{"corpus_id":98175117,"paper_sha":"e49d769531773f3f285a96455f8dbb2920b03fca","doi":"10.1590/1983-084X/12_114","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2138773978,"dblp_id":null,"acl_id":null,"title":"Prospecção fitoquímica de Himatanthus drasticus Plumel (Apocynaceae), da mesorregião leste maranhense","year":2014,"publication_date":null,"venue":"","journal":{"name":"","pages":"657-662","volume":"16"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Agricultural and Food Sciences","Chemistry"],"reference_count":9,"citation_count":17,"influential_citation_count":0,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":"http://www.scielo.br/pdf/rbpm/v16n3s1/04.pdf","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/e49d769531773f3f285a96455f8dbb2920b03fca","s2_open_access_license":"CCBY","s2_open_access_status":"GOLD","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"The indiscriminate use of the plant Himatanthus drasticus (Janauba) by small goat farmers to control nematode parasites in small ruminants was the aim of this phytochemical study of the plant. Barks were collected in the eastern mesoregion of the state of Maranhao, Brazil, and sent to the laboratory for botanical and phytochemical identification by the methodology of Preliminary Prospecting and TLC, testing for the various classes of secondary metabolites. From the ground, dehydrated bark, we conducted the preparation of the crude extract (CE). The material was placed in a water-alcohol mixture of EtOH:H2O (7:3 v:v) and subjected to sporadic mechanical agitation. The subextracts were obtained using the HACE process by liquid-liquid partition, ETOH:H2O (2:1, v:v). The mixtures were prepared with organic solvents of increasing polarity, such as hexane, ethyl acetate and butanol. The GC analysis showed the presence of groups of secondary metabolites in the extract and subextractes. The classes of secondary metabolites that showed greater expressiveness are the alkaloids and tannins, when analyzed by prospecting, and flavonoids and terpenes, when analyzed by TLC, and H. drasticus presents elements indicative of pharmacological action.","claims":[{"public_id":"cl_0aaf87a8f9b43f007789123202f5d01e","status":"active","text":"Alkaloids and tannins were the most prominent classes in the prospecting analysis.","confidence":0.92,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_0aaf87a8f9b43f007789123202f5d01e"},{"public_id":"cl_bb5b1a7152570464b78784fbccc31847","status":"active","text":"Flavonoids and terpenes were the most prominent classes in the TLC analysis.","confidence":0.92,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous 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