Journal Highlight: Validation of analytical method for α-dicarbonyl compounds using gas chromatography–nitrogen phosphorous detector and their levels in alcoholic beverages

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  • Published: Jun 12, 2017
  • Author: separationsNOW
  • Channels: Gas Chromatography
thumbnail image: Journal Highlight: Validation of analytical method for α-dicarbonyl compounds using gas chromatography–nitrogen phosphorous detector and their levels in alcoholic beverages

A GC-NPD method has been developed to measure α-dicarbonyl compounds including glyoxal, methylglyoxal and diacetyl in 101 alcoholic beverages then perform exposure assessments.

Validation of analytical method for α-dicarbonyl compounds using gas chromatography–nitrogen phosphorous detector and their levels in alcoholic beverages

International Journal of Food Science & Technology, 2017, 52, 1491-1497
Jun-Hyun Jeong, Jiyoon Cha and Kwang-Geun Lee

Abstract: This study aimed to establish an analytical method for α-dicarbonyl compounds (α-DCs) including glyoxal, methylglyoxal and diacetyl, to determine the content of α-DCs 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-DCs 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-DCs. The lowest α-DC concentration among the beverages was detected in rice wine (Makgeolli) at 1.59 μg g−1. The levels of α-DCs 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-DCs 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.

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