Separation of Phenolic Compounds in Alkali Hydrolysates of a Forest Soil by Thin-Layer Chromatography

Abstract

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Phenols, Aromatic Carboxylic Acids, and Indoles

“…Alkaline hydrolysis of forest soils followed by recovery of phenolic acids has been used (14). Leaf extracts of 33 varieties of Ribes nigrum were hydrolyzed to liberate the phenolic acids (15).…”

Transformation of low molecular compounds and soil humic acid by two domain laccase of Streptomyces puniceus in the presence of ferulic and caffeic acids

“…The aim of this work was to study the role of natural phenolic compounds-ferulic acid (FA) and caffeic acid (CA)-in the transformation of low molecular weight substrates and soil humic acid by two-domain bacterial laccase. Ferulic and caffeic acids have been chosen for the study since they are widely distributed in nature, exist in a free form in the plant cell wall [35][36][37] and in the soil solutions as product of lignin breakdown [38]. A new member of the family of two-domain laccases, the enzyme from soil bacterium Streptomyces puniceus (designated as SpSL) was used.…”

Ecology Of Actinorhizal Plants

“…Similarly, the wide-ranging actinorhizal shrub, P. tridentata (bitterbrush), which is the most important browse species for wildlife and livestock in the intermountain west of North America, has populations with varying phenolic contents, particularly in response to browsing (Paschke, 1997). Alder root tissue is also high in phenolics, and alders have been observed to decrease the incidence of fungal root pathogens in associated Douglas fir (Li et al, 1970;1972).…”

“…Important compounds that may influence the interaction between plants and soil microorganisms include the phenolics in plant tissue (Harborne, 1973) and soils (Li et al, 1970;Shindo et al, 1978;Whitehead, 1964;Whitehead et al, 1983). Various phenolics significantly stimulate or inhibit the in vitro growth of Frankia strains and also alter their morphological development (Perradin et al, 1983;Vogel and Dawson, 1986).…”