Citation
Mohd. Shukri Mohd. Ali, . and Crozier Alan, . and Site Noorzuraini Abd. Rahman, . Polyphenols and antioxidant activities of selected traditionalvegetables. pp. 1-15. ISSN 1394-9829
Abstract
Consumption of fruits and vegetables is associated with a lower risk of serious diseases such as cardiovascular disease and cancer. Fruits and vegetables are also widely reported as good sources of dietary antioxidants. Five selected Malaysian traditional vegetables namely Centella asiatica (L.) Urban (pegaga) Anacardium occidentale L. (gajus) Colubrina asiatica (peria pantai) Pluchea indica (beluntas) and Premna cordifolia (bebuas) from MARDIs gene bank Seberang Perai were screened for phenolic compounds and analysed for antioxidant activities using a Ferric Reducing Antioxidant Potential (FRAP) assay in two batches of sampling. Total phenolic content varied from 100“415 mg/kg gallic acid equivalent (GAE) in batch 1 and from 62“386 mg/kg GAE in batch 2. Anacardium occidentale had the highest total phenolic content followed by P. indica B and A P. cordifolia C. asiatica and the lowest was C. asiatica. Total antioxidant activity indicated that A. occidentale showed the highest activity which was probably due to these phenolics. Flavonol glycosides were predominant in most of the species particularly A. occidentale with levels ranging 6.4“12.4 0.3 mg/g fresh weight (fw). Chlorogenic acids were the main components identified and quantified in C. asiatica and P. indica. In this study it was shown that the total phenolic content of plant extracts was positively correlated with total antioxidant capacity.
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Abstract
Consumption of fruits and vegetables is associated with a lower risk of serious diseases such as cardiovascular disease and cancer. Fruits and vegetables are also widely reported as good sources of dietary antioxidants. Five selected Malaysian traditional vegetables namely Centella asiatica (L.) Urban (pegaga) Anacardium occidentale L. (gajus) Colubrina asiatica (peria pantai) Pluchea indica (beluntas) and Premna cordifolia (bebuas) from MARDIs gene bank Seberang Perai were screened for phenolic compounds and analysed for antioxidant activities using a Ferric Reducing Antioxidant Potential (FRAP) assay in two batches of sampling. Total phenolic content varied from 100“415 mg/kg gallic acid equivalent (GAE) in batch 1 and from 62“386 mg/kg GAE in batch 2. Anacardium occidentale had the highest total phenolic content followed by P. indica B and A P. cordifolia C. asiatica and the lowest was C. asiatica. Total antioxidant activity indicated that A. occidentale showed the highest activity which was probably due to these phenolics. Flavonol glycosides were predominant in most of the species particularly A. occidentale with levels ranging 6.4“12.4 0.3 mg/g fresh weight (fw). Chlorogenic acids were the main components identified and quantified in C. asiatica and P. indica. In this study it was shown that the total phenolic content of plant extracts was positively correlated with total antioxidant capacity.
Additional Metadata
Item Type: | Article |
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AGROVOC Term: |  Vegetables |
AGROVOC Term: | Antioxidants |
AGROVOC Term: | Polyphenols |
AGROVOC Term: | Cardiovascular diseases |
AGROVOC Term: | Anacardium occidentale |
AGROVOC Term: | Gene banks |
AGROVOC Term: | Screening tests |
AGROVOC Term: | Phenolic compounds |
AGROVOC Term: | Phenolic content |
AGROVOC Term: | Flavonols |
Depositing User: | Ms. Suzila Mohamad Kasim |
Last Modified: | 24 Apr 2025 06:29 |
URI: | http://webagris.upm.edu.my/id/eprint/24512 |
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