Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 64, Issue 12, Pages 2712-2715Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.64.2712
Keywords
vitamin B-12; methylcobalamin; purple laver; Porphyra yezoensis; intrinsic factor
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The edible purple lever, Porphyra yezoensis, contained 51.49+/-1.51 mug of vitamin Bit compounds per 100 g dry weight of the laver (mean +/- SEM, n = 4). A vitamin B-12 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 B-12, but not to those of vitamin B-12 analogues inactive for humans.
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