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BARTÁKOVÁ, M. -- DVOŘÁČKOVÁ, E. -- CHROMCOVÁ, L. -- HRDLIČKA, P. Simple phenols in tropical woods determined by UHPLC-PDA and their antioxidant capacities: an experimental design for Randall extraction using environmentally friendly solvents. Journal of Forestry Research. 2020. v. 31, no. 3, p. 819--826. ISSN 1007-662X. URL: https://link.springer.com/article/10.1007%2Fs11676-019-00900-5

Original name:
Simple phenols in tropical woods determined by UHPLC-PDA and their antioxidant capacities: an experimental design for Randall extraction using environmentally friendly solvents
Czech name:
Written by (author): Ing. Marie Bartáková, Ph.D.
RNDr. Eva Dvořáčková, Ph.D.
Mgr. Lucie Chromcová, Ph.D.
doc. RNDr. Petr Hrdlička, CSc.
Department:
Department of Chemistry and Biochemistry
Kind of publication:
article in a professional periodical
Periodical: Journal of Forestry Research
Nature of article:
paper
Volume no. (year):
31
Periodical number within the volume: 3
Year of publication:
2020
Starting page:
819
Up to page:
826
Number of pages:
8
Sub-specification:
UT code by Web of Science:
EID code by Scopus:
Form of publication: printed version
Original language:
English
Description in original language: A comprehensive experimental design was developed to determine suitable conditions (volume, percentage of solvent, extraction temperature) for the ethanol extraction of phenolic compounds from ten tropical woody plants. Wenge, angelim vermelho, zebrano, merbau, tigerwood, angelim pedra, jatoba, angelim amargoso, massaranduba, and doussie woods were used in experiments. The effects of three independent variables and their interactions on the yields of cinnamic and benzoic acid derivates were analyzed using UHPLC-PDA. The most significant parameters were found to be solvent percentage, extraction volume, and extraction temperature. Optimal conditions for the extraction of phenolic compound contents were an 80 oC extraction temperature, a 30 mL extraction volume, and the use of pure water as the extraction solvent. The tested species of woods contained mainly cinnamic acid derivates. Water extracts after hydrolysis contained greater amounts of cinnamic acid derivates than those extracts from non-hydrolyzed material. The total phenolics content was highest in water extracts of tigerwood, wenge and merbau; however, the extract of merbau wood was a stronger radical scavenger in ABTS +. assays: 34.11 +- 0.02 mM Trolox equivalents per g of dry extract. The main compounds possessing antioxidant activity in the extracts of vermelho wood assessed by UHPLC analysis were hydroxycinnamic acids.
Description in English:
Description in Czech:
Year of submission:
2020
Year of transmission:
RIV identification number:
URL:
https://link.springer.com/article/10.1007%2Fs11676-019-00900-5
 
Entry made by: Markéta Hejčová, DiS.
Last change:
05/04/2020 08:20 (Markéta Hejčová, DiS.)

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Source specification:

Journal of Forestry Research. ISSN 1007-662X.

Original name:
Journal of Forestry Research
English name:
Czech name:
Written by (author):
Kind of publication:
magazine
ISSN:
1007-662X
Country of publisher:
People's Republic of China
Place of publishing:
Publisher: Northeast Forestry University (Dongbei Linye Daxue)
URL:
Reviewed magazine:
no
Original language:
Description in original language:
Description in English:
Description in Czech:
 
Entry made by:
Last change:
03/14/2012 20:48 (Ing. Aleš Kutín)

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