Thin Layer Chromatography on the Influence of Hot Water Extractives of Domestic and Foreign Wood Species on the Cement Setting

국산(國産) 및 외국산(外國産) 수종(樹種)의 열수추출물(熱水抽出物)이 시멘트경화(硬化)에 미치는 영향(影響)에 대한 박층(薄層)크로마토그래피적(的) 분석(分析)

Hot water extractives of sawdust/particle from domestic and foreign wood species, which were composed of pitch pine, Korean pine, larch, Italy poplar, acacia and oak as Korean wood species, Malaysian oil palm and German spruce were quantitatively analyzed with thin layer chromatography. Sugar components of saccharose, galactose, glucose, fructose and arabinose were contained in these wood species. It was assumed that arabinose and glucose are major inhibitory components against cement hardening in larch and oil palm, respectively, since both species contain a large amount of each sugar. In contrast, fructose might not influence so badly on a cement hardening, when considering that fructose was contained much in Italy poplar with a good cement hardening character. Galactose was a minor component.