Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012;13(8):10257-10267.
doi: 10.3390/ijms130810257. Epub 2012 Aug 16.

Evaluation of antioxidant properties and mineral composition of Purslane (Portulaca oleracea L.) at different growth stages

Md Kamal Uddin  1 , Abdul Shukor Juraimi  2 , Md Eaqub Ali  3 , Mohd Razi Ismail  1
Affiliations

Evaluation of antioxidant properties and mineral composition of Purslane (Portulaca oleracea L.) at different growth stages

Md Kamal Uddin et al. Int J Mol Sci. 2012.

Abstract

The main objective of this research was to appraise the changes in mineral content and antioxidant attributes of Portulaca oleracea over different growth stages. The antioxidant activity was measured using 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferric-reducing antioxidant power (FRAP) assays. The iodine titration method was used to determine the ascorbic acid content (AAC). DPPH scavenging (IC(50)) capacity ranged from 1.30 ± 0.04 to 1.71 ± 0.04 mg/mL, while the ascorbic acid equivalent antioxidant activity (AEAC) values were 229.5 ± 7.9 to 319.3 ± 8.7 mg AA/100 g, total phenol content (TPC) varied from 174.5 ± 8.5 to 348.5 ± 7.9 mg GAE/100 g. AAC 60.5 ± 2.1 to 86.5 ± 3.9 mg/100 g and FRAP 1.8 ± 0.1 to 4.3 ± 0.1 mg GAE/g. There was good correlation between the results of TPC and AEAC, and between IC(50) and FRAP assays (r(2) > 0.9). The concentrations of Ca, Mg, K, Fe and Zn increased with plant maturity. Calcium (Ca) was negatively correlated with sodium (Na) and chloride (Cl), but positively correlated with magnesium (Mg), potassium (K), iron (Fe) and zinc (Zn). Portulaca olerecea cultivars could be used as a source of minerals and antioxidants, especially for functional food and nutraceutical applications.

Keywords: antioxidant; ascorbic acid content (AAC); ferric-reducing antioxidant power (FRAP); mineral composition; purslane.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Correlation between total phenol content (TPC) and ascorbic acid equivalent antioxidant activity (AEAC) data in Portulaca oleracea.
Figure 2
Figure 2
Correlation between TPC and ferric-reducing antioxidant power (FRAP) in Portulaca oleracea.
Figure 3
Figure 3
Correlation between TPC and IC50 in Portulaca oleracea.
Figure 4
Figure 4
Correlation between TPC and ascorbic acid content (AAC) in Portulaca oleracea.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Samy J., Sugumaran M., Lee K.L.W. In: Herbs of Malaysia: An Introduction to the Medicinal, Culinary, Aromatic and Cosmetic Use of Herbs. Wong K.M., editor. Times Editions; Shah Alam, Malaysia: 2005.
    1. Uddin M.K., Juraimi A.S., Begum M., Ismail M.R., Rahim A.A., Otheman R. Floristic composition of weed community in turfgrass area of West Peninsular Malaysia. Int. J. Agric. Biol. 2009;11:13–20.
    1. Uddin M.K., Juraimi A.S., Ismail M.R., Brosnan J.B. Characterizing weed populations in different turfgrass sites throughout the Klang Valley of Western Peninsular Malaysia. Weed Technol. 2010;24:173–181.
    1. Chu Y.F., Sun J., Wu X., Liu R.H. Antioxidant and antiproliferative activities of common vegetables. J. Agric. Food Chem. 2002;50:6910–6916. - PubMed
    1. Palaniswamy U.R., McAvoy R.J., Bible B.B. Stage of harvest and polyunsaturated essential fatty acid concentrations in purslane (Portulaca oleracea) leaves. J. Agric. Food Chem. 2001;49:3490–3493. - PubMed

Publication types