Korean Journal of Food Science and Technology (한국식품과학회지)
- Volume 29 Issue 6
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- Pages.1105-1112
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- 1997
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- 0367-6293(pISSN)
Structural Analysis of the Unusual Sugar-Containing Oligosaccharides Formed by the Selective Cleavage of Weakly Acidic Polysaccharide
약산성 다당의 선택적 분해 과정에서 얻어진 특이당 함유 Oligo당의 구조적 분석
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Shin, Kwang-Soon
(Department of Foods and Biotechnology, Kyonggi University) ;
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Lee, Ho
(Department of Foods and Biotechnology, Kyonggi University)
- Published : 1997.12.01
Abstract
By sequential degradation using partial acid hydrolysis of a weakly acidic polysaccharide (GL-4IIb2'), two acidic oligosaccharide fragments, PA-2' and PA-1-III were isolated and their structures were characterized. PA-2' consisted of almost equal proportion of a rhamnose (Rha) and an unusual sugar, 3-deoxy-D-manno-2-octurosonic acid (Kdo). When permethylated oligosaccharide-alditol derived from PA-2' was analyzed by GC-MS, the peak gave the fragment ions at m/z 189
약산성 다당 GL-4IIb2'에 대해 연속적 부분 산가수 분해 과정을 거쳐, 2종의 oligo당 획분 PA-2' 및 PA-1-III를 분리하고 그들의 구조분석을 행하였다. PA-2'는 주요 구성당으로 Rha 와 특이당 Kdo를 동일한 비율로 함유하고 있었으며, permethylated oligosaccharide-alditol로 전환시켜, GC-MS로 분석한 결과, m/z 189