title: Evaluation of antioxidant compounds, antioxidant activities, and mineral composition of 13 collected purslane (Portulaca oleracea L.) accessions.
abstract: The methanolic extracts of 13 accessions of purslane were analyzed for their total phenol content (TPC), total flavonoid contents (TFC), and total carotenoid contents (TCC) and antioxidant activity of extracts was screened using FRAP assay and DPPH radical scavenging methods. The TPC, TFC, and TCC ranged from 0.96 ± 0.04 to 9.12 ± 0.29 mg GAE/g DW, 0.13 ± 0.04 to 1.44 ± 0.08 mg RE/g DW, and 0.52 ± 0.06 to 5.64 ± 0.09 mg (β-carotene equivalent) BCE/g DW, respectively. The DPPH scavenging (IC50) activity varied between 2.52 ± 0.03 mg/mL and 3.29 ± 0.01 mg/mL and FRAP ranged from 7.39 ± 0.08 to 104.2 ± 6.34  μmol TE/g DW. Among all the measured micro- and macrominerals K content was the highest followed by N, Na, Ca, Mg, P, Fe, Zn, and Mn. The overall findings proved that ornamental purslane was richer in antioxidant properties, whereas common purslane possesses more mineral contents than ornamental ones.
authors.affiliation: Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: Md Amirul
authors.identifier: 0000-0002-4581-875X
authors.initials: MA
authors.lastname: Alam
authors.affiliation: Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: Abdul Shukor
authors.initials: AS
authors.lastname: Juraimi
authors.affiliation: Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia ; Institute of Tropical Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: M Y
authors.initials: MY
authors.lastname: Rafii
authors.affiliation: Faculty of Food Science and Technology, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: Azizah
authors.initials: A
authors.lastname: Abdul Hamid
authors.affiliation: Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: Farzad
authors.identifier: 0000-0003-0485-9800
authors.initials: F
authors.lastname: Aslani
authors.affiliation: Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: M M
authors.initials: MM
authors.lastname: Hasan
authors.affiliation: Faculty of Food Science and Technology, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: Mohd Asraf
authors.initials: MA
authors.lastname: Mohd Zainudin
authors.affiliation: Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
authors.forename: Md Kamal
authors.initials: MK
authors.lastname: Uddin
mesh_terms: D000975:Antioxidants / Q000032:analysis* / Q000494:pharmacology*; D001713:Biphenyl Compounds / Q000378:metabolism; D002338:Carotenoids / Q000032:analysis; D060146:Ecotype; D005419:Flavonoids / Q000032:analysis; D008903:Minerals / Q000032:analysis*; D010636:Phenols / Q000032:analysis; D010851:Picrates / Q000378:metabolism; D031822:Portulaca / Q000737:chemistry*; D012015:Reference Standards
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D005419:Flavonoids; D008903:Minerals; D010636:Phenols; D010851:Picrates; D002338:Carotenoids; C004931:1,1-diphenyl-2-picrylhydrazyl