Characterization of Vitamin B 12 Compounds in Fermented Poultry Manure Fertilizers

Hiromi Katsura, Kyohei Koseki, Tomohiro Bito, Shigeo Takenaka and Fumio Watanabe
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Hiromi Katsura: Department of Food and Nutrition, Kyoto Women’s University, Kyoto 605-8501, Japan
Kyohei Koseki: Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan
Tomohiro Bito: Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan
Shigeo Takenaka: Department of Clinical Nutrition, Graduate School of Comprehensive Rehabilitation, Osaka Prefecture University, Osaka 583-8555, Japan
Fumio Watanabe: Division of Applied Bioresources Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan

Agriculture, 2021, vol. 11, issue 7, 1-8

Abstract: (1) Background: Currently, no data are available on the vitamin B 12 content of an organic fertilizer product, viz. fermented poultry manure, or whether the organic fertilizer product contains vitamin B 12 or inactive corrinoids (or both). (2) Methods: This study conducted a microbiological assay to determine the vitamin B 12 content of various commercially available fermented poultry manure fertilizer products. (3) Results: The results varied from 1.4 μg to approximately 20 μg per 100 g of dry weight. In the bioautography analysis, selected products had two positive spots with identical R f values of vitamin B 12 and pseudovitamin B 12. High-performance liquid chromatography and liquid chromatography/electrospray ionization−mass spectrometry analyses of the selected products indicated that these fertilizers primarily contained vitamin B 12 . They also contained minor inactive cobamides such as pseudovitamin B 12 , 2-methyladenyl cobamide, and 2-methylmercaptoadenyl cobamide. (4) Conclusions: These results suggested that edible plants would enrich vitamin B 12 using fermented poultry manure organic fertilizer products.

Keywords: cobalamin; organic fertilizers; fermented poultry manure products; inactive cobamides; vitamin B 12 (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
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