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Biosci Biotechnol Biochem. 2000 Dec;64(12):2712-5.

Characterization of a vitamin B12 compound in the edible purple laver, Porphyra yezoensis.

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  • 1Department of Health Science, Kochi Women's University, Japan.


The edible purple laver, Porphyra yezoensis, contained 51.49+/-1.51 microg of vitamin B12 compounds per 100 g dry weight of the laver (mean +/- SEM, n = 4). A vitamin B12 compound was purified from the lyophilized purple laver and partially characterized. The silica gel 60 TLC and reversed-phase HPLC patterns of the purified pink-colored compound were identical to those of authentic vitamin B12, but not to those of vitamin B12 analogues inactive for humans.

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