Analysis of main pigments and other ingredients in lac color product

被引：7

作者：

Hirata, K ^{[1
]}

Uematsu, Y ^{[1
]}

Suzuki, K ^{[1
]}

Iida, K ^{[1
]}

Yasuda, K ^{[1
]}

Saito, K ^{[1
]}

机构：

[1] Tokyo Metropolitan Res Lab Publ Hlth, Shinjuku Ku, Tokyo 1690073, Japan

来源：

JOURNAL OF THE FOOD HYGIENIC SOCIETY OF JAPAN | 2001年 / 42卷 / 02期

关键词：

lac color product; laccaic acids; HPLC HPLC/PDA; electrospray ionization mass spectrometry;

D O I：

10.3358/shokueishi.42.109

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The contents of the main pigments and other ingredients in commercial lac color products were determined by HPLC using an RP-18 column with 0.1 mol/L citric acid buffer solution-methanol (16 : 5) as the mobile phase, and a photodiode array (PDA) detector set at 280 nm and 490 nm. The main pigments were confirmed by PDA and electrospray ionization mass spectrometry. Laccaic acids A, B, C and E were detected in all lac color products, and the ratio of content of laccaic acid A in all products was over 50%. The total contents of laccaic acids A, B and C in lac color food additive products and reagent products were 775 similar to 858, 797 and 779 g/kg, respectively. As for the contents of ingredients except pigments in commercial food additive products, the maximum moisture content was about 10%, and ether-soluble substances amounted to 0.5 similar to3.6%.

引用

页码：109 / 113

页数：5

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