Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Trends in Chromatography   Volumes    Volume 7 
Characterization of vitamin B12 compounds in biofertilizers containing purple photosynthetic bacteria
Tomohiro Bito, Noriharu Ohishi, Shigeo Takenaka, Yukinori Yabuta, Emi Miyamoto, Eiji Nishihara, Fumio Watanabe
Pages: 23 - 28
Number of pages: 6
Trends in Chromatography
Volume 7 

Copyright © 2012 Research Trends. All rights reserved

There is currently no data available on the vitamin B12 content of biofertilizers containing purple photosynthetic bacteria or whether these biofertilizers contain “true B12” or inactive corrinoid compounds (or both). Therefore, we tested the vitamin B12 content of three commercially available biofertilizers containing purple photosynthetic bacteria. No or traces of vitamin B12 were found in two of the biofertilizers (A and B) tested, while the third (C) contained a considerable amount (53.5 µg/L). To evaluate whether biofertilizer C actually contained vitamin B12 or other corrinoids inactive in humans, the extracted compounds were purified using an immunoaffinity column and then identified as vitamin B12 (main) and/or inactive corrinoids (minor, Factor III) using liquid chromatography electrospray ionization mass spectrometry (LC/ESI-MS/MS).
View Full Article  


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms