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Watanabe, F., Katsura, H., Takenaka, S., Fujita, T., Abe, K., Tamura, Y., Nakatsuka, T. and Nakano, Y. (1999) Pseudovitamin B12 Is the Predominant Cobamide of an Algal Health Food, Spirulina Tablets. Journal of Agricultural and Food Chemistry, 47, 4736-4741.
http://dx.doi.org/10.1021/jf990541b

has been cited by the following article:

• TITLE: Occurrence of Biologically Inactive Corrinoid Compounds in Canned Edible Apple Snails (Escargots)

  AUTHORS: Fei Teng, Yuri Tanioka, Tomohiro Bito, Shigeo Takenaka, Yukinori Yabuta, Fumio Watanabe

  KEYWORDS: Apple Snails, Escargots, Canned Products, Factor S, Factor IIIm, Vitamin B12

  JOURNAL NAME: Food and Nutrition Sciences, Vol.6 No.12, September 7, 2015

  ABSTRACT: In this study, we characterized and quantified vitamin B12 in canned apple snails, escargots, (boiled plain) using a microbiological assay based on Lactobacillus delbrueckii ATCC 7830. Vitamin B12 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 B12 compounds from escargots using liquid chromatography-electrospray ionization/tandem mass spectrometry. We found that escargots contained true vitamin B12 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 B12 for humans.