Β-carbolines norharman and harman in vegetable oils in China. Issue 3 (2nd July 2020)

• Record Type: Journal Article
• Authors: Zhang, Chen-Xia; Xi, Jun; Zhao, Tian-Pei; Ma, Yu-Xiang; Wang, Xue-De
• Is Part Of: Food additives & contaminants. Volume 13:Issue 3(2020)
• Page Start: 193
• Page End: 199
• Publication Date: 2020-07-02
• Subjects: Β-carbolines -- norharman -- harman -- heterocyclic aromatic amines -- vegetable oil; Food additives -- Periodicals; Food contamination -- Periodicals; 664.07
• DOI: 10.1080/19393210.2020.1759701
• Languages: English
• ISSNs: 1939-3210

Abstract

ABSTRACT: The beta-carbolines norharman and harman, two heterocyclic aromatic amines with potential mutagenicity, have been determined in vegetable oils. Identification and analysis were carried out by ultra-performance liquid chromatography-triple quadrupole tandem mass spectrometry (UPLC-MS/MS). In 88 samples analysed, the concentrations of norharman and harman were < LOD to 336.22 ng/g and < LOD to 505.14 ng/g, respectively. A high variability of norharman and harman levels among different oil types was observed. Sesame-, flaxseed-, sunflower seed-, peanut- and rapeseed oils were most contaminated. Both β -carbolines were most likely formed during roasting of the oilseeds. Oil consumption, especially of oils obtained after roasting of the seeds, was a major dietary source of the β -carbolines norharman and harman. Under existing oil risk factors, this investigation contributes to the unprecedented and essential information for dietary assessments associated with oil consumption.