Results 11 to 20 of about 38,311 (239)
Hemijska Industrija, 2009 The importance of vitamin B6 has been known since its discovery in the 1940's. Chemical tests, elestrometric titration determinations, and absorption spectrum studies showed that this vitamin exists in three major chemical forms: pyridoxine (an alcohol),
Vučijak Nevena Ž. +4 more
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Journal of Biological Chemistry, 1969 Abstract The effect of pH on the relative distribution of pyridoxal structures in aqueous solution was examined by fluorescence spectroscopy. The hemiacetal structure, which is the predominant species at neutral pH, exhibits a symmetrical emission band at 378 mµ and is characterized by a quantum yield of 0.08.
J E, Wampler, J E, Churchich
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Biosynthesis of food constituents: Vitamins. 2. Water-soluble vitamins: Part 1 - a review
Czech Journal of Food Sciences, 2007 This review article gives a survey of the generally accepted biosynthetic pathways that lead to water-soluble vitamins in microorganisms, plants and some animals.
Jan Velíšek, Karel Cejpek
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Transamination of α-keto acids catalyzed by pyridoxals
上海师范大学学报. 自然科学版, 2016 In this paper,we designed and synthesized a series of pyridoxals tagged with different functional groups.The pyridoxals exhibited high catalytic activity in transamination of α-keto acids to obtain various amino acids in good yields.This transamination ...
CHEN Jing, ZHAO Junyu, ZHAO Baoguo
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Pharmaceutics, 2023 Tumor metastasis is a major concern in cancer therapy. In this context, focal adhesion kinase (FAK) gene overexpression, which mediates cancer cell migration and invasion, has been reported in several human tumors and is considered a potential ...
Tilahun Ayane Debele +3 more
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Formation of a macrocycle from dichlorodimethylsilane and a pyridoxalimine Schiff base ligand
Acta Crystallographica Section E: Crystallographic Communications, 2021 The reaction of dichlorodimethylsilane with a polydentate Schiff base ligand derived from pyridoxal and 2-ethanolamine yielded the macrocyclic silicon compound (8E,22E)-4,4,12,18,18,26-hexamethyl-3,5,17,19-tetraoxa-8,13,22,27-tetraaza-4,18-disilatricyclo[
Uwe Böhme +2 more
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Scientific opinion on the tolerable upper intake level for vitamin B6
EFSA Journal, 2023 Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver a scientific opinion on the tolerable upper intake level (UL) for vitamin B6.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) +20 more
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SNZ3 Encodes a PLP Synthase Involved in Thiamine Synthesis in Saccharomyces cerevisiae
G3: Genes, Genomes, Genetics, 2019 Pyridoxal 5′-phosphate (the active form of vitamin B6) is a cofactor that is important for a broad number of biochemical reactions and is essential for all forms of life.
Michael D. Paxhia, Diana M. Downs
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Some Brief Notes on Theoretical and Experimental Investigations of Intramolecular Hydrogen Bonding
Molecules, 2016 A review of selected literature data related to intramolecular hydrogen bonding in ortho-hydroxyaryl Schiff bases, ortho-hydroxyaryl ketones, ortho-hydroxyaryl amides, proton sponges and ortho-hydroxyaryl Mannich bases is presented.
Lucjan Sobczyk +3 more
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Simultaneous Determination of Underivatized Vitamin B1 and B6 in Whole Blood by Reversed Phase Ultra High Performance Liquid Chromatography Tandem Mass Spectrometry. [PDF]
PLoS ONE, 2015 Vitamin B1 (thiamine-diphosphate) and B6 (pyridoxal-5'phosphate) are micronutrients. Analysis of these micronutrients is important to diagnose potential deficiency which often occurs in elderly people due to malnutrition, in severe alcoholism and in ...
Johan Puts +3 more
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