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- Title
Comparison of the Effectiveness of Water-Based Extraction of Substances from Dry Tea Leaves with the Use of Magnetic Field Assisted Extraction Techniques.
- Authors
Zaguła, Grzegorz; Bajcar, Marcin; Saletnik, Bogdan; Czernicka, Maria; Puchalski, Czesław; Kapusta, Ireneusz; Oszmiański, Jan
- Abstract
This article presents the findings of a study investigating the feasibility of using a magnetic field assisted technique for the water-based extraction of mineral components, polyphenols, and caffeine from dry black and green tea leaves. The authors present a concept of applying constant and variable magnetic fields in the process of producing water-based infusions from selected types of tea. Analyses investigating the effectiveness of the proposed technique in comparison with conventional infusion methods assessed the contents of selected mineral components--i.e., Al, Ca, Cu, K, Mg, P, S, and Zn--which were examined with the use of ICP-OES. The contents of caffeine and polyphenolic compounds were assessed using the HPLC. A changing magnetic field permitted an increased effectiveness of extraction of the mineral components, caffeine, and polyphenols. The findings support the conclusion that a changing magnetic field assisted extraction method is useful for obtaining biologically valuable components from tea infusions.
- Subjects
PLANT extracts; PLANT products; TEA extracts; POLYPHENOLS; GREEN tea
- Publication
Molecules, 2017, Vol 22, Issue 10, p1656
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules22101656