Effects of salinity and salinity-induced augmented bioactive compounds in purslane (Portulaca oleracea L.) for possible economical use

Amirul Alam M 1 , Juraimi AS 2 , Rafii MY 3 , Hamid AA 4 , Aslani F 2 , Alam MZ 5

Affiliations 

  • 1 Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia. Electronic address: amirul81@gmail.com
  • 2 Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia
  • 3 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
  • 4 Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia
  • 5 Department of Plant and Animal Sciences, Faculty of Agriculture, Dalhousie University, Nova Scotia, Canada
Food Chem, 2015 Feb 15;169:439-47.
PMID: 25236249 DOI: 10.1016/j.foodchem.2014.08.019

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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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