Citation
Reihani S. F. S., . and Azhar M. E., . Antioxidant activity and total phenolic content in aqueous extracts of selected traditional Malay salads (Ulam). pp. 1439-1444. ISSN 2231-7546
Abstract
The total phenolic contents (TPC) and antioxidant activities of five popular Malay raw salads or Ulam were investigated using DPPH radical scavenging and reducing ferric ion antioxidant power (FRAP) assays. The Ulam studied were the leaves of Cosmos caudatus (Ulam Raja) Oenanthe javanica (Selom) Murraya koenigii (Curry Leaf) Centella asiatica (Pegaga) and the seeds of Parkia speciosa (Petai). Ranking order of TPC (mg gallic acid equivalent per gram of plant on dry basis) TEACDPPH (mol Trolox equivalent per gram of plant on dry basis) and TEACFRAP (mol Trolox equivalent per gram of plant on dry basis) values were: Curry Leaf (33.18) Selom (31.8) Ulam Raja (31.3) Pegaga (11.16) Petai (6.45); Ulam Raja (212.8) Selom (185.9) Curry Leaf (82.1) Petai (67.62) Pegaga (32.4); Selom (199.96) Ulam Raja (183.11) Curry Leaf (108.34) Pegaga (65.99) Petai (44.67) respectively. No significant correlation (p0.05) was observed between antioxidant activities and TPC which could be due to steric hindrance or presence of other reducing agents. Interestingly Selom showed antioxidant activities that are comparable to Ulam Raja.
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Abstract
The total phenolic contents (TPC) and antioxidant activities of five popular Malay raw salads or Ulam were investigated using DPPH radical scavenging and reducing ferric ion antioxidant power (FRAP) assays. The Ulam studied were the leaves of Cosmos caudatus (Ulam Raja) Oenanthe javanica (Selom) Murraya koenigii (Curry Leaf) Centella asiatica (Pegaga) and the seeds of Parkia speciosa (Petai). Ranking order of TPC (mg gallic acid equivalent per gram of plant on dry basis) TEACDPPH (mol Trolox equivalent per gram of plant on dry basis) and TEACFRAP (mol Trolox equivalent per gram of plant on dry basis) values were: Curry Leaf (33.18) Selom (31.8) Ulam Raja (31.3) Pegaga (11.16) Petai (6.45); Ulam Raja (212.8) Selom (185.9) Curry Leaf (82.1) Petai (67.62) Pegaga (32.4); Selom (199.96) Ulam Raja (183.11) Curry Leaf (108.34) Pegaga (65.99) Petai (44.67) respectively. No significant correlation (p0.05) was observed between antioxidant activities and TPC which could be due to steric hindrance or presence of other reducing agents. Interestingly Selom showed antioxidant activities that are comparable to Ulam Raja.
Additional Metadata
Item Type: | Article |
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AGROVOC Term: | Antioxidants |
AGROVOC Term: | Phenolic content |
AGROVOC Term: | Extracts |
AGROVOC Term: | Salads |
Geographical Term: | Malaysia |
Depositing User: | Ms. Suzila Mohamad Kasim |
Last Modified: | 26 Apr 2025 16:46 |
URI: | http://webagris.upm.edu.my/id/eprint/22229 |
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