Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves

BACKGROUND: The aim of the current study was (i) to evaluate the bioactive potential of the leaf methanolic extract of Cynometra cauliflora L., along with its respective hexane, dichloromethane, ethyl acetate (EtOAc), n-butanol (n-BuOH) and aqueous fractions, in inhibiting the enzymes α-glucosidase,...

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Main Authors: Ado, Muhammad Abubakar, Abas, Faridah, Ismail, Intan Safinar, Mohd Ghazali, Hasanah, Shaari, Khozirah
Format: Article
Language:English
Published: Society of Chemical Industry 2015
Online Access:http://psasir.upm.edu.my/id/eprint/36774/
http://psasir.upm.edu.my/id/eprint/36774/1/36774.pdf
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author Ado, Muhammad Abubakar
Abas, Faridah
Ismail, Intan Safinar
Mohd Ghazali, Hasanah
Shaari, Khozirah
author_facet Ado, Muhammad Abubakar
Abas, Faridah
Ismail, Intan Safinar
Mohd Ghazali, Hasanah
Shaari, Khozirah
author_sort Ado, Muhammad Abubakar
building UPM Institutional Repository
collection Online Access
description BACKGROUND: The aim of the current study was (i) to evaluate the bioactive potential of the leaf methanolic extract of Cynometra cauliflora L., along with its respective hexane, dichloromethane, ethyl acetate (EtOAc), n-butanol (n-BuOH) and aqueous fractions, in inhibiting the enzymes α-glucosidase, acetylcholinesterase (AChE) and tyrosinase as well as evaluating their antioxidant activities. (ii) In addition, in view of the limited published information regarding the metabolite profile of C. cauliflora, we further characterized the profiles of the EtOAc and n-BuOH fractions using liquid chromatography–diode array detection–electrospray ionization–tandem mass spectrometry. RESULTS: The leaf methanolic extract of C. cauliflora exhibited potent inhibition of all three enzymes and high antioxidant activity. The bioactivity was found to be concentrated in the EtOAc and n-BuOH fractions. A total of 18 compounds were identified in these bioactive fractions, comprising a procyanidin trimer, procyanidin tetramer, procyanidin hexamer, taxifolin pentoside, catechin, vitexin, isovitexin, kaempferol hexoside, quercetin pentoside, quercetin hexoside, apigenin-6-C-glucoside-8-C-glucoside, kaempferol–coumaroyl hexoside and isorhamnetin hexoside. CONCLUSION: The results indicated that C. cauliflora, the leaves in particular, is a rich source of bioactive compounds and could be beneficial for further development of high-value phytomedicinal preparations and functional food products.
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spelling upm-367742015-08-20T06:32:38Z http://psasir.upm.edu.my/id/eprint/36774/ Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves Ado, Muhammad Abubakar Abas, Faridah Ismail, Intan Safinar Mohd Ghazali, Hasanah Shaari, Khozirah BACKGROUND: The aim of the current study was (i) to evaluate the bioactive potential of the leaf methanolic extract of Cynometra cauliflora L., along with its respective hexane, dichloromethane, ethyl acetate (EtOAc), n-butanol (n-BuOH) and aqueous fractions, in inhibiting the enzymes α-glucosidase, acetylcholinesterase (AChE) and tyrosinase as well as evaluating their antioxidant activities. (ii) In addition, in view of the limited published information regarding the metabolite profile of C. cauliflora, we further characterized the profiles of the EtOAc and n-BuOH fractions using liquid chromatography–diode array detection–electrospray ionization–tandem mass spectrometry. RESULTS: The leaf methanolic extract of C. cauliflora exhibited potent inhibition of all three enzymes and high antioxidant activity. The bioactivity was found to be concentrated in the EtOAc and n-BuOH fractions. A total of 18 compounds were identified in these bioactive fractions, comprising a procyanidin trimer, procyanidin tetramer, procyanidin hexamer, taxifolin pentoside, catechin, vitexin, isovitexin, kaempferol hexoside, quercetin pentoside, quercetin hexoside, apigenin-6-C-glucoside-8-C-glucoside, kaempferol–coumaroyl hexoside and isorhamnetin hexoside. CONCLUSION: The results indicated that C. cauliflora, the leaves in particular, is a rich source of bioactive compounds and could be beneficial for further development of high-value phytomedicinal preparations and functional food products. Society of Chemical Industry 2015-02 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36774/1/36774.pdf Ado, Muhammad Abubakar and Abas, Faridah and Ismail, Intan Safinar and Mohd Ghazali, Hasanah and Shaari, Khozirah (2015) Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves. Journal of the Science of Food and Agriculture, 95 (3). pp. 635-642. ISSN 0022-5142; ESSN: 1097-0010 10.1002/jsfa.6832
spellingShingle Ado, Muhammad Abubakar
Abas, Faridah
Ismail, Intan Safinar
Mohd Ghazali, Hasanah
Shaari, Khozirah
Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves
title Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves
title_full Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves
title_fullStr Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves
title_full_unstemmed Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves
title_short Chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of Cynometra cauliflora L. leaves
title_sort chemical profile and antiacetylcholinesterase, antityrosinase, antioxidant and α-glucosidase inhibitory activity of cynometra cauliflora l. leaves
url http://psasir.upm.edu.my/id/eprint/36774/
http://psasir.upm.edu.my/id/eprint/36774/
http://psasir.upm.edu.my/id/eprint/36774/1/36774.pdf