Document Detail


Characterization and bioavailability of vitamin B12-compounds from edible algae.
MedLine Citation:
PMID:  12656203     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Substantial amounts of vitamin B12 were found in some edible algae (green and purple lavers) and algal health food (chlorella and spirulina tablets) using the Lactobacillus delbrueckii subsp. lactis ATCC7830 microbiological assay method. Corrinoid-compounds were purified and characterized from these algae to clarify the chemical properties and bioavailability of the algal vitamin B12. True vitamin B12 is the predominate cobamide of green and purple lavers and chlorella tablets. Feeding the purple laver to vitamin B12-deficient rats significantly improved the vitamin B12 status. The results suggest that algal vitamin B12 is a bioavailable source for mammals. Pseudovitamin B12 (an inactive corrinoid) predominated in the spirulina tablets, which are not suitable for use as a vitamin B12 source, especially for vegetarians. algal health food, bioavailability, cobalamin, edible algae, vitamin B12
Authors:
Fumio Watanabe; Shigeo Takenaka; Hiromi Kittaka-Katsura; Shuhei Ebara; Emi Miyamoto
Related Documents :
7416663 - Evaluation of the daily amount of ascorbic acid supplied by food in france.
19871413 - The comparative effects of vitamin b(1) deficiency and restriction of food intake on th...
10667923 - Fungal biomass in saltmarsh grass blades at two contaminated sites.
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of nutritional science and vitaminology     Volume:  48     ISSN:  0301-4800     ISO Abbreviation:  J. Nutr. Sci. Vitaminol.     Publication Date:  2002 Oct 
Date Detail:
Created Date:  2003-03-26     Completed Date:  2003-07-16     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  0402640     Medline TA:  J Nutr Sci Vitaminol (Tokyo)     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  325-31     Citation Subset:  IM    
Affiliation:
Department of Health Science, Kochi Women's University, Kochi 780-8515, Japan. watanabe@cc.kochi-wu.ac.jp
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Algae / metabolism*
Animals
Biological Availability
Humans
Rats
Vitamin B 12 / isolation & purification*,  pharmacokinetics*
Vitamin B 12 Deficiency / diet therapy*
Chemical
Reg. No./Substance:
68-19-9/Vitamin B 12

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Disillusionment and devaluation in Winnicott's analysis of Masud Khan.
Next Document:  Inhibitory effect of delta-tocotrienol, a HMG CoA reductase inhibitor, on monocyte-endothelial cell ...