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Chemical Composition and Yield of Six Genotypes of Common Purslane (Portulaca oleracea L.): An Alternative Source of Omega-3 Fatty Acids

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Abstract

Common purslane (Portulaca oleracea L.) is an annual weed rich in omega-3 fatty acids which is consumed for its edible leaves and stems. In the present study six different genotypes of common purslane (A-F) were evaluated for their nutritional value and chemical composition. Nutritional value and chemical composition depended on genotype. Oxalic acid content was the lowest for genotype D, whereas genotypes E and F are more promising for commercial cultivation, since they have low oxalic acid content. Genotype E had a very good antioxidant profile and a balanced composition of omega-3 and omega-6 fatty acids. Regarding yield, genotype A had the highest yield comparing to the other genotypes, whereas commercial varieties (E and F) did not differ from genotypes B and C. This study provides new information regarding common purslane bioactive compounds as affected by genotype and could be further implemented in food industry for products of high quality and increased added value.

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Correspondence to Spyridon Α. Petropoulos or Isabel C. F. R. Ferreira.

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The authors declare that do not have a conflict of interest.

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Petropoulos, S.Α., Karkanis, A., Fernandes, Â. et al. Chemical Composition and Yield of Six Genotypes of Common Purslane (Portulaca oleracea L.): An Alternative Source of Omega-3 Fatty Acids. Plant Foods Hum Nutr 70, 420–426 (2015). https://doi.org/10.1007/s11130-015-0511-8

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Keywords

  • Antioxidant activity
  • Bioactive compounds
  • Edible weed
  • Oxalic acid
  • Sugar content