Effect of particle size upon the extent of extraction of antioxidant power from the plants Agrimonia eupatoria, Salvia sp. and Satureja montana

نویسندگان

  • Maria S. Gião
  • Cláudia I. Pereira
  • Susana C. Fonseca
  • Manuela E. Pintado
  • F. Xavier Malcata
چکیده

s extra nt med of extr e minim ected, a ecomm as caffe s devel genera for eac The dependence of the extent of aqueou tact time was studied for three importa mony, sage and savoury. The effect however, ca. 5 min can be taken as th extraction of those compounds. As exp a typical value of 0.2 mm is accordingly r pound extracted from agrimony, where ematical model based on Fick’s law wa suitably fitted to the experimental data capacity extracted during contact time, * Corresponding author. Tel.: +351 22 5580004; fax E-mail address: [email protected] (F.X. Malcat ction of antioxidant compounds on particle size and conicinal plants, that are commonly used in infusions: agriaction time was dependent on the plant considered; um period required to assure an acceptable degree of smaller particle size led to a higher extraction extents; ended. Chlorogenic acid was the dominant phenolic comic acid dominated in the case of sage or savoury. A mathoped from first principles, and its two parameters were ted – in attempts to predict the evolution of antioxidant h plant and each particle size.

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تاریخ انتشار 2009