TY - JOUR
T1 - The phenolic acid content of cashew leaves (Anacardium occidentale L.) and of the associated humus layer, Senegal
AU - Kögel, Ingrid
AU - Zech, Wolfgang
N1 - Funding Information:
The authors are indepted to R. Behrens, Proj& Anacardier Senegalo-Allemand, Sokone, and to Dr. R. Bochter, University of Bayreuth, for their help during collection of the samples. Appreciation is expressed to the Deutsche Forschungsgemeinschaft (SFB 137) for financial support of this work.
PY - 1985/6
Y1 - 1985/6
N2 - Phenolic acid content was studied in NaOH- and water-extracts from cashew leaves and from the associated humus profile. Free and bound forms of water-soluble phenolic acids were evaluated separately. Phenolic acid composition in the humus layers is to a high degree determined by the phenolic substances inherited from the leaves. Alkali- and water-extracts were dominated by gallic acid, because of the high contents of hydrolisable gallotannin in cashew leaves. Gallic, protocatechuic, p-hydroxybenzoic, cinnamic, p-coumaric and ferulic acids were derived from the leaves, whereas vanillic acid only occurred in the soil. Considerable proportions of the total phenolic acids are water-soluble and lost by leaching from the humus layers.
AB - Phenolic acid content was studied in NaOH- and water-extracts from cashew leaves and from the associated humus profile. Free and bound forms of water-soluble phenolic acids were evaluated separately. Phenolic acid composition in the humus layers is to a high degree determined by the phenolic substances inherited from the leaves. Alkali- and water-extracts were dominated by gallic acid, because of the high contents of hydrolisable gallotannin in cashew leaves. Gallic, protocatechuic, p-hydroxybenzoic, cinnamic, p-coumaric and ferulic acids were derived from the leaves, whereas vanillic acid only occurred in the soil. Considerable proportions of the total phenolic acids are water-soluble and lost by leaching from the humus layers.
UR - http://www.scopus.com/inward/record.url?scp=0022251888&partnerID=8YFLogxK
U2 - 10.1016/0016-7061(85)90025-4
DO - 10.1016/0016-7061(85)90025-4
M3 - Article
AN - SCOPUS:0022251888
SN - 0016-7061
VL - 35
SP - 119
EP - 125
JO - Geoderma
JF - Geoderma
IS - 2
ER -