Acta Biologica Hungarica

, Volume 69, Issue 2, pp 125–134 | Cite as

Inhibition of the Formation of Amyloid-Like Fibrils Using Herbal Extracts

  • Márta KotormánEmail author
  • Zita Kelemen
  • Phanindra Babu Kasi
  • János Nemcsók


We tested the amyloid fibril formation inhibitory effect of seven teas diluted in 55% ethanol at pH 7.0 at a protein concentration of 0.15 mg/ml α-chymotrypsin. In the experiments we investigated the formation and inhibition of amyloid fibrils by turbidity measurements, aggregation kinetics experiments and Congo red binding assay. The results suggest that the different teas effectively inhibit the formation of amyloidlike fibrils. The two most potent inhibitors were peppermint and melilot, extracts which almost completely inhibited the formation of aggregates in 5-fold dilution. The inhibitory effect on the aggregation formation of melilot and peppermint extracts was concentration dependant. The extent of inhibition was found to be proportional with the total concentration of phenolic compounds.


α-Chymotrypsin amyloid fbrils melilot peppermint polyphenols 


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This work was supported by project EFOP-3.6.1-16-2016-00008.


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© Akadémiai Kiadó Zrt. 2018

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Márta Kotormán
    • 1
    Email author
  • Zita Kelemen
    • 1
  • Phanindra Babu Kasi
    • 1
    • 2
  • János Nemcsók
    • 3
  1. 1.Department of Biochemistry and Molecular Biology, Faculty of Science and InformaticsUniversity of SzegedSzegedHungary
  2. 2.Doctoral School in Biology, Faculty of Science and InformaticsUniversity of SzegedSzegedHungary
  3. 3.Department of Biology, Pedagogical FacultySelye János UniversityKomarnoSlovakia

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