Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities

This work was performed to determine the biochemical composition, antioxidant and antimicrobial activities of leaf extracts collected from four different provenances: Mahdia and Mahres (Ziziphus jujuba); Kairouan and Rouhia (Ziziphus lotus). Total phenols, flavonoids, tannins contents and antioxidan...

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Main Authors: Meriem Elaloui, Ame Ennajah, Hanene Ghazghazi, Imen Ben Youssef, Nada Ben Othman, Mohamed Rabeh Hajlaoui, Ali Khouja, Abdelwahed Laamouri
Format: Article
Language:English
Published: izzet kara 2017-01-01
Series:International Journal of Secondary Metabolite
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Online Access:https://dergipark.org.tr/tr/pub/ijsm/issue/23667/275886?publisher=ijate
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author Meriem Elaloui
Ame Ennajah
Hanene Ghazghazi
Imen Ben Youssef
Nada Ben Othman
Mohamed Rabeh Hajlaoui
Ali Khouja
Abdelwahed Laamouri
author_facet Meriem Elaloui
Ame Ennajah
Hanene Ghazghazi
Imen Ben Youssef
Nada Ben Othman
Mohamed Rabeh Hajlaoui
Ali Khouja
Abdelwahed Laamouri
author_sort Meriem Elaloui
collection DOAJ
description This work was performed to determine the biochemical composition, antioxidant and antimicrobial activities of leaf extracts collected from four different provenances: Mahdia and Mahres (Ziziphus jujuba); Kairouan and Rouhia (Ziziphus lotus). Total phenols, flavonoids, tannins contents and antioxidant activity were evaluated using the Folin ciocalteux, Aluminum trichloride, vanillin and scavenging activity on 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radicals methods, respectively. The antimicrobial activity was evaluated against three bacterial strains (Escherichia coli, Staphylococcus aureus and klebsiella pneumoniea) and three fungal strains (Fusarium culmorum, Fusarium solani and Botrytis cinerea), according to well Agar diffusion method. Total phenols and flavonoids were present at levels of 21.98 mg GAE /g DW and 7.80 mg ER/g DW; respectively in Ziziphus lotus. These levels did not exceeded 13.70 mg GAE /g DW and 6.73 mg ER/g DW for Ziziphus jujuba. The tannin contents were present in equal levels (7.9 mg EC/g DW) in two species. The high antioxidant activity (0.01 µg/ml) was noted in Rouhia provenance. The Ziziphus lotus leaf extracts showed promising efficiency against all tested microorganisms with a zone of inhibition ranging between 22 and 23.5 mm. This study could validate the medicinal potential of Ziziphus specie and explain why tunisian people traditionally use it in medicine to treat several pathologies. Ziziphus leaf extracts may be suggested in foods and pharmaceutical industries. Leaf extracts proved also to be effective against tested microorganisms. So, an adequate toxicological study must be carried out to verify the possibility of using these plants for fighting microorganisms.
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spelling doaj-art-87924bcbf3ec4b78bf0aacb96b61c3312025-08-20T03:37:43Zengizzet karaInternational Journal of Secondary Metabolite2148-69052017-01-0141182610.21448/ijsm.275886618Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activitiesMeriem ElalouiAme Ennajah0Hanene Ghazghazi1Imen Ben Youssef2Nada Ben Othman3Mohamed Rabeh Hajlaoui4Ali Khouja5Abdelwahed Laamouri6Laboratory of Management and Forest ValorizationLaboratory of Management and Forest ValorizationNational Institute of Applied Sciences and Technology (INSAT)National Institute of Applied Sciences and Technology (INSAT)National Institute of Agronomic Research of TunisiaNational Agricultural Institute of TunisiaNational Institute of Applied Sciences and Technology (INSAT)This work was performed to determine the biochemical composition, antioxidant and antimicrobial activities of leaf extracts collected from four different provenances: Mahdia and Mahres (Ziziphus jujuba); Kairouan and Rouhia (Ziziphus lotus). Total phenols, flavonoids, tannins contents and antioxidant activity were evaluated using the Folin ciocalteux, Aluminum trichloride, vanillin and scavenging activity on 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radicals methods, respectively. The antimicrobial activity was evaluated against three bacterial strains (Escherichia coli, Staphylococcus aureus and klebsiella pneumoniea) and three fungal strains (Fusarium culmorum, Fusarium solani and Botrytis cinerea), according to well Agar diffusion method. Total phenols and flavonoids were present at levels of 21.98 mg GAE /g DW and 7.80 mg ER/g DW; respectively in Ziziphus lotus. These levels did not exceeded 13.70 mg GAE /g DW and 6.73 mg ER/g DW for Ziziphus jujuba. The tannin contents were present in equal levels (7.9 mg EC/g DW) in two species. The high antioxidant activity (0.01 µg/ml) was noted in Rouhia provenance. The Ziziphus lotus leaf extracts showed promising efficiency against all tested microorganisms with a zone of inhibition ranging between 22 and 23.5 mm. This study could validate the medicinal potential of Ziziphus specie and explain why tunisian people traditionally use it in medicine to treat several pathologies. Ziziphus leaf extracts may be suggested in foods and pharmaceutical industries. Leaf extracts proved also to be effective against tested microorganisms. So, an adequate toxicological study must be carried out to verify the possibility of using these plants for fighting microorganisms.https://dergipark.org.tr/tr/pub/ijsm/issue/23667/275886?publisher=ijatebaker’s yeastsystem identificationsaccharomyces cerevisiae as a second metabolite source
spellingShingle Meriem Elaloui
Ame Ennajah
Hanene Ghazghazi
Imen Ben Youssef
Nada Ben Othman
Mohamed Rabeh Hajlaoui
Ali Khouja
Abdelwahed Laamouri
Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities
International Journal of Secondary Metabolite
baker’s yeast
system identification
saccharomyces cerevisiae as a second metabolite source
title Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities
title_full Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities
title_fullStr Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities
title_full_unstemmed Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities
title_short Quantification of total phenols, flavonoides and tannins from Ziziphus jujuba (mill.) and Ziziphus lotus (l.) (Desf). Leaf extracts and their effects on antioxidant and antibacterial activities
title_sort quantification of total phenols flavonoides and tannins from ziziphus jujuba mill and ziziphus lotus l desf leaf extracts and their effects on antioxidant and antibacterial activities
topic baker’s yeast
system identification
saccharomyces cerevisiae as a second metabolite source
url https://dergipark.org.tr/tr/pub/ijsm/issue/23667/275886?publisher=ijate
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