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Chemical composition of purslane (Portulaca oleracea)


Purslane (Portulaca oleracea), grown under greenhouse conditions, was harvested at three growth stages and analyzed for total solids, total protein, ash, soluble carbohydrate, and fructose/fructane in whole plants, leaves, stems, and roots. Significant increases were observed in total solids and protein during plant maturation. Leaves had the highest amount of protein in the third growth stage (44.25g/100g dry matter). Roots showed a decline in protein level as the plant aged. Soluble carbohydrate was significantly higher in growth states 1 and 3. Significant variation among growth stages was found with regard to total phosphorous, calcium, potassium, iron, managanese, and copper. Total phosphorus (P) content in leaves was significantly higher than P found in stems and roots. Iron (Fe) content varied significantly among growth stages, and roots and leaves had the highest Fe content (121.47 and 33.21 mg, respectively). Significant accumulation of managanese (Mn) was found in different growth stages. Leaves and roots had significantly higher Mn content than stems.

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  1. AOAC (1984) Official Method of Analysis, 14 ed. Arlington, VA: Association of Official Analytical Chemists.

    Google Scholar 

  2. Hach CC, Brayton SV, Kapenlone AB (1985) A powerful Kjeldahl Nitrogen method using peroxymonosulphuric acid. J Agric Food Chem 33(6): 1117–1123.

    Google Scholar 

  3. Hafez YS, Mohamed AI, Perera PA, Singh G, Hussein AS (1989) Effects of microwave heating and gamma irradiation on phytate and phospholipids contents of soybean (Glycine max L.). J Food Sci 54 (4): 958–962.

    Google Scholar 

  4. Herklots GAC (1972) Purslane: Vegetable in Southeast Asia. South China Morning Post. Ltd., Hong Kong.

    Google Scholar 

  5. Horan MJ, Blaustein MP, Dunbar JB, Grundy S, Kachordurian W, Kaplan NM, Kotchen TA, Simopoulos AP, Van Itallie TB (1985) NIH report on research challenges in nutrition and hypertension. Hypertension 7(5): 818–820.

    PubMed  Google Scholar 

  6. Johnson G, Lambert C, Johnson DK, Sunderwirth SG (1964) Colorimeter determination of glucose, fructose and Sucrose in plant material, using a combination of enzymatic and chemical methods. J Agric Food Chem 12: 216–219.

    Google Scholar 

  7. Kesden D, Will Jr AA (1987) Purslane: An ubiquitous garden weed with nutritional potential. Proc Fla State Hort Soc 100: 195–197.

    Google Scholar 

  8. Omara-Alwala TR, Mebrahtu T, Prior DE, Ezekwe MO (1991) Omega three fatty acids in purslane (Portulaca oleracea) tissues. J Am Oil Chem Soc 68: 198–199.

    Google Scholar 

  9. Simopoulos AP (1987) Terrestrial sources of omega-three Fatty acids: Purslane. p. 93–107. In: Horticulture and human health: Contribution of fruits and vegetables, ed. B. Quebedeaus and F. Bliss, Englewood Cliffs, N.J.: Prentice-Hall.

    Google Scholar 

  10. Simopoulos AP, Salem N (1986) Cholesterol in foods rich in omega-three fatty acids. N Engl J Med 315–833.

  11. Simopoulos AP (1991) Omega-3 fatty acids in health and disease and in growth and development. Am J Clin Nutr 54: 438–463.

    PubMed  Google Scholar 

  12. Snedecor GW, Cochran WG (1980) Statistical Methods. 7 ed. Ames Iowa: Iowa State Univ. Press.

    Google Scholar 

  13. Sotera JJ, Stux RI (1979) Standard conditions for flame operation, Atomic absorption methods manual, vol. 1. Instrumentation Laboratory Inc., Analytical Instrument Division, Wilmington, Mass.

    Google Scholar 

  14. Tapia I, Rita J (1983) Biomass and protein production ofPortulaca oleracea L. Photosynthesis and plant productivity. Stuttgart: Wissenschaftliche Verlagesellschaft, pp. 89–92.

    Google Scholar 

  15. Vengris J, Dunn S, Stacewictz-Sapuncakis M (1972) Life history studies as related to weed control in the Northeast. 7. Common purslane. Research Bulletin, #598. Amherst: The University of Massachusetts, Agricultural Experimental Station.

    Google Scholar 

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Mohamed, A.I., Hussein, A.S. Chemical composition of purslane (Portulaca oleracea). Plant Food Hum Nutr 45, 1–9 (1994).

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