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United States Department of Agriculture

Agricultural Research Service

Title: Significance of Sample Preparation in Accurate Estimation of Phenolic Phytochemicals in Foods and Food Products


Submitted to: International Conference of Polyphenols
Publication Type: Abstract Only
Publication Acceptance Date: July 1, 2006
Publication Date: August 1, 2006
Citation: Luthria, D.L. 2006. Significance of sample preparation in accurate estimation of phenolic phytochemicals in foods and food products. International Conference of Polyphenols. 2006:353-354.

Technical Abstract: The extractability of the phenolic compounds is influenced by their chemical structure, degree of polymerization, and interaction with other components in the matrix. This talk describes the influence of sample preparation parameters (extraction techniques, extraction solvents, temperature, pressure, particle size, number of extraction cycles, and solid-to-solvent ratio) in developing analytical methods for accurate estimation of bioactive phenolic compounds present in the foods using parsley flakes as a model substrate.

Last Modified: 4/22/2015
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