Computer Science
Scientific paper
Oct 1964
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1964gecoa..28.1537f&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 28, Issue 10-11, pp.1537-1546
Computer Science
2
Scientific paper
The occurrence of phenolic substances in the cell wall of plants is reviewed with particular reference to sphagnum moss. Chemical, ultraviolet and infrared absorption studies of the phenolic component of Sphagnum sp. show that it is distinguished from the lignin of higher plants by its ready liberation in water-soluble form by acid or alkaline hydrolysis, by its low content of guaiacyl and syringyl groups, and by its high content of p -hydroxyphenyl and carbonyl groups. Its acidity does not, however, distinguish it from the lignin of gramineous plants. Infrared spectra and the results of nitrobenzene oxidation show the presence of lignin-derived aromatic rings in the humic acid of phragmites peat. Little-altered lignin can account for 25-40 per cent of the alcohol/benzene-soluble fraction of this humic acid. The same aromatic rings are present in lower concentration in humic acids from sphagnum peats and are derived from the remains of higher plants in these peats, and not from the sphagnum itself.
Farmer Victor C.
Morrison R. I.
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