{"id":"https://openalex.org/W2075935640","doi":"https://doi.org/10.1081/jlc-100105147","title":"SEPARATION OF THEAFLAVINS OF BLACK TEA. HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY VS. SEPHADEX LH-20 GEL COLUMN CHROMATOGRAPHY","display_name":"SEPARATION OF THEAFLAVINS OF BLACK TEA. HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY VS. SEPHADEX LH-20 GEL COLUMN CHROMATOGRAPHY","publication_year":2001,"publication_date":"2001-09-30","ids":{"openalex":"https://openalex.org/W2075935640","doi":"https://doi.org/10.1081/jlc-100105147","mag":"2075935640"},"language":"en","primary_location":{"id":"doi:10.1081/jlc-100105147","doi":"https://doi.org/10.1081/jlc-100105147","is_oa":false,"landing_page_url":"https://doi.org/10.1081/jlc-100105147","pdf_url":null,"source":{"id":"https://openalex.org/S123147032","display_name":"Journal of Liquid Chromatography & Related Technologies","issn_l":"1082-6076","issn":["1082-6076","1520-572X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","doyens","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Liquid Chromatography & Related Technologies","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5034408688","display_name":"Qizhen Du","orcid":"https://orcid.org/0000-0003-2969-2840","observed_orcids":["https://orcid.org/0000-0003-2969-2840"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Qizhen Du","raw_affiliation_strings":["a  Institute of Food and Biological Engineering, Hangzhou University of Commerce , 310035,  P.R. China","Institute of Food and Biological Engineering, Hangzhou University of Commerce , 310035, P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a  Institute of Food and Biological Engineering, Hangzhou University of Commerce , 310035,  P.R. China","institution_ids":[]},{"raw_affiliation_string":"Institute of Food and Biological Engineering, Hangzhou University of Commerce , 310035, P.R. China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008379142","display_name":"Heyuan Jiang","orcid":"https://orcid.org/0000-0002-3101-7951","observed_orcids":["https://orcid.org/0000-0002-3101-7951"]},"institutions":[{"id":"https://openalex.org/I4210138501","display_name":"Chinese Academy of Agricultural Sciences","ror":"https://ror.org/0313jb750","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210127390","https://openalex.org/I4210138501","https://openalex.org/I4210151987"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Heyuan Jiang","raw_affiliation_strings":["b  Graduate School of the Chinese Academy of Agricultural Sciences , Beijing, 100081,  P.R. China","Graduate School of the Chinese Academy of Agricultural Sciences , Beijing, 100081, P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b  Graduate School of the Chinese Academy of Agricultural Sciences , Beijing, 100081,  P.R. China","institution_ids":["https://openalex.org/I4210138501"]},{"raw_affiliation_string":"Graduate School of the Chinese Academy of Agricultural Sciences , Beijing, 100081, P.R. China","institution_ids":["https://openalex.org/I4210138501"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029128268","display_name":"Yoichiro Ito","orcid":"https://orcid.org/0000-0001-9018-295X","observed_orcids":["https://orcid.org/0000-0001-9018-295X"]},"institutions":[{"id":"https://openalex.org/I1299303238","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88","country_code":"US","type":"government","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238"]},{"id":"https://openalex.org/I4210106489","display_name":"National Heart, Lung, and Blood Institute","ror":"https://ror.org/012pb6c26","country_code":"US","type":"facility","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I4210106489"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yoichiro Ito","raw_affiliation_strings":["c   Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute, National Institutes of Heath , Bldg. 10, Rm 7N322, Bethesda, MD, 20892-1676,  U.S.A","Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute, National Institutes of Heath , Bldg. 10, Rm 7N322, Bethesda, MD, 20892-1676, U.S.A"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"c   Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute, National Institutes of Heath , Bldg. 10, Rm 7N322, Bethesda, MD, 20892-1676,  U.S.A","institution_ids":["https://openalex.org/I4210106489"]},{"raw_affiliation_string":"Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute, National Institutes of Heath , Bldg. 10, Rm 7N322, Bethesda, MD, 20892-1676, U.S.A","institution_ids":["https://openalex.org/I1299303238","https://openalex.org/I4210106489"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.5177,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.7969142,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"24","issue":"15","first_page":"2363","last_page":"2369"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13128","display_name":"Chromatography in Natural Products","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13128","display_name":"Chromatography in Natural Products","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10908","display_name":"Analytical Chemistry and Chromatography","score":0.0012000000569969416,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11411","display_name":"Tea Polyphenols and