Matches in SemOpenAlex for { <https://semopenalex.org/work/W2328984836> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W2328984836 abstract "The barks and leaves of Juglans regia L. are widely used in Tunisia to maintain good oral hygiene and are known to possess high therapeutic effects. In this paper, and for the first time, we report the reversed phase-high performance liquid chromatography (RP-HPLC) identification of polyphenols in the ethyl acetate extract obtained from the barks of J. regia L.and we tested its antioxidant properties. The results showed that the ethyl acetate extract possess high antioxidant activities comparatively to the butylated hydroxytoluene (BHT) (DPPH IC50, 3 µg/ml; reducing power EC50, 99 mg.ml-1 and IC50 = 280 µg/ml for the β-carotene bleaching test). The total antioxidant activity was estimated at 329 mg GAE.g-1 DW, the total phenolic content was 33,833 mg GAE.g-1 DW and the total condensed tannin were 16.167 mg EC.g-1 DW. The RP-HPLC showed the presence of 69 compounds: 24 with a percentage ranging from 1.37 to 15.02% including the caffeic acid (15,02%), the rutin trihydrate (12.71%), the syringic acid (3.44%), the gallic acid (2.58%) and 55 compounds with a percentage varying from 0.02 to 0.93% including the chlorogenic acid (0.8%), the resorcinol (0.78%), the vanillic acid (0.77%), the naphtho-resorcinol (0.68%), the quercetin dihydrate (0.57%), the p-coumaric acid (0.56%), the trans-cinnamic acid (0.53%) and the catechine hydrae (0.18%). In conclusion, we confirm the presence of natural compounds in the bark of Tunisian tree of J. regia with great interest, especially the polyphenols which confer to this plant a wide range of biological activities and reinforce the use of walnut bark in the developing countries in order to maintain oral hygiene. Key words : Juglans regia, reversed phase-high performance liquid chromatography (RP-HPLC), polyphenols, antioxidant activities." @default.
- W2328984836 created "2016-06-24" @default.
- W2328984836 creator A5008924585 @default.
- W2328984836 creator A5055870899 @default.
- W2328984836 creator A5062167608 @default.
- W2328984836 creator A5077515491 @default.
- W2328984836 creator A5084066332 @default.
- W2328984836 creator A5085291497 @default.
- W2328984836 creator A5086912937 @default.
- W2328984836 date "2012-02-29" @default.
- W2328984836 modified "2023-10-16" @default.
- W2328984836 title "Antioxidant activities and RP-HPLC identification of polyphenols in the ethyl acetate extract of Tunisian Juglans regia L treated barks." @default.
- W2328984836 doi "https://doi.org/10.5897/jmpr11.1405" @default.
- W2328984836 hasPublicationYear "2012" @default.
- W2328984836 type Work @default.
- W2328984836 sameAs 2328984836 @default.
- W2328984836 citedByCount "4" @default.
- W2328984836 countsByYear W23289848362018 @default.
- W2328984836 countsByYear W23289848362020 @default.
- W2328984836 countsByYear W23289848362021 @default.
- W2328984836 crossrefType "journal-article" @default.
- W2328984836 hasAuthorship W2328984836A5008924585 @default.
- W2328984836 hasAuthorship W2328984836A5055870899 @default.
- W2328984836 hasAuthorship W2328984836A5062167608 @default.
- W2328984836 hasAuthorship W2328984836A5077515491 @default.
- W2328984836 hasAuthorship W2328984836A5084066332 @default.
- W2328984836 hasAuthorship W2328984836A5085291497 @default.
- W2328984836 hasAuthorship W2328984836A5086912937 @default.
- W2328984836 hasConcept C185592680 @default.
- W2328984836 hasConcept C2778004101 @default.
- W2328984836 hasConcept C2779218259 @default.
- W2328984836 hasConcept C2779858419 @default.
- W2328984836 hasConcept C31903555 @default.
- W2328984836 hasConcept C43617362 @default.
- W2328984836 hasConcept C55493867 @default.
- W2328984836 hasConcept C556039675 @default.
- W2328984836 hasConcept C70899900 @default.
- W2328984836 hasConcept C71924100 @default.
- W2328984836 hasConceptScore W2328984836C185592680 @default.
- W2328984836 hasConceptScore W2328984836C2778004101 @default.
- W2328984836 hasConceptScore W2328984836C2779218259 @default.
- W2328984836 hasConceptScore W2328984836C2779858419 @default.
- W2328984836 hasConceptScore W2328984836C31903555 @default.
- W2328984836 hasConceptScore W2328984836C43617362 @default.
- W2328984836 hasConceptScore W2328984836C55493867 @default.
- W2328984836 hasConceptScore W2328984836C556039675 @default.
- W2328984836 hasConceptScore W2328984836C70899900 @default.
- W2328984836 hasConceptScore W2328984836C71924100 @default.
- W2328984836 hasIssue "8" @default.
- W2328984836 hasLocation W23289848361 @default.
- W2328984836 hasOpenAccess W2328984836 @default.
- W2328984836 hasPrimaryLocation W23289848361 @default.
- W2328984836 hasRelatedWork W1981981751 @default.
- W2328984836 hasRelatedWork W2050017121 @default.
- W2328984836 hasRelatedWork W2060312499 @default.
- W2328984836 hasRelatedWork W2116433048 @default.
- W2328984836 hasRelatedWork W2328984836 @default.
- W2328984836 hasRelatedWork W2382463420 @default.
- W2328984836 hasRelatedWork W2385338632 @default.
- W2328984836 hasRelatedWork W2744568335 @default.
- W2328984836 hasRelatedWork W3002191329 @default.
- W2328984836 hasRelatedWork W3176721350 @default.
- W2328984836 hasVolume "6" @default.
- W2328984836 isParatext "false" @default.
- W2328984836 isRetracted "false" @default.
- W2328984836 magId "2328984836" @default.
- W2328984836 workType "article" @default.