Properties and Functions of Melanin Pigment from Klebsiella sp. GSK
분야
자연과학 > 생물
저자
( Sajjan ) , ( Shrishailnath S ) , ( Anjaneya O ) , ( Guruprasad B Kulkarni ) , ( Anand S Nayak ) , ( Suresh B Mashetty ) , ( T B Karegoudar )
발행기관
한국미생물생명공학회(구 한국산업미생물학회)
간행물정보
한국미생물·생명공학회지 2013년, 제41권 제1호, 60~69페이지(총10페이지)
파일형식
05212169.pdf [무료 PDF 뷰어 다운로드]
  • ※ 본 자료는 참고용 논문으로 수정 및 텍스트 복사가 되지 않습니다.
  • 구매가격
    4,500원
    적립금
    135원 (구매자료 3% 적립)
    이메일 발송  스크랩 하기
    자료 다운로드  네이버 로그인
    영문초록
    Purified melanin pigment from Klebsiella sp. GSK was characterized by thermogravimetric, differential thermal, X ray diffraction and elemental analysis. This melanin pigment is structurally amorphous in nature. It is thermally stable up to 300oC and emits a strong exothermic peak at 700oC. Its carbon, hydrogen and nitrogen composition is 47.9%, 6.9% and 12.0%, respectively. It was used to scavenge metal ions and free radicals. After immobilizing the pigment and using it to adsorb copper and lead ions, the metal ion adsorption capacity was evaluated by atomic absorption spectroscopy (AAS) and the identity of melanin functional groups involved in the binding of metal ions was determined by Fourier transform infrared (FT-IR) spectroscopy. Batch adsorption studies showed that 169 mg/g of copper and 280 mg/g of lead were adsorbed onto melanin-alginate beads. The metal ion adsorption capacity of the melanin-alginate beads was relatively significant compared to alginate beads. The metal ion desorption capacity of HCl was greater (81.5% and 99% for copper and lead, respectively) than that of EDTA (80% and 71% for copper and lead, respectively). The ability of the melanin pigment to scavenge free radicals was evaluated by inhibition of the oxidation of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2`-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and was shown to be about 74% and 98%, respectively, compared with standard antioxidants.
    사업자등록번호 220-87-87785 대표.신현웅 주소.서울시 서초구 방배로10길 18, 402호 대표전화.070-8809-9397
    개인정보책임자.박정아 통신판매업신고번호 제2017-서울서초-1765호 이메일 help@reportshop.co.kr
    copyright (c) 2009 happynlife. steel All reserved.