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Original Articles

Some Natural Products from Two Soft Coals

Their Removal, Metal-binding and Enzyme inhibitory Activity

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Pages 182-188 | Published online: 16 Apr 2013
 

Abstract

The chemical constituents of coal have not been fully characterized in relation to the incidence of coal worker’s pneumoconiosis (CWP). In this study two soft coals obtained from mines in which workers had high and low incidences of CWP were leached with aqueous base and acid to remove their acidic and basic components. The results suggest that humic substances similar to those found in soil are present in the coal samples. Further, differences in the quantity of material removed and its metal-binding and enzyme inhibitory activity are related to disease incidence.

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