Determination of toxic α-dicarbonyl compounds in sesame oils using dispersive liquid-liquid microextraction coupled with gas chromatography-mass spectrometry

被引：9

作者：

Lee, Jangho ^{[1
]}

Nam, Tae Gyu ^{[2
]}

Choi, Hyo-Kyoung ^{[1
]}

Jang, Hae Won ^{[3
]}

机构：

[1] Korea Food Res Inst, Wonju 55365, South Korea

[2] Kyonggi Univ, Div Bioconvergence, Major Food Sci & Biotechnol, Suwon 16227, South Korea

[3] Sungshin Womens Univ, Dept Food Sci & Biotechnol, 55,76 Ga Gil, Seoul 01133, South Korea

来源：

FOOD CHEMISTRY-X | 2024年 / 22卷

基金：

新加坡国家研究基金会;

关键词：

Diacetyl; Dispersive liquid-liquid microextraction; Glyoxal; Methylglyoxal; Sesame oil; GLYOXAL; METHYLGLYOXAL; DIACETYL; OPTIMIZATION; WATER;

D O I：

10.1016/j.fochx.2024.101302

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Glyoxal, methylglyoxal, and diacetyl are toxic alpha-dicarbonyl compounds found in heat-processed foods, including edible oils. Dispersive liquid-liquid microextraction was combined with gas chromatography mass spectrometry to determine the glyoxal, methylglyoxal, and diacetyl contents in sesame oil. Chloroform and methanol were selected as the optimal extraction and dispersive solvents, respectively. The maximum derivatization efficiency was obtained using 500 mu g of the derivatization agent, o-phenylenediamine. The derivatization of glyoxal was completed in 1 h, whereas those of methylglyoxal and diacetyl were completed immediately. The optimized method was validated, and was found to exhibit a good linearity, recovery, intraday repeatability, and interday reproducibility. The alpha-dicarbonyl compound concentrations in the oils were dependent on the roasting temperature. The sesame oil concentrates contained 0-175.4, 0-990.5, and 0-220.9 ng g(-1) of glyoxal, methylglyoxal, and diacetyl, respectively. For the perilla oils, the respective concentrations were 0-96.4, 0-410.8, and 0-197.5 ng g(-1).

引用

页数：7

共 27 条

[1] Connective tissue growth factor plays an important role in advance glycation end product-induced tubular epithelial-to-mesenchymal transition: Implications for diabetic renal disease [J].