Attempt to Calculate the Efficiency of Methylation Using 1H-NMR for Analyzing Brominated Vegetable Oil

Autor:	Jun'ichi Nakajima, Asamoe Ogawa, Narue Sakamaki, Keiko Iwakoshi, Chigusa Kobayashi, Natsumi Takahashi
Rok vydání:	2021
Předmět:	chemistry.chemical_classification Peak area food.ingredient Chromatography Absolute quantification Fatty acid General Medicine Methylation Brominated vegetable oil chemistry.chemical_compound food chemistry Methine group Proton NMR Methyl group
Zdroj:	Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi). 62:51-55
ISSN:	1882-1006 0015-6426
Popis:	We studied the efficiency of methylation for analyzing brominated vegetable oil (BVO). In this report, we investigated whether 1H-NMR is an applicable method for assessing the efficiency of methylation to analyze BVO. 1H-NMR sufficiently calculated the efficiency of methylation using each integral and the numbers of protons derived from the methyl group, which is characteristic in products, and the methine group, which is characteristic in unreacted substances. Additionally, the efficiency of methylation calculated via 1H-NMR was in good agreement with changes in the peak area of BVO fatty acid methyl esters (BVOFAMEs) after various heating times obtained from GC-FID analysis. Therefore, 1H-NMR is applicable for calculating the efficiency of methylation to analyze BVO.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::81bc0d9eca425293bd339ee22a772cb1 https://doi.org/10.3358/shokueishi.62.51 Zobrazit plný text záznamu