Chemical Composition and Yield of Six Genotypes of Common Purslane (Portulaca oleracea L.): An Alternative Source of Omega-3 Fatty Acids.
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.
Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Fytokou Str, 38446, Nea Ionia, Magnesia, Greece. fangio57gr@gmail.com.
Spyridon Α
SΑ
Petropoulos
Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Fytokou Str, 38446, Nea Ionia, Magnesia, Greece.
Anestis
A
Karkanis
Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 1172, 5301-855, Bragança, Portugal.
Ângela
Â
Fernandes
Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 1172, 5301-855, Bragança, Portugal.
Lillian
L
Barros
Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 1172, 5301-855, Bragança, Portugal. iferreira@ipb.pt.
Isabel C F R
IC
Ferreira
Department of Crop Production, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece.
Georgia
G
Ntatsi
Department of Biosystems Engineering, Technological Educational Institute of Thessaly, 41110, Larissa, Greece.
Konstantinos
K
Petrotos
Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Fytokou Str, 38446, Nea Ionia, Magnesia, Greece.
Christos
C
Lykas
Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Fytokou Str, 38446, Nea Ionia, Magnesia, Greece.
Ebrahim
E
Khah
D000975:Antioxidants / Q000032:analysis; D015525:Fatty Acids, Omega-3 / Q000032:analysis*; D043371:Fatty Acids, Omega-6 / Q000032:analysis; D005838:Genotype; D009753:Nutritive Value; D019815:Oxalic Acid / Q000032:analysis; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D031822:Portulaca / Q000737:chemistry* / Q000235:genetics*
D000975:Antioxidants; D015525:Fatty Acids, Omega-3; D043371:Fatty Acids, Omega-6; D019815:Oxalic Acid
Antioxidant activity; Bioactive compounds; Edible weed; Oxalic acid; Sugar content