Premium
INFLUENCE OF TEMPERATURE AND SOLAR RADIATION ON PERSISTENCE OF VITAMIN B 12 , THIAMINE, AND BIOTIN IN SEAWATER 1
Author(s) -
Carlucci A. F.,
Silbernagel S. B.,
McNally P. M.
Publication year - 1969
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1969.tb02618.x
Subject(s) - thiamine , seawater , sunlight , biology , biotin , vitamin , biochemistry , ecology , physics , astronomy
SUMMARY Ecologically important concentrations of vitamin B 12 and thiamine in charcoal‐treated, filter‐sterilized seawater stored in the dark at 5, 18, 28, and 37 C generally did not change over a 9‐week period, although there was some breakdown of B 12 at 37 C. Biotin activity under similar conditions generally increased, indicating its decomposition to more active products. Solutions kept at –20 C had unchanged vitamin activity. B 12 and biotin in seawater exposed to sunlight were rapidly destroyed. The course of thiamine destruction in sunlight indicated a breakdown to a stable, biologically active product(s) ).