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FRANGU, A. -- ASHRAFI, A. -- SÝS, M. -- ARBNESHI, T. -- METELKA, R. -- ADAM, V. -- VLČEK, M. -- RICHTERA, L. Determination of trolox equivalent antioxidant capacity in berries using amperometric tyrosinase biosensor based on multi-walled carbon nanotubes. Applied Sciences. 2020. v. 10, no. 7, ISSN 2076-3417. URL: https://doi.org/10.3390/app10072497

Original name:
Determination of trolox equivalent antioxidant capacity in berries using amperometric tyrosinase biosensor based on multi-walled carbon nanotubes
Czech name:
Written by (author):
Arbër Frangu
Amirmansoor Ashrafi, MSc., Ph.D.
Milan Sýs
Tahir Arbneshi
Radovan Metelka
prof. RNDr. Vojtěch Adam, Ph.D.
doc. et doc. Milan Vlček
RNDr. Lukáš Richtera, Ph.D.
Department:
CEITEC MENDELU
Department of Chemistry and Biochemistry
Kind of publication: article in a professional periodical
Periodical:
Applied Sciences
Nature of article:
paper
Volume no. (year): 10
Periodical number within the volume: 7
Year of publication:
2020
Starting page:
Up to page:
Number of pages:
13
Sub-specification:
článek je obsažen v databázi Web of Science
UT code by Web of Science:
EID code by Scopus:
Form of publication:
printed version
Original language:
English
Description in original language:
In this contribution, Trolox equivalent antioxidant capacity (TEAC) was determined in various berries using carbon paste tyrosinase biosensor with multi-walled carbon nanotubes (MWCNTs), coated with Nafion(R) layer. Electrochemical behaviour of the biosensor and influence of MWCNTs on carbon paste surface were studied with respect to the sensitive amperometric detection of total content of phenolic compounds in berries, expressed as concentration equivalent of Trolox. After optimization of key instrumental and electroanalytical parameters, the biosensor was used for determination of TEAC in blackberries, blueberries, cranberries, raspberries and strawberries by method of multiple standard additions. Electrochemical TEAC assays corresponded well with results obtained by spectrophotometric 1,1-diphenyl-2-picrylhydrazyl radical method, known as DPPH assay. Obtained values were compared with those listed in the National Nutrient Database for additional antioxidant capacity assays as well.
Description in English:
Description in Czech:
Year of submission:
2020
Year of transmission:
RIV identification number:
URL: https://doi.org/10.3390/app10072497
 
Entry made by:
Last change:
04/27/2020 10:21 (Markéta Hejčová, DiS.)

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Source specification:

Applied Sciences. Basel: ISSN 2076-3417.

Original name:
Applied Sciences
Czech name:
Written by (author):
Kind of publication:
magazine
ISSN:
2076-3417
Country of publisher:
Swiss Confederation
Place of publishing:
Basel
Publisher:
MDPI AG (Multidisciplinary Digital Publishing Institute-MDPI)
URL:
Reviewed magazine:
no
Original language: English
Description in original language:
Description in English:
Description in Czech:
 
Entry made by:
Last change: 08/09/2019 08:54 (Šárka Novotná)

Evaluation of publication:

1
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34
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uninteresting
 
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amateur
 
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