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Occurrence of Biologically Inactive Corrinoid Compounds in Canned Edible Apple Snails (Escargots)
Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
Department of Nutrition, Junior College of Tokyo University of Agriculture, Setagayaku, Japan
Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
- 1 Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
- 2 Department of Nutrition, Junior College of Tokyo University of Agriculture, Setagayaku, Japan
- 3 Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
- 4 Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
- 5 Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
- 6 Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
Food and Nutrition Sciences·Volume 06 (2015)·Pages 1071–1077·Published 7 September 2015·DOI10.4236/fns.2015.612111
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Abstract
In this study, we characterized and quantified vitamin B 12 in canned apple snails, escargots, (boiled plain) using a microbiological assay based on Lactobacillus delbrueckii ATCC 7830. Vitamin B 12 contents of canned escargots (boiled plain) were varied from approximately 0.8 μg/100g weight to approximately 5.5 μg/100g weight (mean values, 2.2 μg/100g weight). We identified vitamin B 12 compounds from escargots using liquid chromatography-electrospray ionization/tandem mass spectrometry. We found that escargots contained true vitamin B 12 and two inactive corrinoids, which were identified as factor IIIm (or methoxymensimidazolyl cyanocobamide), and factor S (or 2-methylmercaptoadenyl cyanocobamide). These results indicate that canned escargots (boiled plain) are not good sources of vitamin B 12 for humans.
KeywordsApple SnailsEscargotsCanned ProductsFactor SFactor IIImVitamin B<sub>12</sub>
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