{"id":"https://openalex.org/W4382811006","doi":"https://doi.org/10.19261/cjm.2023.910","title":"Synthesis of quercetin functionalized chitosan and determination of antioxidant properties","display_name":"Synthesis of quercetin functionalized chitosan and determination of antioxidant properties","publication_year":2023,"publication_date":"2023-06-01","ids":{"openalex":"https://openalex.org/W4382811006","doi":"https://doi.org/10.19261/cjm.2023.910"},"language":"en","primary_location":{"id":"doi:10.19261/cjm.2023.910","doi":"https://doi.org/10.19261/cjm.2023.910","is_oa":true,"landing_page_url":"https://doi.org/10.19261/cjm.2023.910","pdf_url":"http://cjm.ichem.md/sites/default/files/article_files/ChemJMold_10.19261cjm.2023.910-Gonta.pdf","source":{"id":"https://openalex.org/S2764549734","display_name":"Chemistry Journal of Moldova","issn_l":"1857-1727","issn":["1857-1727","2345-1688"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","dongbi-c","norway-1","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310322546","host_organization_name":"Institute of Chemistry of ASM","host_organization_lineage":["https://openalex.org/P4310322546"],"host_organization_lineage_names":["Institute of Chemistry of ASM"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chemistry Journal of Moldova","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"http://cjm.ichem.md/sites/default/files/article_files/ChemJMold_10.19261cjm.2023.910-Gonta.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5038568881","display_name":"Maria Vasile Gonta","orcid":"https://orcid.org/0000-0003-3476-0967","observed_orcids":["https://orcid.org/0000-0003-3476-0967"]},"institutions":[{"id":"https://openalex.org/I29920723","display_name":"Moldova State University","ror":"https://ror.org/0475kvb92","country_code":"MD","type":"education","lineage":["https://openalex.org/I29920723"]}],"countries":["MD"],"is_corresponding":false,"raw_author_name":"Maria Gonta","raw_affiliation_strings":["Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova"],"raw_orcid":"https://orcid.org/0000-0003-3476-0967","affiliations":[{"raw_affiliation_string":"Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova","institution_ids":["https://openalex.org/I29920723"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000700559","display_name":"Gheorghe G. Duca","orcid":"https://orcid.org/0000-0001-7265-6293","observed_orcids":["https://orcid.org/0000-0001-7265-6293"]},"institutions":[{"id":"https://openalex.org/I29920723","display_name":"Moldova State University","ror":"https://ror.org/0475kvb92","country_code":"MD","type":"education","lineage":["https://openalex.org/I29920723"]},{"id":"https://openalex.org/I4210155529","display_name":"Institute of Chemistry","ror":"https://ror.org/04hzk8845","country_code":"MD","type":"facility","lineage":["https://openalex.org/I112090838","https://openalex.org/I4210155529"]}],"countries":["MD"],"is_corresponding":false,"raw_author_name":"Gheorghe Duca","raw_affiliation_strings":["Institute of Chemistry , Moldova State University , 3 Academiei str. , Chisinau MD-2028 , Republic of Moldova"],"raw_orcid":"https://orcid.org/0000-0001-7265-6293","affiliations":[{"raw_affiliation_string":"Institute of Chemistry , Moldova State University , 3 Academiei str. , Chisinau MD-2028 , Republic of Moldova","institution_ids":["https://openalex.org/I29920723","https://openalex.org/I4210155529"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112201803","display_name":"Elena S\u00eerbu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I29920723","display_name":"Moldova State University","ror":"https://ror.org/0475kvb92","country_code":"MD","type":"education","lineage":["https://openalex.org/I29920723"]}],"countries":["MD"],"is_corresponding":false,"raw_author_name":"Elena Sirbu","raw_affiliation_strings":["Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova","institution_ids":["https://openalex.org/I29920723"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041676163","display_name":"\u015etefan Robu","orcid":"https://orcid.org/0000-0002-9804-5543","observed_orcids":["https://orcid.org/0000-0002-9804-5543"]},"institutions":[{"id":"https://openalex.org/I29920723","display_name":"Moldova State University","ror":"https://ror.org/0475kvb92","country_code":"MD","type":"education","lineage":["https://openalex.org/I29920723"]}],"countries":["MD"],"is_corresponding":false,"raw_author_name":"Stefan Robu","raw_affiliation_strings":["Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova","institution_ids":["https://openalex.org/I29920723"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5023458369","display_name":"Larisa Mocanu","orcid":"https://orcid.org/0000-0003-3306-5292","observed_orcids":["https://orcid.org/0000-0003-3306-5292"]},"institutions":[{"id":"https://openalex.org/I29920723","display_name":"Moldova State University","ror":"https://ror.org/0475kvb92","country_code":"MD","type":"education","lineage":["https://openalex.org/I29920723"]}],"countries":["MD"],"is_corresponding":false,"raw_author_name":"Larisa