Browse > Article

Glycoprotein in the Fruit Body of Sarcodon aspratus  

Cho, Nam-Seok (Wood and Paper Science, School of Forest Resources, Chungbuk National University)
Choi, Tae-Ho (Wood and Paper Science, School of Forest Resources, Chungbuk National University)
Cho, Hee-Yeon (Section of Molecular & Cellular Biology, University of California Davis)
Leonowicz, Andrzej (Department of Biochemistry, Maria Curie-Sklodowska University)
Publication Information
Journal of the Korean Wood Science and Technology / v.32, no.5, 2004 , pp. 51-58 More about this Journal
Abstract
This study was performed to investigate compositions of inorganic elements, amino acids and glycoprotein fractions as biological substances in fruit body of Sarcodon aspratus. The fruit body of Sarcodon aspratus contained Ca, Mg, Zn, Mn, Fe, Cu, and Pb, in particular high Ca and Na. Hot water extracts consisted of 54% of polysaccharide fraction and 32.6% of protein. In amino acids composition, fourteen free amino acids were detected, mainly glutamic acid, alanine and arginine. Fifteen kinds of total amino acids were contained with major components of glutamic acid, aspartic acid, serine and threonine. Concerned to glycoprotein extraction, 95% ethyl alcohol concentration gave the highest yields with 70.6% sugar fraction, 332% glycoprotein. Different ethyl alcohol concentration resulted in different protein precipitations, and lower concentration ethyl alcohol in the range of 30 to 70% gave more than 92% of higher sugar fraction. Crude glycoprotein (GP) was fractionated by P fraction of more than MW 300,000, P-1 fraction unadsorbed by DEAE-Sephadex, P-2 fractionated from P-1 by Sepharose 2B gel chromatography and P-3 fraction adsorbed by DEAE-Sephadex. Total sugars were increased and protein contents decreased during fractionation. GP and P-3 contained glucose, galactose, mannose and fucose. GP had high glucose with high contents of glutamic acid, serine, alanine and glycine. P-3 fraction contained high mannose with aspartic acid, glutamic acid, and glycine. P-2 fraction was 700,000 MW with high glucose and fucose, and low protein of 1.1%, high amounts of aspartic acid, glutamic acid and alanine, but no mannose and no cysteine.
Keywords
Sarcodon aspratus (Berk.); glycoprotein; aminoacids; polysaccharide; fractionation;
Citations & Related Records
연도 인용수 순위
  • Reference