Effects","score":0.0008999999845400453,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/theaflavins","display_name":"theaflavins","score":0.9990000128746033},{"id":"https://openalex.org/keywords/black-tea","display_name":"black tea","score":0.968999981880188},{"id":"https://openalex.org/keywords/high-speed-countercurrent-chromatography","display_name":"high-speed countercurrent chromatography","score":0.9380000233650208},{"id":"https://openalex.org/keywords/sephadex-lh-20","display_name":"Sephadex LH-20","score":0.925000011920929},{"id":"https://openalex.org/keywords/theaflavin-3-gallate","display_name":"theaflavin-3-gallate","score":0.9819999933242798},{"id":"https://openalex.org/keywords/flavonoid-separation","display_name":"flavonoid separation","score":0.6470000147819519},{"id":"https://openalex.org/keywords/two-phase-solvent-system","display_name":"two-phase solvent system","score":0.640999972820282}],"concepts":[{"id":"https://openalex.org/C2780487065","wikidata":"https://www.wikidata.org/wiki/Q415677","display_name":"Theaflavin","level":4,"score":0.9852365255355835},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9350152015686035},{"id":"https://openalex.org/C63258622","wikidata":"https://www.wikidata.org/wiki/Q1498317","display_name":"Countercurrent chromatography","level":3,"score":0.9058624505996704},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.89708411693573},{"id":"https://openalex.org/C163994747","wikidata":"https://www.wikidata.org/wiki/Q2916358","display_name":"Sephadex","level":3,"score":0.7183260321617126},{"id":"https://openalex.org/C51724486","wikidata":"https://www.wikidata.org/wiki/Q908955","display_name":"Column chromatography","level":2,"score":0.5653709173202515},{"id":"https://openalex.org/C2779858419","wikidata":"https://www.wikidata.org/wiki/Q407153","display_name":"Ethyl acetate","level":2,"score":0.49073469638824463},{"id":"https://openalex.org/C179998833","wikidata":"https://www.wikidata.org/wiki/Q381233","display_name":"High-performance liquid chromatography","level":2,"score":0.43263471126556396},{"id":"https://openalex.org/C73826308","wikidata":"https://www.wikidata.org/wiki/Q684907","display_name":"Elution","level":2,"score":0.4179225564002991},{"id":"https://openalex.org/C63179538","wikidata":"https://www.wikidata.org/wiki/Q854422","display_name":"Gel permeation chromatography","level":3,"score":0.4129737615585327},{"id":"https://openalex.org/C70899900","wikidata":"https://www.wikidata.org/wiki/Q290439","display_name":"Polyphenol","level":3,"score":0.17991745471954346},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.07954815030097961},{"id":"https://openalex.org/C181199279","wikidata":"https://www.wikidata.org/wiki/Q8047","display_name":"Enzyme","level":2,"score":0.0},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.0},{"id":"https://openalex.org/C2778004101","wikidata":"https://www.wikidata.org/wiki/Q133948","display_name":"Antioxidant","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1081/jlc-100105147","doi":"https://doi.org/10.1081/jlc-100105147","is_oa":false,"landing_page_url":"https://doi.org/10.1081/jlc-100105147","pdf_url":null,"source":{"id":"https://openalex.org/S123147032","display_name":"Journal of Liquid Chromatography & Related Technologies","issn_l":"1082-6076","issn":["1082-6076","1520-572X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","doyens","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Liquid Chromatography & Related Technologies","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1993988159","https://openalex.org/W2035412714","https://openalex.org/W2094178208","https://openalex.org/W2103862920","https://openalex.org/W2125043307"],"related_works":["https://openalex.org/W1990673132","https://openalex.org/W2518986143","https://openalex.org/W147931692","https://openalex.org/W2088489646","https://openalex.org/W2361280821","https://openalex.org/W2364479505","https://openalex.org/W2392159754","https://openalex.org/W1843077226","https://openalex.org/W2076377433","https://openalex.org/W2049854877"],"abstract_inverted_index":{"Performance":[0],"of":[1,22,27,43,63,78,96,107],"two":[2],"chromatographic":[3],"techniques,":[4],"high-speed":[5],"countercurrent":[6],"chromatography":[7,15,88],"(HSCCC)":[8],"and":[9,75,80],"conventional":[10],"Sephadex":[11,86],"LH-20":[12],"gel":[13],"column":[14,87],"(GLC),":[16],"was":[17,34,66],"compared":[18],"in":[19,82],"the":[20,25,50,64,97],"separation":[21,92],"theaflavins":[23],"from":[24],"extract":[26],"black":[28],"tea":[29],"leaves.":[30],"The":[31],"HSCCC":[32],"run":[33],"carried":[35],"out":[36],"with":[37],"a":[38,76,90,102],"two-phase":[39],"solvent":[40],"system":[41],"composed":[42],"hexane/ethyl":[44],"acetate/methanol/water":[45],"(1:3:1:6,":[46],"v/v)":[47],"by":[48],"eluting":[49],"lower":[51],"aqueous":[52],"phase":[53],"at":[54,57],"2":[55],"mL/min":[56],"800":[58],"rpm":[59],"where":[60],"200":[61],"mg":[62,95],"sample":[65],"resolved":[67],"into":[68],"three":[69],"peaks":[70],"corresponding":[71],"to":[72],"theaflavin,":[73],"theaflavin-3,3'-gallate,":[74],"mixture":[77],"theaflavin-3-gallate":[79],"theaflavin-3'-gallate":[81],"4.1":[83],"hrs.":[84,109],"Although,":[85],"yielded":[89],"similar":[91],"for":[93],"100":[94],"same":[98],"sample,":[99],"it":[100],"required":[101],"much":[103],"longer":[104],"elution":[105],"time":[106],"21":[108]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-09-23T05:00:35.095934","created_date":"2016-06-24T00:00:00"}