Article pubs.acs.org/JAFC
Characterization and Quantitation of Vitamin B12 Compounds in Various Chlorella Supplements Tomohiro Bito,† Mariko Bito,† Yusuke Asai,† Shigeo Takenaka,§ Yukinori Yabuta,† Kazunori Tago,† Masato Ohnishi,# Toru Mizoguchi,# and Fumio Watanabe*,† †
Faculty of Agriculture, School of Agricultural, Biological, and Environmental Sciences, Tottori University, Tottori 680-8553 Japan Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531 Japan # Sun Chlorella Corporation, Kyoto 600-8177 Japan §
S Supporting Information *
ABSTRACT: Vitamin B12 was determined and characterized in 19 dried Chlorella health supplements. Vitamin contents of dried Chlorella cells varied from 100 μg of B12/100 g dry weight), A, B, C, G, H, I, J, and K; moderate B12 group (10−100 μg of B12/100 g dry weight), D, F, L, M, N, O, and R; and low B12 group (
