Antioxidant potential, tannin and polyphenol contents of seed and pericarp of three Coffea species

Éva Brigitta Patay, Nikolett Sali, T. Kőszegi, Rita Csepregi, Viktória Lilla Balázs, Tibor Sebastian Németh, Tibor Németh, Nóra Papp

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Objective: To investigate the antioxidant activity, total phenolic and total tannin content of the pericarp and the seed of Coffea benghalensis (C. benghalensis) and Coffea liberica compared to Coffea arabica (C. arabica). Methods: The antioxidant potential, total tannin and polyphenol contents of the immature and mature seed and pericarp of C. benghalensis and Coffea liberica were quantified and compared to C. arabica. Enhanced chemiluminescence (ECL), 2,2-diphenyl-1-picrylhydrazyl (DPPH), oxygen radical absorbance capacity, Folin-Ciocalteau method and total tannin content assays were used. Results: Trolox equivalent (TE/g plant material) values obtained by ECL and DPPH methods showed loose correlation (r2 = 0.587) while those measured by oxygen radical absorbance capacity assay were higher without correlation in each plant. A closer correlation was detected between the ECL method and the percentage antioxidant activity of the DPPH technique (r2 = 0.610 7) in each species, however the immature pericarp of C. benghalensis showed much higher DPPH scavenging potential than was seen in the ECL assay. The immature pericarp of C. benghalensis expressed the highest tannin and polyphenol content, and a high polyphenol level was also detected in the immature seed of C. arabica. The immature pericarp of Bengal and Liberian coffees showed the largest amount of phenolic contents. Conclusions: The obtained data highlight the potential role of C. benghalensis as a new source of natural antioxidants and polyphenols compared to C. arabica.

Original languageEnglish
Pages (from-to)366-371
Number of pages6
JournalAsian Pacific Journal of Tropical Medicine
Volume9
Issue number4
DOIs
Publication statusPublished - Apr 1 2016

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Coffea
Tannins
Polyphenols
Seeds
Antioxidants
Luminescence
Coffee

Keywords

  • 2,2-Diphenyl-1-picrylhydrazyl
  • Coffee
  • Enhanced chemiluminescence
  • Folin-Ciocalteau
  • Oxygen radical absorbance capacity
  • Total tannin method

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Antioxidant potential, tannin and polyphenol contents of seed and pericarp of three Coffea species. / Patay, Éva Brigitta; Sali, Nikolett; Kőszegi, T.; Csepregi, Rita; Balázs, Viktória Lilla; Németh, Tibor Sebastian; Németh, Tibor; Papp, Nóra.

In: Asian Pacific Journal of Tropical Medicine, Vol. 9, No. 4, 01.04.2016, p. 366-371.

Research output: Contribution to journalArticle

Patay, Éva Brigitta ; Sali, Nikolett ; Kőszegi, T. ; Csepregi, Rita ; Balázs, Viktória Lilla ; Németh, Tibor Sebastian ; Németh, Tibor ; Papp, Nóra. / Antioxidant potential, tannin and polyphenol contents of seed and pericarp of three Coffea species. In: Asian Pacific Journal of Tropical Medicine. 2016 ; Vol. 9, No. 4. pp. 366-371.
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AU - Sali, Nikolett

AU - Kőszegi, T.

AU - Csepregi, Rita

AU - Balázs, Viktória Lilla

AU - Németh, Tibor Sebastian

AU - Németh, Tibor

AU - Papp, Nóra

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