{"created":"2023-05-15T13:38:33.120289+00:00","id":2518,"links":{},"metadata":{"_buckets":{"deposit":"f580a71e-0177-4a19-bed4-c66663a98b2b"},"_deposit":{"created_by":11,"id":"2518","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"2518"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:00002518","sets":["2:581:109","87:627:45"]},"author_link":["1360","6552","6551"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"118","bibliographicPageStart":"113","bibliographicVolumeNumber":"85","bibliographic_titles":[{"bibliographic_title":"Food Control"},{"bibliographic_title":"Food Control","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A fluorescence fingerprint (FF), also known as an excitation–emission matrix, was used to develop a new method of classifying nutmeg contaminated with aflatoxins. The experimental samples were collected from nutmeg with a wide range of fungal contamination levels. After grinding the samples, FF measurement and high–performance liquid chromatography (HPLC) analysis were carried out. The total concentration of aflatoxins (AFB1 + AFB2 + AFG1 + AFG2; total AF concentration) in the samples was determined using HPLC, which varied from 0.0 to 1781.8 ppb. The FFs of the same samples were measured with a fluorescence spectrophotometer. Although the FF patterns changed with increasing total AF concentration, the trend was unclear at lower concentrations. Threfore, models for predicting or classifying AF contamination in nutmeg from FF patterns were developed using partial least–squares regression (PLSR). The total AF concentrations predicted by the PLSR model showed a positive correlation to the actual concentration with a coefficient of determination of 0.69. Moreover, the variable importance in projection plot indicated that fluorescence from AFs as well as from kojic acid derivatives was important for the prediction of total AF concentration. Finally, it was indicated that samples with a total AF concentration of 10 ppb or higher could be reliably discriminated by setting the threshold to 2.2 ppb in the partial least–squares discriminant analysis (PLSDA). While no false negative was observed in the discrimination, the false positive rate was 13.3%. Future studies on nutmeg samples with different origins are necessary to confirm feasibility of FF as a rapid and simple method of predicting aflatoxin contamination of nutmeg.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.foodcont.2017.09.028","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"SC30201804060031"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"NARO成果DBa"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"この論文は出版社版ではありません。引用の際には出版社版をご利用ください。"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"This is not the published version. Please cite only the published version. "}]},{"subitem_relation_name":[{"subitem_relation_name_text":"Green open Access"}]},{"subitem_relation_name":[{"subitem_relation_name_text":"This journal has an embargo period of 12 months."}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Food Control"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.foodcont.2017.09.028","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_18":{"attribute_name":"他の資源との関係","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"author manuscript "}]}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"The Author(s) "},{"subitem_rights":"2017 Published by Elsevier Ltd. "}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0956-7135","subitem_source_identifier_type":"ISSN"}]},"item_10001_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"相山, 怜子"},{"creatorName":"アイヤマ, リョウコ","creatorNameLang":"ja-Kana"},{"creatorName":"AIYAMA, Ryoko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TRIVITTAYASIL, Vipavee"},{"creatorName":"トリヴィッタヤシル, ウィパウィ","creatorNameLang":"ja-Kana"},{"creatorName":"TRIVITTAYASIL, Vipavee","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"蔦, 瑞樹"},{"creatorName":"ツタ, ミズキ","creatorNameLang":"ja-Kana"},{"creatorName":"TSUTA, Mizuki","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-04-01"}],"displaytype":"detail","filename":"SC30201804060031_PrePrint-a.pdf","filesize":[{"value":"738.0 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"SC30201804060031_PrePrint","url":"https://repository.naro.go.jp/record/2518/files/SC30201804060031_PrePrint-a.pdf"},"version_id":"eecef648-76bc-4203-8055-851da73ff567"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Mycotoxin","subitem_subject_scheme":"Other"},{"subitem_subject":"Excitation-emission matrix","subitem_subject_scheme":"Other"},{"subitem_subject":"Spice","subitem_subject_scheme":"Other"},{"subitem_subject":"Partial least squares regression","subitem_subject_scheme":"Other"},{"subitem_subject":"Mycotoxin","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Excitation-emission matrix","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Spice","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Partial least squares regression","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Discrimination of aflatoxin contamination level in nutmeg by fluorescence fingerprint measurement","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Discrimination of aflatoxin contamination level in nutmeg by fluorescence fingerprint measurement"},{"subitem_title":"Discrimination of aflatoxin contamination level in nutmeg by fluorescence fingerprint measurement","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"11","path":["45","109"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-05-14"},"publish_date":"2019-05-14","publish_status":"0","recid":"2518","relation_version_is_last":true,"title":["Discrimination of aflatoxin contamination level in nutmeg by fluorescence fingerprint measurement"],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2023-05-15T16:30:52.602910+00:00"}