• Title/Summary/Keyword: $^1H-NMR$ spcetroscopy

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$^{1}H-NMR$ Spectroscopic Evidence on the Glycosidic Linkages of the Transglycosylated Products of Low-Molecular-weight 1,4-$\beta$-D-Glucan Glucanohydrolase from Trichoderma koningii (Trichoderma koningii에서 분리한 저분자 1, 4-$\beta$-D-Glucan Glucanohydrolase의 반응산물에 대한 핵자기공명 스펙트럼 분석)

  • 맹필재;강사욱;정춘수;홍순우;하영칠;이영하;김재헌
    • Korean Journal of Microbiology
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    • v.25 no.4
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    • pp.304-308
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    • 1987

  • The mode of transglycosylation reaction observed during the action of low-molecular-weight 1,4-$\beta$-D-glucan glucanohydrolase (EC 3.2.1.4) purified from Trichoderma koningii ATCC 26113 was investigated using $^{1}H-NMR $spectroscopy. The H-1 proton resonances were analysed. After reaction of the enzyme with cellotriose, the reaction products were separated by high performance liquid chromatography. H-1 resonances of the products were consisted with those of cellobiose, cellotriose and cellotitraose, respectively. Therefore it was proved that all the reaction products formed by the action of the enzyme on cellooligosaccharides, including transglycosylation products, possess only H-NMR -1,4-glycosidic linkage(s).

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