ascorbic-acid and galactaric-acid

ascorbic-acid has been researched along with galactaric-acid* in 2 studies

Other Studies

2 other study(ies) available for ascorbic-acid and galactaric-acid

Article	Year
AlIII ion complexes of saccharic acid and mucic acid: a solution and solid-state study. Chemistry (Weinheim an der Bergstrasse, Germany), 2004, Mar-05, Volume: 10, Issue:5 The Al(III)-binding abilities of two aldaric acids, D-saccharic acid and mucic acid (the neutral form is denoted as H(2)L), were studied in solution by means of pH potentiometric, (1)H and (13)C NMR, and ESI-MS techniques. The most probable conformations and isomeric binding modes of the complexes formed in solution were determined by density functional theory (DFT) calculations. A solid D-saccharic acid complex K(2)[[Al(LH(-2))(H(2)O)](2)].H(2)O was isolated and crystallographically characterised. The two alcoholic hydroxy groups alpha to the terminal COO(-) groups were found to take part in the coordination, but in different ways. One of them coordinates in a bridging mode. Detailed ESI-MS and NMR studies proved that the complex retains its structure in solution. However, depending on the ligand and the pH, such complexes may exist in two isomeric forms. DFT calculations on the ion [[Al(LH(-2))(H(2)O)](2)](2-) revealed that several orbitals participate in stabilizing the dimeric arrangement. Topics: Aluminum; Ascorbic Acid; Crystallography, X-Ray; Hydrogen-Ion Concentration; Magnetic Resonance Spectroscopy; Molecular Structure; Organometallic Compounds; Solutions; Spectrometry, Mass, Electrospray Ionization; Sugar Acids	2004
Utilization by yeasts of D-glucarate, galactarate, and L-tartarate is uncommon and occurs in strains of Cryptococcus and Trichosporon. Canadian journal of microbiology, 1990, Volume: 36, Issue:12 In 38 yeast genera tested, utilization of D-glucarate was uncommon, occurring with only 10 strains out of 373. The ability was prominent among Cryptococcus strains, with 8 out of 8 tested being positive, including the pathogen Cryptococcus neoformans. The ability was present also in Trichosporon where 2 out of the 4 strains tested were positive. There was a correlation between ability to utilize D-glucarate, galactarate, L-tartarate, and D-glucuronate. Use of L-ascorbate occurred in more genera than use of D-glucarate, but all strains that grew on D-glucarate grew on L-ascorbate. The utilization of certain hydroxylated carboxylates by strains, mainly found in two genera, is of interest in identifying the catabolic pathways involved, in taxonomic studies, and in developing rapid methods of yeast identification. Topics: Ascorbic Acid; Cryptococcus; Cryptococcus neoformans; Culture Media; Glucaric Acid; Sugar Acids; Tartrates; Trichosporon; Yeasts	1990

Article

Year

AlIII ion complexes of saccharic acid and mucic acid: a solution and solid-state study.

Chemistry (Weinheim an der Bergstrasse, Germany), 2004, Mar-05, Volume: 10, Issue:5

The Al(III)-binding abilities of two aldaric acids, D-saccharic acid and mucic acid (the neutral form is denoted as H(2)L), were studied in solution by means of pH potentiometric, (1)H and (13)C NMR, and ESI-MS techniques. The most probable conformations and isomeric binding modes of the complexes formed in solution were determined by density functional theory (DFT) calculations. A solid D-saccharic acid complex K(2)[[Al(LH(-2))(H(2)O)](2)].H(2)O was isolated and crystallographically characterised. The two alcoholic hydroxy groups alpha to the terminal COO(-) groups were found to take part in the coordination, but in different ways. One of them coordinates in a bridging mode. Detailed ESI-MS and NMR studies proved that the complex retains its structure in solution. However, depending on the ligand and the pH, such complexes may exist in two isomeric forms. DFT calculations on the ion [[Al(LH(-2))(H(2)O)](2)](2-) revealed that several orbitals participate in stabilizing the dimeric arrangement.

Topics: Aluminum; Ascorbic Acid; Crystallography, X-Ray; Hydrogen-Ion Concentration; Magnetic Resonance Spectroscopy; Molecular Structure; Organometallic Compounds; Solutions; Spectrometry, Mass, Electrospray Ionization; Sugar Acids

2004

Utilization by yeasts of D-glucarate, galactarate, and L-tartarate is uncommon and occurs in strains of Cryptococcus and Trichosporon.

Canadian journal of microbiology, 1990, Volume: 36, Issue:12

In 38 yeast genera tested, utilization of D-glucarate was uncommon, occurring with only 10 strains out of 373. The ability was prominent among Cryptococcus strains, with 8 out of 8 tested being positive, including the pathogen Cryptococcus neoformans. The ability was present also in Trichosporon where 2 out of the 4 strains tested were positive. There was a correlation between ability to utilize D-glucarate, galactarate, L-tartarate, and D-glucuronate. Use of L-ascorbate occurred in more genera than use of D-glucarate, but all strains that grew on D-glucarate grew on L-ascorbate. The utilization of certain hydroxylated carboxylates by strains, mainly found in two genera, is of interest in identifying the catabolic pathways involved, in taxonomic studies, and in developing rapid methods of yeast identification.

Topics: Ascorbic Acid; Cryptococcus; Cryptococcus neoformans; Culture Media; Glucaric Acid; Sugar Acids; Tartrates; Trichosporon; Yeasts

1990