[食用红色素102中所含副焦油染料的结构分析]

[Structural analysis of subsidiary tar dyes contained in Food red No. 102].

作者信息

Goda Mami, Horikawa Manabu, Iwashita Takashi, Sawada Motomitsu, Tsukazaki Daisuke, Tachibana Tsuyoshi, Sugane Katsumi, Harada Masami

机构信息

Safety Science Institute, Quality Assurance Division, Suntory Business Expert Limited, Suntory Research Center, 1-1-1 Wakayamadai, Shimamoto-cho, Mishima-gun, Osaka 618-8503, Japan.

出版信息

Shokuhin Eiseigaku Zasshi. 2013;54(3):188-97. doi: 10.3358/shokueishi.54.188.

DOI:10.3358/shokueishi.54.188

PMID:23863363

Abstract

Three unknown colors (A1, A2 and A3) in Food red No. 102 (R102) were identified by LC-MS and NMR analysis. Red dye A1 was azo rubine (AZO), which is not designated as a coloring agent in Japan. Red dye A2 was a structural isomer of Fast Red E (FRE), which is also not designated as a coloring agent in Japan. Red dye A3 was predicted to be an overreaction product of R102, possessing the R102 structural framework. Furthermore, AZO, which was assumed to have been produced by dimerization of a diazonium salt used as a synthetic intermediate of R102, was also identified in Food red No. 2 (R2).

摘要

通过液相色谱-质谱联用（LC-MS）和核磁共振（NMR）分析，鉴定出食用红色102号（R102）中的三种未知颜色（A1、A2和A3）。红色染料A1是偶氮玉红（AZO），在日本未被指定为着色剂。红色染料A2是坚牢红E（FRE）的结构异构体，在日本也未被指定为着色剂。红色染料A3预计是R102的过度反应产物，具有R102的结构框架。此外，在食用红色2号（R2）中也鉴定出了偶氮玉红（AZO），它被认为是由用作R102合成中间体的重氮盐二聚化产生的。