Chemical composition of purslane (Portulaca oleracea)

Mohamed, Ali I.; Hussein, Ahmed S.

doi:10.1007/bf01091224

Cited by 109 publications

(66 citation statements)

References 8 publications

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Section: Hashemzehi Et Al: Effect Of Portulaca Oleracea On Musacrinmentioning

confidence: 99%

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Portulaca olerace Affects Muscarinic Receptors of Guinea Pig Tracheal Smooth Muscle

Hashemzehi¹,

Khazdair²

2016

pharmaceutical-sciences

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Hashemzehi, et al.: Effect of Portulaca oleracea on Musacrinic ReceptorsThe relaxant effect of Portulaca oleracea L. on tracheal smooth muscles has been shown. The effect of the plant on muscarinic receptors of tracheal smooth muscles as one possible mechanism responsible for its relaxant effect was examined. Concentration response curves to methacholine were performed in the presence of three concentrations of aqueous-ethanol extract from aerial part of the plant (0.25, 0.50 and 1.00 mg/ml), 10 nM atropine, and saline. The values of EC 50 (effective concentration causing 50% of maximum response) and CR-1 ((EC 50 of test solutions/EC 50 of saline)-1) were measured. The study was done using three designs as non-incubated (group 1), incubated tissues with propranolol and chlorpheniramine (group 2) and incubated tissues with propranolol (group 3). Concentration-response curves to methacholine were shifted to the right and EC50 methacholine were significantly higher in the presence of atropine, medium and highest extract concentrations in all groups and its low concentration in group 3 compared to saline. In addition, EC 50 methacholine in the presence of high extract concentration (27.00±2.12) in group 2 was greater than its low (10.33±1.54) and medium (16.83±2.52) concentrations (p<0.05). The values of the CR-1 obtained in the presence of all extract concentrations in all groups were lower than that of atropine (P<0.05 to P<0.001). An inhibitory effect for the extract of P. oleracea on muscarinic receptors of tracheal smooth muscles was shown and a histamine (H 1 ) receptor blockade was also suggested.Key words: Portulaca oleracea, muscarinic receptor, tracheal smooth muscle, inhibitory effect, aqueousethanol extract Portulaca oleracea L. is an annual succulent which may reach 15.75 inches in height with alternate leaves clustered at stem joints; the yellow flower plant grows in different areas of the world including north and northwest of Iran [1] . Main active constituents of P. oleracea are omega-3 fatty acid, α-linolenic acid and eicosa-pentaenoic acid. This plant also contains vitamins (mainly vitamins A, C and some vitamin B) [2,3] . The plant also contains organic acids such as citric, maleic, cyanuric, caffeic acid as well as flavonoids, coumarins, and glycosides [4] .P. oleracea has several therapeutic effects including diuretic, antiascorbic, antipyretic, antiinflammatory [5][6][7] . The plant is also used for treatment of type-2 diabetes mellitus patients [8] . Different pharmacologic effects of this plant are antiinflammatory, analgesic [6] , antioxidant [9][10][11] , potassium channel opener and blood pressure modifier [12] , as well as neuropharmacological [13,14] , wound healing [15] , antibacterial [16] and antipyretic effects [17] . The relaxant effect of this plant was studied on skeletal muscles [18] and smooth muscle of small intestine [19] . Our previous studies also showed relaxant effect of the plant on tracheal smooth muscle [20] and the possible mechanism of this effect for this plant [21]...

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Section: Hashemzehi Et Al: Effect Of Portulaca Oleracea On Musacrinmentioning

confidence: 99%

“…This plant also contains vitamins (mainly vitamins A, C and some vitamin B) [2,3] . The plant also contains organic acids such as citric, maleic, cyanuric, caffeic acid as well as flavonoids, coumarins, and glycosides [4] .P. oleracea has several therapeutic effects including diuretic, antiascorbic, antipyretic, antiinflammatory [5][6][7] .…”

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confidence: 99%

Portulaca olerace Affects Muscarinic Receptors of Guinea Pig Tracheal Smooth Muscle

Hashemzehi¹,

Khazdair²

2016

pharmaceutical-sciences

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“…The purslane tea made by roasting process showed about 7% moisture, 3.47% crude lipids, 20.82% crude protein and 54.78% crude fiber (28). Also, because the purslane shows differences for the nutrient components depending on its maturity, it is known that the intake of sprouts is effective in terms of minerals and the ω-3 fatty acids (29).…”

Section: Nutritional Components Of Purslanementioning

confidence: 99%

Effects of Portulaca oleracea Powder on the Lipid Levels of Rats Fed a Hypercholesterolemia Inducing Diet

