Mild hydrolysis and alcohol compounds of humic acids

Dou Sen (1) , Eric Lichtfouse (2) , André A. Mariotti (3)

1 Jilin Normal University
2 ASD - Agronomy for Sustainable Development
3 Bioemco - Biogéochimie et écologie des milieux continentaux

Alcohol compounds of humic acid (HA) hydrolyzed products were studied by using alkaline mild hydrolysis, thin layer chromatography (TLC) and GC—MC. The results showed that the alcohols content in HA hydrolyzed products were saturated alcohol＞sterol＞unsaturated linear alcohol. Saturated alcohols were mainly even-number carbon of C20～30 and C15; Unsaturated linear alcohols were mainly C20-1π, C20-2πand C19-4π. HAs from soils under C3 and C4 plant cultivation were different in some aspects. C3-HA contained more unsaturated alcohol, whereas C4-HA contained more saturated alcohol (especially C12 and C26).

Mots clés: soil; humic acids; alcohols; hydrolysis; sterols; n-alkanols

Domaines: Science des sols

Dou Sen, Eric Lichtfouse, André A. Mariotti. Mild hydrolysis and alcohol compounds of humic acids. Chinese Journal of Soil Science, 2002, 33, pp.17-20. ⟨hal-00264070⟩