatography. Molecular weight of the purified protease was approximately 38 kDa. The purified protease was stable over a broad pH range from 5.0 to 11.0, and it exhibited a relatively high activity at a broad range of pH between 7.0 and 9.0. The optimum temperature for enzyme activity was 60℃, but the activity was sharply deactivated beyond 60℃. The purified protease was found to be serine protease because the enzyme activity was almost inhibited by 1 mM of PMSF. It was stable with oxidants (H2O2), reducing agents (SDS), and organic solvents (bezene, hexane, and toluene). The protease purified in this study has a possibility to be used in detergent and bleaching industries.

키워드

protease Bacillus subtilis detergent organic solvent purification

저자

  • Se Hee SONG [ Department of Food Science and Technology, Yeungnam University, Gyeongbuk, 712-749. ]
  • L. Veeranjaneya REDDY [ Department of Microbiology, Yogi Vemana University, Kadapa, AP. ]
  • Hwa-Won RYU [ School of Biological Sciences and Technology, Chonnam National University, Gwangju, 500-757. ]
  • Young-Jung WEE [ Department of Food Science and Technology, Yeungnam University, Gyeongbuk, 712-749. ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
  • 설립연도
    1984
  • 분야
    공학>생물공학
  • 소개
    이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다 1. 생물공학 분야의 발전을 위한 연구 협력 2. 생물공학의 실용화를 촉진시키기 위한 산학 협동 3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최 4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간 5. 생물공학 발전을 위한 정책 건의 6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동

간행물

  • 간행물명
    한국생물공학회 학술대회
  • 간기
    반년간
  • 수록기간
    1985~2013
  • 십진분류
    KDC 476 DDC 576

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