Bound phenolic compounds in water extracts of soils, plant roots and leaf litter

Seven soils were examined for their contents of p-hydroxybenzoic, vanillic, p-coumaric and ferulic acids, p-hydroxybenzaldehyde and vanillin. Water-soluble forms, both “free” and “bound” of the phenolic compounds accounted for less than 0.7% of the total amount of each acid or aldehyde as determined...

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Veröffentlicht in:Soil biology & biochemistry 1983, Vol.15 (2), p.133-136
Hauptverfasser: Whitehead, D.C., Dibb, Hazel, Hartley, R.D.
Format: Artikel
Sprache:eng
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Zusammenfassung:Seven soils were examined for their contents of p-hydroxybenzoic, vanillic, p-coumaric and ferulic acids, p-hydroxybenzaldehyde and vanillin. Water-soluble forms, both “free” and “bound” of the phenolic compounds accounted for less than 0.7% of the total amount of each acid or aldehyde as determined by extraction of the soil with 2 M NaOH. In most instances, more than 50% of the water-soluble compounds were in the bound form, which was estimated after conversion to the free form by treatment of the water extract with NaOH. Water-soluble forms, both free and bound, of each compound also occurred in roots associated with six of the soils, and in beech litter associated with the seventh.
ISSN:0038-0717
1879-3428
DOI:10.1016/0038-0717(83)90092-5