Mocanu","raw_affiliation_strings":["Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova"],"raw_orcid":"https://orcid.org/0000-0003-3306-5292","affiliations":[{"raw_affiliation_string":"Department Industrial and Environmental Chemistry , Faculty of Chemistry and Chemical Technology , Moldova State University , 60, Alexe Mateevici str. , Chisinau MD-2009 , Republic of Moldova","institution_ids":["https://openalex.org/I29920723"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4583,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.42467858,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":98},"biblio":{"volume":"18","issue":"1","first_page":"38","last_page":"45"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10488","display_name":"Nanocomposite Films for Food Packaging","score":0.9110999703407288,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10488","display_name":"Nanocomposite Films for Food Packaging","score":0.9110999703407288,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14303","display_name":"Polymer Synthesis and Characterization","score":0.02539999969303608,"subfield":{"id":"https://openalex.org/subfields/2507","display_name":"Polymers and Plastics"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12192","display_name":"Polysaccharides Composition and Applications","score":0.019899999722838402,"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/chitosan","display_name":"chitosan","score":0.8610000014305115},{"id":"https://openalex.org/keywords/quercetin","display_name":"quercetin","score":1.0},{"id":"https://openalex.org/keywords/antioxidant-activity","display_name":"antioxidant activity","score":0.843999981880188},{"id":"https://openalex.org/keywords/graft-copolymerization","display_name":"graft copolymerization","score":0.7409999966621399},{"id":"https://openalex.org/keywords/low-molecular-weight-chitosan","display_name":"low molecular weight chitosan","score":0.8379999995231628},{"id":"https://openalex.org/keywords/hydrogen-peroxide-oxidation","display_name":"hydrogen peroxide oxidation","score":0.9300000071525574},{"id":"https://openalex.org/keywords/ethyl-chloroformate","display_name":"ethyl chloroformate","score":0.9259999990463257},{"id":"https://openalex.org/keywords/dpph-radical-scavenging-activity","display_name":"DPPH radical scavenging","score":0.8889999985694885},{"id":"https://openalex.org/keywords/polymer-molecular-weight","display_name":"polymer molecular weight","score":0.6869999766349792},{"id":"https://openalex.org/keywords/oxidation-inhibition","display_name":"oxidation inhibition","score":0.5460000038146973}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.8378793597221375},{"id":"https://openalex.org/C2779732960","wikidata":"https://www.wikidata.org/wiki/Q408510","display_name":"Chitosan","level":2,"score":0.8214983940124512},{"id":"https://openalex.org/C2775937945","wikidata":"https://www.wikidata.org/wiki/Q222958","display_name":"Grafting","level":3,"score":0.7402770519256592},{"id":"https://openalex.org/C2781263971","wikidata":"https://www.wikidata.org/wiki/Q409478","display_name":"Quercetin","level":3,"score":0.6970237493515015},{"id":"https://openalex.org/C115537861","wikidata":"https://www.wikidata.org/wiki/Q7645993","display_name":"Surface modification","level":2,"score":0.6838361024856567},{"id":"https://openalex.org/C2778004101","wikidata":"https://www.wikidata.org/wiki/Q133948","display_name":"Antioxidant","level":2,"score":0.6046991944313049},{"id":"https://openalex.org/C2781401929","wikidata":"https://www.wikidata.org/wiki/Q5205953","display_name":"DPPH","level":3,"score":0.5709143280982971},{"id":"https://openalex.org/C188027245","wikidata":"https://www.wikidata.org/wiki/Q750446","display_name":"Polymer chemistry","level":1,"score":0.44147759675979614},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.4232293963432312},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.40253108739852905},{"id":"https://openalex.org/C13965031","wikidata":"https://www.wikidata.org/wiki/Q243545","display_name":"Nuclear chemistry","level":1,"score":0.3362007737159729},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.19261/cjm.2023.910","doi":"https://doi.org/10.19261/cjm.2023.910","is_oa":true,"landing_page_url":"https://doi.org/10.19261/cjm.2023.910","pdf_url":"http://cjm.ichem.md/sites/default/files/article_files/ChemJMold_10.19261cjm.2023.910-Gonta.pdf","source":{"id":"https://openalex.org/S2764549734","display_name":"Chemistry Journal of Moldova","issn_l":"1857-1727","issn":["1857-1727","2345-1688"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","dongbi-c","norway-1","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310322546","host_organization_name":"Institute of Chemistry of ASM","host_organization_lineage":["https://openalex.org/P4310322546"],"host_organization_lineage_names":["Institute of Chemistry of