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Profiling and Quantitative Analysis of Free Oligosaccharides in Domestic Milk, Commercial Milk and Infant Formula using Mass Spectrometry

첫 페이지 보기
  • 발행기관
    한국당과학회 바로가기
  • 간행물
    한국당과학회 학술대회 바로가기
  • 통권
    ACGG 2012 Conference (2012.10)바로가기
  • 페이지
    pp.92-93
  • 저자
    Su Hee Kim, Bum Jin Kim, Jae Han Kim, Hyun Joo An
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A192916

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원문정보

초록

영어
Free Oligosaccharides in human milk (HMO) have multiple biological functions, for example, the growth of beneficial bacteria in the gut and the development of brain. It has been known that the concentration of free oligosaccharides in bovine milk and infant formula is relatively low compared with HMO. In thisstudy, we have profiled and quantified free oligosaccharides extracted from various milks and dairy products. HMO and free oligosaccharides extracted from domestic milk (bovine, porcine), commercial milk (milk, low-fat milk), four infant formulas made from goat and bovine milk were used for this study. For quantitative analysis, initially same volume 5ml of milk was taken. Extraction of free oligosaccharides was performed by following steps including the removal of lipids by Folch method and protein precipitation by ethanol. Extracted free oligosaccharides were further purified by solid phase extraction using a porous graphitized carbon cartridge.
Purified and enriched free oligosaccharides were redissolved in water prior to mass spectrometry analysis. Overall glycan profiling was obtained by MALDI-TOF/TOF MS. We found that human milk has more free oligosaccharides than the others. In addition, the ion at m/z 730.237 corresponding to [Hex]3[HexNAc]1 is the base peak while the ion at m/z 568.179 corresponding to [Hex]2[HexNAc]1 is the base peak in bovine milk. Interestingly, we found NeucGc in bovine milk as a major glycan, which is not produced in human anymore. Quantitative analysis of targeted glycans was performed by UPLC-Triple quadrupole. This study can be applied as an analytical platform to extract, profile, and quantify free oligosaccharides in milk and dairy products.

저자

  • Su Hee Kim [ Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea ]
  • Bum Jin Kim [ Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea ]
  • Jae Han Kim [ Department of Food and Nutrition, Chungnam National University, Daejeon, Korea ]
  • Hyun Joo An [ Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국당과학회 [Korean Society for Glycoscience]
  • 설립연도
    2006
  • 분야
    의약학>약학
  • 소개
    본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.

간행물

  • 간행물명
    한국당과학회 학술대회
  • 간기
    연간
  • 수록기간
    2006~2022
  • 십진분류
    KDC 517 DDC 614

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