Search results for "Sorbi"

Chronic Therapy with Isosorbide-5-Mononitrate Causes Endothelial Dysfunction and Oxidative Stress – Improvement by Endothelin-Receptor Blocker (Bosen…

2012

Effects of the silencing of sorbitol dehydrogenase on sugar partitioning in vegetative sinks in apple

2011

Trienediolates of hexadienoic acids in synthesis. synthesis of retinoic and nor-retinoic acids.

1993

Abstract Double deprotonation of either (E,E)-3-methyl-2,4-hexadienoic acid 2, or 4,6-dimethyldihydro-2-pyrone 3 generates apparently the same lithium trienediolate, which affords ω-hydroxy acids 9 on reaction with ketones 7. Hydroxy acids 9 are easily dehydrated to octatrienoic acids 5, which are structurally related to retinoic acid. Similarly, sorbic acid 1 leads to nor-retinoic acid analogs 6.

Responses to salt stress in the halophyte Plantago crassifolia (Plantaginaceae)

2004

Abstract General responses to salt stress have been investigated in the halophyte Plantago crassifolia. Seed germination was strongly inhibited by NaCl, although seed viability and germination capacity were not affected by salt pre-treatments. A concentration-dependent inhibition of plant growth was observed in the presence of NaCl, which was accompanied by the accumulation of Na+ ions in the leaves, as determined by cation exchange HPLC. A 20-fold increase of proline content in leaves was observed when plants were treated with 500 m m NaCl, suggesting a protective role against high salinity stress for this amino acid, whose possible mechanism of action is discussed.

The effect of osmo-induced stress on product formation by Zymomonas mobilis on sucrose

2000

The intensification of biosynthesis of fructooligosaccharides in the presence of high salt concentrations was observed during sucrose (10%) fermentation by Zymomonas mobilis 113S. A 0.6 M NaCl concentration led to an increase of oligosaccharide productivity by 3.5-fold. Sorbitol formation was increased in the presence of 0.16 M NaCl and was inhibited at highest salt concentrations. In a medium with high (65%, w/w) sucrose content the salts gave inhibitory effects on fructooligosaccharide production by lyophilised Z. mobilis cells. Influence of salts on gluconic acid and sorbitol formation under these conditions was studied. The ratio of oligosaccharides and gluconic acid productivity (Qolig…

Polyenolates of unsaturated carboxylic acids in synthesis. A straightforward synthesis of retinoic acids.

1990

Abstract Retinoic acids are prepared in a two step procedure by addition of lithium trienediolates of sorbic acid and 3-methyl-sorbic acid to β-ionone.

ChemInform Abstract: Trienediolates of Hexadienoic Acids in Synthesis. Synthesis of Retinoic and nor-Retinoic Acids.

2010

Abstract Double deprotonation of either (E,E)-3-methyl-2,4-hexadienoic acid 2, or 4,6-dimethyldihydro-2-pyrone 3 generates apparently the same lithium trienediolate, which affords ω-hydroxy acids 9 on reaction with ketones 7. Hydroxy acids 9 are easily dehydrated to octatrienoic acids 5, which are structurally related to retinoic acid. Similarly, sorbic acid 1 leads to nor-retinoic acid analogs 6.

Lactatbildung aus Zuckern und Zuckeralkoholen in Erythrocyten

1965

Erythrocyten konnen Lactat bilden aus Glucose, Fructose, Sorbit, Xylit und Ribit. Mannit wird nicht umgesetzt. Die Kombinationen Xylit + Glucose, Xylit + Fructose und Sorbit + Glucose ergeben additive Lactatbildung. Bei den Kombinationen Xylit + Sorbit, Xylit + Ribit und Glucose + Fructose addiert sich die Lactatbildung nicht. Uber Konsequenzen dieser Befunde fur die parenterale Therapie wird diskutiert.

Photoassimilate Regulation of Sorbitol and Sucrose Metabolism in Peach Fruit

2005

Along with sucrose, sorbitol represents the major photosynthetic product and the main form of translocated carbon in peach. The objective of the present study was to determine whether in peach fruit, sorbitol and sucrose enzyme activities are source-regulated, and more specifically modulated by sorbitol or sucrose availability. In two separate trials, peach fruit relative growth rate (RGR), enzyme activities, and carbohydrates were measured 1) at cell division stage before and after girdling of the shoot subtending the fruit; and 2) on 14 shoots with different leaf to fruit ratio (L:F) at cell division and cell expansion stages. Fruit RGR and sorbitol dehydrogenase (SDH) activity were signi…

Interaction Between Osmotic and Hydrostatic Pressure in Yeast Inactivation

1999

The protective effect of an osmotic perturbation on high-pressure inactivation has been investigated using a yeast strain:Saccharomyces cerevisiae. Osmotic shocks have been carried out with binary medium (glycerol/sorbitol and water) with or without glucose. Variations of osmotic level, osmotic shift kinetics and time between osmotic and hydrostatic treatment (350 MPa/10 min) have allowed the characterization of cell baroprotection. Two different cumulative baroprotection effects have been distinguished: one conferred by the solute on biological structures and the other related to the osmotic stress, cell volume variations and stress metabolism response (HSP, trehalose). These experiments h…