{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,10]],"date-time":"2026-05-10T23:24:28Z","timestamp":1778455468021,"version":"3.51.4"},"reference-count":13,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2013,9,16]],"date-time":"2013-09-16T00:00:00Z","timestamp":1379289600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antioxidants"],"abstract":"<jats:p>Rumex dentatus L. and Rumex vesicarius L., of the family Polygonaceae, are edible herbs growing wild in Egypt. Their lipoid constituents were examined by both  liquid chromatography\/mass spectrometry (LC\/MS) and by gas chromatography\/mass spectrometry (GC\/MS). Their essential oil compositions consisted mainly of thujene, limonene, fenchon, estragole, and anethole but at largely different concentration. Fatty acid compositions were similar among the two species and consisting of palmitic, oleic, linoleic and linolenic acids, with R. vesicarius containing much higher level of omega-3-fatty acids. Both of the crude lipid extracts of the two species showed strong antioxidant activity  as a radical quenching agent against 2,2-diphenyl-1-picrylhydrazyl (DPPH) systems. Antioxidant activities were mostly associated with the polar lipid fractions. High performance thin layer chromatography (HPTLC), both in the normal and reversed phase,as well as liquid chromatography\/mass spectrometry (LC\/MS) in the positive and negative electrospray ionization (ESI), showed unique chemical profile for each species that can be useful for species identification and quality control of herbal drug formulations.  R. vesicarius was characterized by abundances of flavonoids and R. dentatus was abundant in anthraquinones and chromones.<\/jats:p>","DOI":"10.3390\/antiox2030167","type":"journal-article","created":{"date-parts":[[2013,9,16]],"date-time":"2013-09-16T11:20:11Z","timestamp":1379330411000},"page":"167-180","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Lipophilic Constituents of Rumex vesicarius L. and  Rumex dentatus L."],"prefix":"10.3390","volume":"2","author":[{"given":"Mona","family":"Elfotoh","sequence":"first","affiliation":[{"name":"Department of Phytochemistry, National Research Center, 12311 Dokki,  Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Khaled","family":"Shams","sequence":"additional","affiliation":[{"name":"Department of Phytochemistry, National Research Center, 12311 Dokki,  Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kevin","family":"Anthony","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Texas Southern University, Houston, TX 77004, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdelaaty","family":"Shahat","sequence":"additional","affiliation":[{"name":"Department of Phytochemistry, National Research Center, 12311 Dokki,  Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Magda","family":"Ibrahim","sequence":"additional","affiliation":[{"name":"Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nevein","family":"Abdelhady","sequence":"additional","affiliation":[{"name":"Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nahla","family":"Azim","sequence":"additional","affiliation":[{"name":"Department of Phytochemistry, National Research Center, 12311 Dokki,  Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Faiza","family":"Hammouda","sequence":"additional","affiliation":[{"name":"Department of Phytochemistry, National Research Center, 12311 Dokki,  Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mostafa","family":"El-Missiry","sequence":"additional","affiliation":[{"name":"Department of Phytochemistry, National Research Center, 12311 Dokki,  Cairo, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mahmoud","family":"Saleh","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Texas Southern University, Houston, TX 77004, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2013,9,16]]},"reference":[{"key":"ref_1","unstructured":"Boulos, L. (2009). Flora of Egypt Checklist Revised\u2014Annotated Edition 2009, Al Hadara Publishing."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"626","DOI":"10.1080\/13880200802179543","article-title":"Antischistosomal and antimicrobial activities of some Egyptian plant species","volume":"46","year":"2008","journal-title":"Pharm. Biol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"552","DOI":"10.1016\/j.jfca.2004.09.004","article-title":"Chemical composition of hummayd (Rumex vesicarius) grown in Saudi Arabia","volume":"19","author":"Alfawaz","year":"2006","journal-title":"J. Food Compos. Anal."},{"key":"ref_4","first-page":"109","article-title":"Evaluation of antibacterial and antioxidant activities of different plant parts of Rumex vesicarius L. (Polygonaceae)","volume":"2","author":"Mostafa","year":"2011","journal-title":"Int. J. Pharm. Pharm. Sci."},{"key":"ref_5","first-page":"368","article-title":"Phytochemical investigation of biologically active substances in certain Kazakhstan Rumex species","volume":"5","author":"Litvinenko","year":"2003","journal-title":"Chem. Nat. Compd."},{"key":"ref_6","first-page":"21","article-title":"A study on antimicrobial activity of Rumex vesicarius Linn","volume":"1","author":"Panduraju","year":"2009","journal-title":"Int. J. Pharm. Technol."},{"key":"ref_7","first-page":"400","article-title":"Diuretic activity on different extracts and formulation on aerial parts of Rumex vesicarius Linn","volume":"3","author":"Rao","year":"2011","journal-title":"J. Chem. Pharm. Res."},{"key":"ref_8","first-page":"170","article-title":"Evaluation of some growth parameters and chemical compostion of in vitro growth seedlings of Rumex vesicarius L. (Polygonaceae)","volume":"7","author":"Mostafa","year":"2011","journal-title":"J. Am. Sci."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1007\/s12892-011-0063-x","article-title":"Antioxidant capacity and phenolic contents of Rumex dentatus","volume":"15","author":"Abdelnaser","year":"2012","journal-title":"J. Crop Sci. Biotechnol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"4526","DOI":"10.3390\/molecules15074526","article-title":"High throughput extraction of plant, marine and fungal specimens for preservation of biologically active molecules","volume":"15","author":"McCloud","year":"2010","journal-title":"Molecules"},{"key":"ref_11","unstructured":"(2008). European Pharmacopoeia 6.0, European Directorate for the Quality of Medicines & HealthCare, Council of Europe."},{"key":"ref_12","unstructured":"Adams, R.P. (2007). Identification of Essential Oil Components by Gas Chromatography\/Mass Spectrometry, Allured Publishing Co.. [4th ed.]."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"753","DOI":"10.1016\/j.bse.2006.04.006","article-title":"Anthraquinones and chromones from Rumex dentatus","volume":"34","author":"Zhu","year":"2006","journal-title":"Biochem. Syst. Ecol."}],"container-title":["Antioxidants"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2076-3921\/2\/3\/167\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:49:20Z","timestamp":1760219360000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2076-3921\/2\/3\/167"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,9,16]]},"references-count":13,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2013,9]]}},"alternative-id":["antiox2030167"],"URL":"https:\/\/doi.org\/10.3390\/antiox2030167","relation":{},"ISSN":["2076-3921"],"issn-type":[{"value":"2076-3921","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,9,16]]}}}