Abstract
To elucidate food value and medicinal effect of sea cucumbers, sugar composition of those gly-coprotein and chondroitin sulfate was studied. The contents of sulfate esters in sea cucumbers were 1.21%(blue), 0.90%(red) and 1.19%(black). Predominant carbohydrates were identified as fucose, glucose, D-mannuronic acid and N-acetylglucosamine, and those amount was more than 80% to total carbo-hydrate, while the minor sugar composition was ribose, mannose, galactose, N-acetylgalactosamine and D-glucuronic acid. Also, the major carbohydrate moiety of glycoproteins of sea cucumbers was revealed as fucose, mannose, N-acetylglucosamine, glucose and ribose, and those amount was more than 86% to total carbohydrate. Galactose, N-acetylgalactosamine, D-glucuronic acid and mannuronic acid were minor carbohydrate moiety. The contents of sulfate esters in glycoproteins were 0.96% for blue sea cucumber, 1.15% for red sea cucumber and 1.13% for black sea cucumber, while those in chondroitin sulfates were 3.52%(blue), 3.60%(red) and 3.72%(black). The carbohydrate moiety of chondroitin sulfate was identified as N-acetylgalactosamine (73~ 87%), fucose (7~15%) and D-glucuronic acid(5~12%). As the base on the IR spectrum of strong absorption appeared in 1240$cm^{-1}$ / for stretching vibrations in S=0 group and weak absorptions in 850$cm^{-1}$ / and 820$cm^{-1}$ /for stretching vibrations in C-0-S group, chondroitin sulfates had sulfate group which was bound to $C_4$in fucose.
식용 및 약용으로 이용한 역사가 오래인데도 불구하고 구성성분의 조성에 대하여 충분한 연구가 되어 있지 않은 해삼에서 당단백질과 황산콘드로이친을 추출정량하여 이들의 화학적 조성과 구조적 특성을 GC. MS및 IR로 검토하였다. 동결건조 해삼분말의 화학적인 조성은 sulfate esters함량이 0.90~l.21%, 다당류 함량이 23.08~26.97%였고 이를 구성하고 있는 구성단당류는 fucose의 함량이 30%이상을 차지하는 것을 비롯하여 glucose, N-acetylglucosamine, mannuronic acid, ribose의 5종이 거의 88%이상을 차지하고 있었고 그외 mannose, galactose, N-acetylgalactosaminne, D-glucuronic acid도 소량 검출되었다. 추출당단백질의 sulfate esters의 함량은 0.96~l.13%, 다당류의 함량은 58.7%~62.7%로 나타나고 주요 구성당은 fucose가 30%내외로 가장 많았으며 mannose, glucose와 ribose가 86%이상을 차지하며 galactose, N-acetylgalactosamine, D-glucuronic acid, N-acetylglucosamine도 소량 함유하고 있었다. 동결건조 해삼분말에서 추출한 황산콘드이친의 황산기의 함량은 3.52~3.72%이었다. 이들의 구성성분은 fucose, N-acetylgalactosamine 및 D-glucuronic acid 이며 IR spectrum에서 1240$cm^{-1}$ /의 S=0신축진동과 850$cm^{-1}$ /나 820$cm^{-1}$ /의 C-O-S 신축진동이 나타나 fucose의 $C_4$의 결합위치를 나타내고 있었다.