ASM"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chemistry Journal of Moldova","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:f1ced2281ab14ef499288e8922a7b7cf","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/f1ced2281ab14ef499288e8922a7b7cf","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 18, Iss 1, Pp 38-45 (2023)","raw_type":"article"},{"id":"pmh:oai:ibn.idsi.md:151340","doi":null,"is_oa":true,"landing_page_url":"https://ibn.idsi.md/vizualizare_articol/151340","pdf_url":null,"source":null,"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Ecological and environmental chemistry (Edi\u021bia 7, Vol.1)","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:ibn.idsi.md:183754","doi":null,"is_oa":true,"landing_page_url":"https://ibn.idsi.md/vizualizare_articol/183754","pdf_url":null,"source":null,"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Chemistry Journal of Moldova 18 (1) 38-45","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.19261/cjm.2023.910","doi":"https://doi.org/10.19261/cjm.2023.910","is_oa":true,"landing_page_url":"https://doi.org/10.19261/cjm.2023.910","pdf_url":"http://cjm.ichem.md/sites/default/files/article_files/ChemJMold_10.19261cjm.2023.910-Gonta.pdf","source":{"id":"https://openalex.org/S2764549734","display_name":"Chemistry Journal of Moldova","issn_l":"1857-1727","issn":["1857-1727","2345-1688"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","dongbi-c","norway-1","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310322546","host_organization_name":"Institute of Chemistry of ASM","host_organization_lineage":["https://openalex.org/P4310322546"],"host_organization_lineage_names":["Institute of Chemistry of ASM"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chemistry Journal of Moldova","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4382811006.pdf","grobid_xml":"https://content.openalex.org/works/W4382811006.grobid-xml"},"referenced_works_count":21,"referenced_works":["https://openalex.org/W1687456515","https://openalex.org/W1965345120","https://openalex.org/W2032379435","https://openalex.org/W2039973160","https://openalex.org/W2076490457","https://openalex.org/W2078661836","https://openalex.org/W2121618836","https://openalex.org/W2135741084","https://openalex.org/W2317435305","https://openalex.org/W2768406954","https://openalex.org/W2791769688","https://openalex.org/W2902305920","https://openalex.org/W2923505475","https://openalex.org/W2941043263","https://openalex.org/W2974790272","https://openalex.org/W3012608664","https://openalex.org/W3120704123","https://openalex.org/W3160110767","https://openalex.org/W3175126077","https://openalex.org/W4200167240","https://openalex.org/W4286762276"],"related_works":["https://openalex.org/W2981859716","https://openalex.org/W2974790272","https://openalex.org/W3001900793","https://openalex.org/W2027025277","https://openalex.org/W2079083842","https://openalex.org/W2792023112","https://openalex.org/W6983345410","https://openalex.org/W2770865610","https://openalex.org/W2911890293","https://openalex.org/W2032379435"],"abstract_inverted_index":{"This":[0],"paper":[1],"is":[2],"dedicated":[3],"to":[4,77,85,96,143,165],"the":[5,21,25,30,34,58,68,79,82,86,93,97,105,124,137,151,167,174],"synthesis":[6],"of":[7,24,33,72,81,89,104,140,169],"a":[8,134,149,156],"copolymer":[9],"with":[10,17,49,55,74,112,146],"reducing":[11],"properties":[12,103],"obtained":[13,27,44,107,130],"by":[14,45,57,108,115,123],"functionalizing":[15],"chitosan":[16,42,48,73,111,120,141],"quercetin":[18,56,90,94,113],"and":[19,52,91,114,160,177],"determining":[20],"antioxidant":[22,102,158],"activity":[23,159],"derivatives":[26],"depending":[28],"on":[29],"molar":[31],"mass":[32],"polymer.":[35],"For":[36],"this":[37],"purpose,":[38],"low":[39,117],"molecular":[40,118,138],"weight":[41,119,139],"was":[43,65],"oxidizing":[46],"commercial":[47],"hydrogen":[50],"peroxide":[51],"further":[53],"functionalization":[54,63,71],"covalent":[59],"grafting":[60,92,109,116,145],"method.":[61,128],"The":[62,100,129],"process":[64],"performed":[66],"through":[67],"following":[69],"steps:":[70],"ethyl":[75],"chloroformate":[76],"increase":[78],"reactivity":[80],"amine":[83],"group":[84,88],"hydroxyl":[87],"molecule":[95],"synthesized":[98],"intermediate.":[99],"comparative":[101],"composite":[106,154],"technical":[110],"were":[121],"studied":[122],"DPPH":[125],"(2,2-diphenyl-1-picrylhydrazyl":[126],"radical)":[127],"results":[131],"indicate":[132],"that":[133],"decrease":[135],"in":[136,173],"contributed":[142],"its":[144],"quercetin.":[147],"As":[148],"result,":[150],"functionalized":[152],"polymer":[153],"acquired":[155],"higher":[157],"can":[161],"be":[162],"successfully":[163],"used":[164],"inhibit":[166],"oxidation":[168],"various":[170],"organic":[171],"substrates":[172],"cosmetic,":[175],"food":[176],"pharmaceutical":[178],"industries.":[179]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2023-07-02T00:00:00"}