Monosaccharide composition of four humus fractions in an Andosol and a Cambisol

Autor:	Kiyoshi Tsutsuki, Akira Watanabe, Kazuhito Itoh, Shozo Kuwatsuka
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Arabinose Cambisol Chromatography Rhamnose Soil Science Plant Science Xylose complex mixtures Fucose Humus chemistry.chemical_compound chemistry Humin Monosaccharide
Zdroj:	Soil Science and Plant Nutrition. 53:7-11
ISSN:	1747-0765 0038-0768
DOI:	10.1111/j.1747-0765.2007.00111.x
Popis:	The composition of seven neutral monosaccharides (glucose, galactose, mannose, xylose, arabinose, fucose and rhamnose) released by acid hydrolysis with 0.5 mol L−1 H2SO4 was compared among four humus fractions, including humic acids (HAs), fulvic acids (FAs), water-soluble non-humic substances (WS-NHS; XAD-8-non-adsorbed fraction of the FA fraction) and humin, for two representative types of Japanese soils, an Umbric Andosol (ando soil) and a Dystric Cambisol (brown forest soil). Although more than 58% of the hexoses and pentoses in the soil were recovered in humin, 29–57% of fucose and rhamnose were found in WS-NHS. In the principal component analysis, humin was separated from the other three fractions because of larger proportions of glucose and xylose and smaller proportions of fucose and rhamnose. The HAs contained a larger proportion of arabinose than the other fractions. The monosaccharide composition of the FAs and WS-NHS was similar in each soil type. As deoxyhexoses and pentoses in soil ...
Databáze:	OpenAIRE
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