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The plant has also been a rich source of biologically active compounds. The present study was designed to isolate pure compound from ethyl acetate fraction of methanol extract of leaves and to know the efficacy as antioxidant as well as its anti-tumor activity on Ehrlich ascites carcinoma cell (EAC).\u00a0\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      The leaves were extracted with methanol and fractionated with different solvents. The isolation of the compound was carried out by column chromatography from ethyl acetate fraction (EAF) and structure was revealed by\n                      <jats:sup>1<\/jats:sup>\n                      H-NMR and\n                      <jats:sup>13<\/jats:sup>\n                      C NMR. The antioxidant activity was investigated by the scavenging of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals as well as the inhibition of oxidative damage of pUC19 plasmid DNA, hemolysis and lipid peroxidation induced by a water-soluble free radical initiator 2,2\u2019-azo (2-asmidinopropane) dihydrochloride (AAPH) in human erythrocytes. In vivo anti-tumor activity of the compound was also evaluated by determining the viable tumor cell count, hematological profiles of experimental mice along with observing morphological changes of EAC cells by fluorescence microscope.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The isolated compound kaempferol-3-O-alpha-L-rhamnoside effectively inhibited AAPH induced oxidation in DNA and human erythrocyte model and lipid per oxidation as well as a stronger DPPH radical scavenging activity. In anti-tumor assay, at a dose of 50\u00a0mg\/kg body weight exhibit about 70.89\u2009\u00b1\u20096.62% EAC cell growth inhibition, whereas standard anticancer drug vincristine showed 77.84\u2009\u00b1\u20096.69% growth inhibition.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The compound may have a great importance as a therapeutic agent in preventing oxidative damage of biomolecules and therapeutic use in chemotherapy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12906-022-03633-x","type":"journal-article","created":{"date-parts":[[2022,6,22]],"date-time":"2022-06-22T09:03:10Z","timestamp":1655888590000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":43,"title":["Anti-tumor and antioxidant activity of kaempferol-3-O-alpha-L-rhamnoside (Afzelin) isolated from Pithecellobium dulce leaves"],"prefix":"10.1186","volume":"22","author":[{"given":"Masuma","family":"Akter","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mst. 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Blood samples were collected from healthy adults with the informed consent of all participants in the study. All procedures of this study adhere to the ARRIVE Guidelines for reporting animal research.The plant material was collected by following the ethics standard for research activity on plants established at Department of Pharmacy, University of Rajshahi, Bangladesh and were authenticated by a taxonomist, Prof. AHM Mahbubur Rahman, Dept. of Botany, University of Rajshahi and given Accession no. 48085.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"169"}}