Science of Cookery
Online ISSN : 2186-5795
Print ISSN : 0910-5360
ISSN-L : 0910-5360
Determination of Nitrate and Nitrite in Turnips by Ion-chromatography (part 1)
Mitsuyo IshizukaRitsuko Morita
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1988 Volume 21 Issue 1 Pages 79-81

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Abstract
The content of nitrate and nitrite in Shogoin turnip of “Kaburazushi” was analyzed by ionchromatography.
1. The content of nitrate was the highest at the first week of salting (417.9 ppm), and was the lowest after cured with Koji for 2 weeks (178.3 ppm).
2. The content of nitrite was the highest in turnip cured with Koji for one week (222 ppm), and the the lowest after cured for three weeks (1.2 ppm).
3. The pH of “Kaburazushi” was gradually lowered from 6.0 to 3.8.
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© The Japan Society Cookery Science
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