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The bioavailability of the pyridoxal (PL), pyridoxine (PN), and pyridoxamine (PM) forms of vitamin B is different, considering that their bioaccessibility in baby foods is important for infant and young children's nutrition. The aim of this study was to determine and evaluate the bioaccessibility of the PL, PN, and PM forms of vitamin B in cereal-based baby foods an in vitro digestive system. In this study, the PL, PN, and PM forms of vitamin B were determined using HPLC in 13 cereal-based baby foods. The average bioaccessibility of the PL, PN, and PM forms in gastric pH 1.5 were 53%, 76%, and 50%, respectively. When the gastric pH was 4, the average bioaccessibility of PL, PN, and PM were 38%, 67%, and 36%, respectively. As observed in this study, the bioaccessibility of the PL, PN, and PM forms of vitamin B in baby foods is lower in both gastric pHs.
This article was published in the following journal.
Name: Food chemistry
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VITAMIN B 6 refers to several PICOLINES (especially PYRIDOXINE; PYRIDOXAL; & PYRIDOXAMINE) that are efficiently converted by the body to PYRIDOXAL PHOSPHATE which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, and aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into PYRIDOXAMINE phosphate. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990). Most of vitamin B6 is eventually degraded to PYRIDOXIC ACID and excreted in the urine.
An enzyme that catalyzes reversibly the phosphorylation of pyridoxal in the presence of ATP with the formation of pyridoxal 5-phosphate and ADP. Pyridoxine, pyridoxamine and various derivatives can also act as acceptors. EC 18.104.22.168.
The catabolic product of most of VITAMIN B 6; (PYRIDOXINE; PYRIDOXAL; and PYRIDOXAMINE) which is excreted in the urine.
This is the active form of VITAMIN B 6 serving as a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into pyridoxamine phosphate (PYRIDOXAMINE).
The 4-aminomethyl form of VITAMIN B 6. During transamination of amino acids, PYRIDOXAL PHOSPHATE is transiently converted into pyridoxamine phosphate.
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