Lee¹,

Shin²,

Kang³

et al. 2011

JFN

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This study was initiated to investigate the effects of lyophilized purslane (Portulaca oleracea) powder (5% and 10%) on lipid levels in rats fed a hypercholesterolemia-inducing diet (1% cholesterol). During the four week study, there were no significant differences in either weight change or the food efficiency ratio between the group fed the hypercholesterol diet alone (HC) and the groups fed the purslane powder (HCPO-I and HCPO-II, 5% and 10% purslane, respectively). In serum, the levels of total lipid, total cholesterol and LDL-C decreased significantly for the group fed the 10% purslane powder (HCPO-II) in comparison with the group fed the 5% purslane powder (HCPO-I). The atherogenic index (AI) was reduced by about 51% for the group fed the 10% purslane powder (1.47) in comparison with the HC group (3.03). The activities of GOT, GPT, ALP and LDH decreased significantly for the groups fed the purslane powder in comparison with the HC group. Regarding liver tissue, the levels of total lipid, total cholesterol and triglyceride decreased significantly for the purslane powder-fed rats compared to the HC group. The fecal lipid profiles increased significantly as the amount of purslane powder was increased. Compared to the HC group, the fecal total cholesterol and triglyceride levels were higher in the group fed the 10% purslane powder by about 2.8 times and 2.3 times, respectively. For the serum and liver tissue, the content of lipid peroxide decreased significantly in the groups fed purslane powder compared to the HC group. The data from this experiment show an increase in the lipid levels discharged in feces, suggesting that the supplementation of purslane powder to a hypercholesterolemia-inducing diet reduces lipid levels.

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“…Bangash et al (2011), Hussain et al (2011, Mohamed and Hussein (1994) also reported their findings about the highest amount of Potassium (P) but got different results regarding other minerals.…”

Section: Discussionmentioning

confidence: 98%

Morpho-physiological and mineral nutrient characterization of 45 collected Purslane (Portulaca oleracea L.) accessions

et al. 2014

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This study was carried out to determine, evaluation and characterization of the morphological, physiological as well as mineral nutrient vitiations among all forty five purslane accessions collected from different locations of West Peninsular, Malaysia. Significant differences (p<0.05) were observed for all those traits measured regarding morphological, physiological and mineral composition. /sec. Analysis of mineral macro and micro nutrient compositions showed that all accessions contained appreciable amount of essential nutrients. Among the macro nutrient elements; N, P, K, Ca and Mg contents ranged respectively between 31.2-100, 2.51-8.2, 78.4-276, 9.1-62.2 and 8.7-32.55 ppm. Whereas micro nutrient elements; Zn, Fe and Mn ranged respectively between 0.31-1.09; 1.01-13.09 and 0.06-1.32 ppm. This great variability among the purslane accessions may contribute enhancing the genetic improvement of the species for desired traits.Key words: Purslane, total chlorophyll, photosynthesis, stomatal conductance, transpiration, mineral composition.Caracterização morfofisiológica e nutricional de 45 acessos de beldroegas (Portulaca oleracea L.) ResumoEste estudo foi realizado para determinar aspectos morfológicos, fisiológicos e nutricionais (teor vitamínico) de 45 acessos de beldroegas coletadas em diferentes locais da Península Ocidental da Malásia. Observaram-se diferenças significativas (p<0,05) para todos os caracteres avaliados, considerando-se características morfológicas, fisiológicas e de composição. Para as características morfológicas observaram-se as seguintes variações: altura das plantas (20,06-40,8 cm); número de ramos principais (1,4-4,4); número de nós (8,4-31); distância entre internódio (2,1-3,43 cm); diâmetro do caule (2,12-3,8 mm); número de folhas (97-1.019); área foliar (1,03-2,21 cm 2 ); número de flores (14-826,8); comprimento da raiz (5,09-11,7 cm); peso fresco (40-280 g); e massa seca (2,71-29,16 g). Dentre as características fisiológicas verificaram-se as seguintes variações: teor de clorofila total (26,2-39,52; valor SPAD); fotossíntese líquida (20,,73 mol CO2/m 2 /s); condutância estomática (0,02-0,28 cm/s); taxa de transpiração (0,46-2,48 mol/m 2 /s); e déficit de vapor d'água (0,51-2,65 mol H2O/m 2 /s). As análises de macro e micronutrientes indicaram que todos os acessos apresentam quantidade significativa de nutrientes essenciais. Entre os macronutrientes: N, P, K, Ca e Mg variaram, respectivamente, entre 31,2-100; 2,51-8,2; 78,4-276; 9,1-62,2; e 8,7-32,55 ppm. Enquanto os micronutrientes; Zn, Fe e Mn variaram, respectivamente, entre 0,31-1,09; 1,01-13,09; e 0,06-1,32 ppm. Essa grande variabilidade entre os acessos de beldroegas pode contribuir para o melhoramento genético dessa espécie.Palavras-chave: clorofila total, fotossíntese, condutância estomática, transpiração, composição mineral.

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Chemical composition of purslane (Portulaca oleracea)

Cited by 109 publications

References 8 publications

Portulaca olerace Affects Muscarinic Receptors of Guinea Pig Tracheal Smooth Muscle

Portulaca olerace Affects Muscarinic Receptors of Guinea Pig Tracheal Smooth Muscle

Effects of Portulaca oleracea Powder on the Lipid Levels of Rats Fed a Hypercholesterolemia Inducing Diet

Morpho-physiological and mineral nutrient characterization of 45 collected Purslane (Portulaca oleracea L.) accessions

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