Characterization of vitamin B12 compounds from the brackish-water bivalve Corbicula japonica

In Lake Togo (Tottori prefecture, Japan), the vitamin B 12 content of the brackish-water bivalve Corbicula japonica remained high (17.3–22.5 μg/100 g wet weight of the edible portion) throughout the year, except during August and September. We evaluated whether the bivalve contained true vitamin B 1...

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Bibliographic Details
Published inFisheries science Vol. 79; no. 2; pp. 321 - 326
Main Authors Ishihara, Yukio, Ueta, Kazumi, Bito, Tomohiro, Takenaka, Shigeo, Yabuta, Yukinori, Watanabe, Fumio
Format Journal Article
LanguageEnglish
Published Japan Springer Japan 01.03.2013
Subjects
Biomedical and Life Sciences
Fish & Wildlife Biology & Management
Food Science
Freshwater & Marine Ecology
Life Sciences
Original Article
Vitamin B
Brackish-water bivalve
Corrinoid compound
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Summary:In Lake Togo (Tottori prefecture, Japan), the vitamin B 12 content of the brackish-water bivalve Corbicula japonica remained high (17.3–22.5 μg/100 g wet weight of the edible portion) throughout the year, except during August and September. We evaluated whether the bivalve contained true vitamin B 12 or other corrinoid compounds that are inactive in humans by purifying the compounds and identifying them using LC/ESI–MS/MS chromatograms. The results indicated that “true” vitamin B 12 predominated in the bivalve, although small amounts of inactive corrinoid compounds (pseudovitamin B 12 and three unidentified compounds) were also found.
ISSN:0919-9268
1444-2906
DOI:10.1007/s12562-013-0596-7