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Relation between Staudinger Indices and Precipitabilities of Polysaccharides Extracted from Forest Soils¹

ABSTRACT

Fractional precipitation of polysaccharides extracted with hot water from forest soils indicated that the organic layers contained a mixture of up to three polysaccharide fractions.

The precipitabilities of the polysaccharide fractions ranged between 0.48 and 0.74 and the Staudinger indices had a range of 70 to 150. The precipitabilities and the Staudinger indices were inversely related in a linear fashion.

¹ A joint publication of Canada Dept. of Agriculture and Canada Dept. of Forestry & Rural Development, Fredericton, N.B.

² Research Scientist, Canada Dept. of Agriculture and Research Officer, Canada Dept. of Forestry & Rural Development, respectively.

Received for publication February 7, 1969. Accepted for publication May 27, 1969.