Development of Cosmos caudatus (Ulam Raja)-enriched beef burger
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Date
2012-09-14
Authors
Easa, Azhar Mat
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
The total phenolic contents (TPC) and antioxidant activities of five popuJarMalay 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), TEACoPPH (J.1lnol Trolox equivalent per gram of plant on dry basis)
and TEACFRAP (J.1mol 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 (I 0834) > Pegaga (65.99) > Petai (44.67), respectively. No
significant correlation (p>O.05) was observed between antioxidant activities and TPC which