title: Effects of salinity and salinity-induced augmented bioactive compounds in purslane (Portulaca oleracea L.) for possible economical use.
abstract: Dry matter (DM), total phenolics, flavonoids, carotenoid contents, and antioxidant activity of 12 purslane accessions were investigated against five levels of salinity (0, 8, 16, 24 and 32dSm(-1)). In untreated plants, the DM contents ranged between 8.0-23.4g/pot; total phenolics contents (TPC) between 0.96-9.12mgGAEg(-1)DW; total flavonoid contents (TFC) between 0.15-1.44mgREg(-1)DW; and total carotenoid contents (TCC) between 0.52BCEg(-1)DW. While FRAP activity ranged from 8.64-104.21mgTEg(-1)DW (about 12-fold) and DPPH activity between 2.50-3.30mgmL(-1) IC50 value. Different levels of salinity treatment resulted in 8-35% increases in TPC; about 35% increase in TFC; and 18-35% increases in FRAP activity. Purslane accessions Ac4, Ac5, Ac6 and Ac8 possessed potentials for salinity-induced augmented production of bioactive compounds which in turn can be harnessed for possible human health benefits.
authors.affiliation: Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia. Electronic address: amirul81@gmail.com.
authors.forename: Md
authors.initials: M
authors.lastname: Amirul Alam
authors.affiliation: Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia.
authors.forename: A S
authors.initials: AS
authors.lastname: Juraimi
authors.affiliation: Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia; Institute of Tropical Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor 43400, Malaysia.
authors.forename: M Y
authors.initials: MY
authors.lastname: Rafii
authors.affiliation: Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia.
authors.forename: A A
authors.initials: AA
authors.lastname: Hamid
authors.affiliation: Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia.
authors.forename: F
authors.initials: F
authors.lastname: Aslani
authors.affiliation: Department of Plant and Animal Sciences, Faculty of Agriculture, Dalhousie University, Nova Scotia, Canada.
authors.forename: M Z
authors.initials: MZ
authors.lastname: Alam
mesh_terms: D002338:Carotenoids / Q000032:analysis; D005419:Flavonoids / Q000032:analysis; D010636:Phenols / Q000032:analysis; D010936:Plant Extracts / Q000737:chemistry; D031822:Portulaca / Q000737:chemistry*; D017382:Reactive Oxygen Species / Q000378:metabolism; D054712:Salinity
chemical_list: D005419:Flavonoids; D010636:Phenols; D010936:Plant Extracts; D017382:Reactive Oxygen Species; D002338:Carotenoids
keywords: Antioxidant; Carotenoids; Phenolics; Purslane; Salinity