Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract
Introduction: Most parts of Clitoria ternatea have been investigated for their medicinal purposes such as antimicrobial, antioxidant, anti-diarrheal, anti-diabetic, treatment for skin disease, sore throat, and memory enhancement. The present study aimed to investigate the total phenolic contents...
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my.iium.irep.1107952024-02-08T04:39:02Z http://irep.iium.edu.my/110795/ Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract Haron, Normah Mat Jusoh, Hanapi Ali, Siti Shahirah QD Chemistry Introduction: Most parts of Clitoria ternatea have been investigated for their medicinal purposes such as antimicrobial, antioxidant, anti-diarrheal, anti-diabetic, treatment for skin disease, sore throat, and memory enhancement. The present study aimed to investigate the total phenolic contents in free and bound forms (soluble and insoluble bound) and their radical antioxidant scavenging capacity. Methods: Free phenolic extract was acquired through direct methanol extraction while acidic and alkaline hydrolyses were adopted to release the bound phenolic. The total phenolic content (TPC)s were determined using Folin-Ciocalteu assay and expressed in gallic acid equivalents (GAE). The fractions were evaluated for their antioxidant capacity using DPPH assay. Results: The highest phenolic content was found in insoluble bound extract followed by soluble bound and free extracts (1.87 ± 0.05, 1.63 ± 0.05, 1.05 ± 0.11 mg GAE/ g DW, respectively). At the highest concentration of 50 mg/ml, soluble bound extract demonstrated the highest radical scavenging capacity compared to insoluble bound and free extracts (84.24 ± 1.96 %, 83.49 ± 1.03 %, and 63.37 ± 5.33 %). Conclusions: The insignificant differences between all the extracts and antioxidant inhibition in this present study suggested that different forms of extracts did not influence the radical scavenging capacity. 2019-12-31 Article PeerReviewed application/pdf en http://irep.iium.edu.my/110795/7/110795_Total%20phenolic%20contents%20and%20free%20radical%20scavenging.pdf Haron, Normah and Mat Jusoh, Hanapi and Ali, Siti Shahirah (2019) Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract. International Journal of Allied Health Sciences, 3 (4). pp. 854-862. E-ISSN 2600-8491 https://journals.iium.edu.my/ijahs/index.php/IJAHS/article/view/191 |
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QD Chemistry Haron, Normah Mat Jusoh, Hanapi Ali, Siti Shahirah Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
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Introduction: Most parts of Clitoria ternatea have been investigated for their medicinal purposes such as
antimicrobial, antioxidant, anti-diarrheal, anti-diabetic, treatment for skin disease, sore throat, and memory
enhancement. The present study aimed to investigate the total phenolic contents in free and bound forms
(soluble and insoluble bound) and their radical antioxidant scavenging capacity. Methods: Free phenolic
extract was acquired through direct methanol extraction while acidic and alkaline hydrolyses were adopted
to release the bound phenolic. The total phenolic content (TPC)s were determined using Folin-Ciocalteu
assay and expressed in gallic acid equivalents (GAE). The fractions were evaluated for their antioxidant
capacity using DPPH assay. Results: The highest phenolic content was found in insoluble bound extract
followed by soluble bound and free extracts (1.87 ± 0.05, 1.63 ± 0.05, 1.05 ± 0.11 mg GAE/ g DW,
respectively). At the highest concentration of 50 mg/ml, soluble bound extract demonstrated the highest
radical scavenging capacity compared to insoluble bound and free extracts (84.24 ± 1.96 %, 83.49 ± 1.03 %,
and 63.37 ± 5.33 %). Conclusions: The insignificant differences between all the extracts and antioxidant
inhibition in this present study suggested that different forms of extracts did not influence the radical
scavenging capacity. |
format |
Article |
author |
Haron, Normah Mat Jusoh, Hanapi Ali, Siti Shahirah |
author_facet |
Haron, Normah Mat Jusoh, Hanapi Ali, Siti Shahirah |
author_sort |
Haron, Normah |
title |
Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
title_short |
Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
title_full |
Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
title_fullStr |
Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
title_full_unstemmed |
Total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
title_sort |
total phenolic contents and free radical scavenging capacity of clitoria ternatea (bunga telang) extract |
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2019 |
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http://irep.iium.edu.my/110795/7/110795_Total%20phenolic%20contents%20and%20free%20radical%20scavenging.pdf http://irep.iium.edu.my/110795/ https://journals.iium.edu.my/ijahs/index.php/IJAHS/article/view/191 |
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