scholarly journals 4-O-(1-carboxyethyl)-d-galactose. A new acidic sugar from the extracellular polysaccharide produced by Butyrivibrio fibrisolvens strain 49

1988 ◽  
Vol 256 (3) ◽  
pp. 769-773 ◽  
Author(s):  
R J Stack ◽  
T M Stein ◽  
R D Plattner
Keyword(s):  
Extracellular Polysaccharide ◽  
Chemical Degradation ◽  
Butyrivibrio Fibrisolvens ◽  
Degradation Studies

The structure of a new acidic sugar from the extracellular polysaccharide of Butyrivibrio fibrisolvens strain 49 was determined as 4-O-(1-carboxyethyl)-D-galactose on the basis of 13C-n.m.r. and 1H-n.m.r. spectroscopy, m.s. and chemical degradation studies.

scholarly journals 4-O-(1-carboxyethyl)-l-rhamnose, a second unique acidic sugar found in an extracellular polysaccharide from Butyrivibrio fibrisolvens strain 49

1990 ◽  
Vol 268 (2) ◽  
pp. 281-285 ◽  
Author(s):  
R J Stack ◽  
D Weisleder
Keyword(s):  
Chemical Ionization ◽  
Extracellular Polysaccharide ◽  
Spectroscopic Studies ◽  
Chemical Degradation ◽  
Ionization Mass ◽  
Unknown Compound ◽  
Butyrivibrio Fibrisolvens ◽  
Neutral Sugars ◽  
Acidic Component ◽  
Unknown Structure

Butyrivibrio fibrisolvens strain 49 excretes a polysaccharide that contains D-glucose, D-galactose, 4-O-(1-carboxyethyl)-D-galactose, and an acidic component of previously unknown structure. We report here the identity of the unknown as 4-O-(1-carboxyethyl)-L-rhamnose. The structure of this previously unknown compound was deduced from (1) comprehensive electron-impact and chemical-ionization mass-spectroscopic studies of differentially labelled derivatives prepared from the unknown, (2) 13C-n.m.r. and 1H-n.m.r. studies of purified neutral sugars derived from the unknown and (3) chemical degradation experiments.

Chemical Degradation Studies on a Series of Dithiophosphinic Acids

2014 ◽  
Vol 53 (9) ◽  
pp. 3606-3611 ◽  
Author(s):  
Melissa E. Freiderich ◽  
Dean R. Peterman ◽  
John R. Klaehn ◽  
Philippe Marc ◽  
Lætitia H. Delmau
Keyword(s):  
Chemical Degradation ◽  
Dithiophosphinic Acids ◽  
Degradation Studies

Structural studies of the extracellular polysaccharide from Butyrivibrio fibrisolvens strain X6C61

1993 ◽  
Vol 246 (1) ◽  
pp. 291-301 ◽  
Author(s):  
Mats Anderson ◽  
Sanjaya Ratnayake ◽  
Lennart Kenne ◽  
Linda Ericsson ◽  
Robert J. Stack
Keyword(s):  
Extracellular Polysaccharide ◽  
Structural Studies ◽  
Butyrivibrio Fibrisolvens

Catecholate Siderophores from Chryseomonas luteola

1996 ◽  
Vol 51 (5-6) ◽  
pp. 281-285 ◽  
Author(s):  
M. Adolphs ◽  
K. Taraz ◽  
H. Budzikiewicz
Keyword(s):  
Culture Medium ◽  
2D Nmr ◽  
Chemical Degradation ◽  
Spectroscopic Methods ◽  
Iron Deficient ◽  
Nmr Techniques ◽  
Degradation Studies ◽  
Chryseomonas Luteola

Abstract Two catecholate siderophores (chrysobactin and chryseomonin) were isolated from an iron-deficient culture medium of Chryseomonas luteola. Their structures were elucidated by chemical degradation studies and spectroscopic methods, especially 2D-NMR techniques, and confirmed by synthesis. Chryseomonin constitutes a novel type of catecholate siderophore.

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