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Validation of analytical method for α‐dicarbonyl compounds using gas chromatography–nitrogen phosphorous detector and their levels in alcoholic beverages
Author(s) -
Jeong JunHyun,
Cha Jiyoon,
Lee KwangGeun
Publication year - 2017
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.13414
Subject(s) - wine , chemistry , detection limit , methylglyoxal , glyoxal , gas chromatography , diacetyl , chromatography , nitrogen , food science , population , medicine , biochemistry , organic chemistry , enzyme , environmental health
Summary This study aimed to establish an analytical method for α‐dicarbonyl compounds (α‐ DC s) including glyoxal, methylglyoxal and diacetyl, to determine the content of α‐ DC s in 101 various alcoholic beverages using gas chromatography–nitrogen phosphorous detector ( GC ‐ NPD ) and to perform exposure assessment. The limit of detection and limit of quantification for α‐ DC s were 0.05–0.22 and 0.15–0.70 μg g −1 , respectively. The accuracy and precision were validated in five matrices. The raspberry fruit wine had the highest value at 139.74 μg g −1 total α‐ DC s. The lowest α‐ DC concentration among the beverages was detected in rice wine ( Makgeolli ) at 1.59 μg g −1 . The levels of α‐ DC s in various samples were detected as follows: 1.59–56.68 μg g −1 in rice wine ( Makgeolli ), 2.73–16.77 μg g −1 in beer, 8.22–139.74 μg g −1 in fruit wine and 8.17–91.56 μg g −1 in rice wine ( Cheongju ). The estimated daily intake of α‐ DC s in the intake‐only group and population group was calculated as 4.22–97.94 μg kg −1 bw day −1 and 0.28–7.13 μg kg −1 bw day −1 , respectively.