Articles
POLYPHENOL CONTENT IN WALNUT (JUGLANS REGIA L.) MATURE LEAVES
Article number
1050_26
Pages
205 – 212
Language
English
Abstract
Walnut (Juglans regia L.) leaves constitute a good source of healthy compounds, namely phenolics, suggesting that they could be useful in prevention of diseases in which free radicals are involved.
Leaves of different walnut cultivars grown in Romania were investigated as concerns phenolic compounds.
Determination of phenolic compounds was conducted at the beginning of September.
Total phenols and six phenolic compounds (ferulic acid, vanillic acid, coumaric acid, elagic acid, myricetin and juglone) were quantified.
In order to identify and quantify the phenols, the colorimetric assay and method high performance liquid chromatographic method in reverse phase (HPLC-RP) was used.
Phenolic compounds were identified in all cultivars, but quantitative differences were observed between cultivars.
Results have proved that cultivar has influence on content of phenolic compounds, while mature leaves can be a source of phenolic compounds.
Leaves of different walnut cultivars grown in Romania were investigated as concerns phenolic compounds.
Determination of phenolic compounds was conducted at the beginning of September.
Total phenols and six phenolic compounds (ferulic acid, vanillic acid, coumaric acid, elagic acid, myricetin and juglone) were quantified.
In order to identify and quantify the phenols, the colorimetric assay and method high performance liquid chromatographic method in reverse phase (HPLC-RP) was used.
Phenolic compounds were identified in all cultivars, but quantitative differences were observed between cultivars.
Results have proved that cultivar has influence on content of phenolic compounds, while mature leaves can be a source of phenolic compounds.
Publication
Authors
S. Cosmulescu, M. Botu, G. Achim, A. Baciu, M. Gruia, I. Trandafir
Keywords
phenolic compound, HPLC-RP, colorimetric assay
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