Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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The Classification, Origin, Collection, Determination of Activity, Purification, Production, and Application of Agarases

Agarase의 분류, 기원, 확보, 활성파악, 분리정제, 생산 및 응용

  • Lee, Dong-Geun (Department of Pharmaceutical Engineering, Silla University) ;
  • Lee, Sang-Hyeon (Department of Pharmaceutical Engineering, Silla University)
  • 이동근 (신라대학교 의생명과학대학 제약공학과) ;
  • 이상현 (신라대학교 의생명과학대학 제약공학과)
  • Received : 2012.01.31
  • Accepted : 2012.02.09
  • Published : 2012.02.28
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Abstract

Agar is a cell wall component of macro red algae that can be hydrolyzed by agarase. Agarases are classified into ${\alpha}$-agarase (E.C. 3.2.1.158) and ${\beta}$-agarase (E.C. 3.2.1.81), in accordance with their cleavage pattern, and can be grouped in the glycoside hydrolase (GH)-16, -58, -86, -96, and -118 family according to the amino acid sequences of the proteins. Many agarases and/or their genes have been detected, isolated, and recombinantly expressed from bacteria, and metagenomes have their origins in sea and terrestrial environments. Products of agarases, agarooligosaccharides and neoagarooligosaccharides, represent wide functions such as antitumor, immune stimulation, antioxidation, prebiotic, hepa-protective, antibacterial, whitening, and moisturizing effects; hence, broad applications would be possible in the food industry, cosmetics, and medical fields. In addition, agarases are also used as a tool enzyme for research. This paper reviews the sources, purifications and detection methods, and application fields of agarases. The role of agarases in agar metabolism and the function of their enzymatic products are also surveyed.

한천은 거대 홍조류의 세포벽 성분으로 agarase에 의해 가수분해된다. Agarase는 분해 양상에 따라 ${\alpha}$-agarase (E.C. 3.2.1.158)와 ${\beta}$-agarase (E.C. 3.2.1.81)로 나눌 수 있으며 아미노산 서열 유사성에 따라 GH (glycoside hydrolase) -16, -58, -86, -96, -118 로 나눌 수 있다. 많은 agarase들이나 그들의 유전자가 바다나 육지 환경의 세균 혹은 메타게놈에서 검출, 분리, 재조합 발현되었다. Agarase의 산물인 한천올리고당(agarooligosaccharides)과 네오한 천올리고당(neoagarooligosaccharides)은 항암, 면역활성, 항산화, 장내유용세균활성화, 간보호, 항균, 미백, 보습의 효과 등 다양한 기능성이 보고되어 식품, 화장품, 의학 영역에서 광범위하게 이용될 수 있다. 또한 agarase는 연구영역에서 이용될 수 있다. 이 논문은 agarase의 검출원, 정제법, 검출법 그리고 응용영역에 대해 검토하였고, 한천대사에서 agarase의 역할, 대사산물의 기능 등도 고찰하였다.

Keywords

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