{"id":"https://openalex.org/W2280110465","doi":null,"title":"Simultaneous determination of caffeine and 8 catechins in oolong teas produced in Thailand.","display_name":"Simultaneous determination of caffeine and 8 catechins in oolong teas produced in Thailand.","publication_year":2014,"publication_date":"2014-01-01","ids":{"openalex":"https://openalex.org/W2280110465","mag":"2280110465"},"language":"en","primary_location":{"id":"mag:2280110465","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/20143326030","pdf_url":null,"source":{"id":"https://openalex.org/S2765030195","display_name":"International Food Research Journal","issn_l":"2231-7546","issn":["2231-7546"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310321046","host_organization_name":"University of Putra Malaysia","host_organization_lineage":["https://openalex.org/P4310321046"],"host_organization_lineage_names":["University of Putra Malaysia"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"International Food Research Journal","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5030786101","display_name":"Theerapong Theppakorn","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Theerapong Theppakorn","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034081066","display_name":"A. Luthfivyyah","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. Luthfivyyah","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5012686343","display_name":"K. Ploysri","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"K. Ploysri","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.8003,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.82551783,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"21","issue":"5","first_page":"2055","last_page":"2061"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11411","display_name":"Tea Polyphenols and Effects","score":0.9564999938011169,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11411","display_name":"Tea Polyphenols and Effects","score":0.9564999938011169,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11264","display_name":"Coffee research and impacts","score":0.014399999752640724,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology (medical)"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T14127","display_name":"Food Nutrient Composition and Product Development","score":0.009100000374019146,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/caffeine","display_name":"caffeine","score":0.972000002861023},{"id":"https://openalex.org/keywords/catechins","display_name":"catechins","score":0.9679999947547913},{"id":"https://openalex.org/keywords/oolong-tea","display_name":"oolong tea","score":0.9950000047683716},{"id":"https://openalex.org/keywords/tea-quality","display_name":"tea quality","score":0.41600000858306885},{"id":"https://openalex.org/keywords/simultaneous-determination","display_name":"simultaneous determination","score":0.8709999918937683},{"id":"https://openalex.org/keywords/tea-adulteration","display_name":"tea adulteration","score":0.5659999847412109}],"concepts":[{"id":"https://openalex.org/C2778500429","wikidata":"https://www.wikidata.org/wiki/Q60235","display_name":"Caffeine","level":2,"score":0.7919598817825317},{"id":"https://openalex.org/C31903555","wikidata":"https://www.wikidata.org/wiki/Q1637030","display_name":"Food science","level":1,"score":0.7170871496200562},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.6330634355545044},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.39664843678474426},{"id":"https://openalex.org/C556039675","wikidata":"https://www.wikidata.org/wiki/Q771035","display_name":"Traditional medicine","level":1,"score":0.3371911644935608},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.22260046005249023},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.10115298628807068},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:2280110465","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/20143326030","pdf_url":null,"source":{"id":"https://openalex.org/S2765030195","display_name":"International Food Research Journal","issn_l":"2231-7546","issn":["2231-7546"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310321046","host_organization_name":"University of Putra Malaysia","host_organization_lineage":["https://openalex.org/P4310321046"],"host_organization_lineage_names":["University of Putra Malaysia"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"International Food Research Journal","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W1965844546","https://openalex.org/W1966599364","https://openalex.org/W1970458088","https://openalex.org/W1970501621","https://openalex.org/W1975035407","https://openalex.org/W1979136832","https://openalex.org/W1984326999","https://openalex.org/W1986178251","https://openalex.org/W1989281032","https://openalex.org/W2000519650","https://openalex.org/W2008498323","https://openalex.org/W2010503857","https://openalex.org/W2018682801","https://openalex.org/W2019714199","https://openalex.org/W2021341863","https://openalex.org/W2025967828","https://openalex.org/W2026184418","https://openalex.org/W2030307120","https://openalex.org/W2032048838","https://openalex.org/W2035144866","https://openalex.org/W2036533735","https://openalex.org/W2036780014","https://openalex.org/W2043412777","https://openalex.org/W2043798574","https://openalex.org/W2056189189","https://openalex.org/W2059764571","https://openalex.org/W2061126647","https://openalex.org/W2064338161","https://openalex.org/W2068170525","https://openalex.org/W2068425317","https://openalex.org/W2070771805","https://openalex.org/W2071041518","https://openalex.org/W2076377433","https://openalex.org/W2087315491","https://openalex.org/W2092534738","https://openalex.org/W2099686696","https://openalex.org/W2118920673","https://openalex.org/W2119116383","https://openalex.org/W2150068621","https://openalex.org/W2154240538","https://openalex.org/W2499009570","https://openalex.org/W2767435710"],"related_works":["https://openalex.org/W3087319451","https://openalex.org/W2411034511","https://openalex.org/W7135727908","https://openalex.org/W2364698974","https://openalex.org/W6961103770","https://openalex.org/W2621517698","https://openalex.org/W4404184651","https://openalex.org/W7146010418","https://openalex.org/W3105989678","https://openalex.org/W7061365648"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2020,"cited_by_count":4},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":5}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}