Xylulose

02/13/2012 - "The reaction profile revealed the formation of xylulose as an intermediate en route to the dehydration product (furfural). "
01/01/2022 - "Density functional theory study on the initial reactions of d-Xylose and d-Xylulose dehydration to furfural."
02/22/2019 - "Combining experiments with theoretical modeling, we reveal that [Y(OH)2(H2O)2]+ is the possible catalytically active species, enabling the unconventional cleavage of C3-C4 in xylulose and the subsequent dehydration of glyceraldehyde to pyruvaldehyde (PRA). "
02/13/2012 - "The multifunctional capacity of AlCl(3)·6H(2)O (hemicellulose hydrolysis, xylose isomerization, and xylulose dehydration) in combination with its ease of recyclability make it an attractive candidate/catalyst for the selective synthesis of furfural from various biomass feedstocks."
10/23/2017 - "Mechanistic studies suggested that the xylan-to-furfural conversion proceeded mainly through a hydrolysis-isomerization-dehydration pathway and the hexa-coordinated Lewis acidic [Al(OH)2 (aq)]+ species were the active sites for xylose-xylulose isomerization. "

02/01/2015 - "Its role in the metabolism of L-xylulose has been known since 1970, when essential pentosuria was found to be associated with DCXR deficiency. "
01/01/1985 - "A new assay of red cell L-xylulose reductase activity has facilitated the identification of carriers of the essential pentosuria allele at both family and population levels. "
01/01/1985 - "Only one of the two main L-xylulose reductases present in human tissue is deficient in individuals with essential pentosuria (Lane, 1985). "
12/01/1960 - "Essential pentosuria and the glucuronate-xylulose pathway."
11/08/2011 - "Pentosuria, which affects almost exclusively individuals of Ashkenazi Jewish ancestry, is characterized by high levels of the pentose sugar L-xylulose in blood and urine and deficiency of the enzyme L-xylulose reductase. "

04/01/2011 - "A∼71% conversion and a productivity of 10.7 g h(-1)l(-1) were achieved when the immobilized ReXDH was employed to catalyze the biotransformation of xylitol to L-xylulose, a sugar that has been used in medicine and in the diagnosis of hepatitis. "
06/01/2021 - "L-Xylulose is a rare ketopentose which inhibits α-glucosidase and is an indicator of hepatitis or liver cirrhosis. "
03/01/1976 - "The urinary excretions of L-xylulose, xylitol and D-glucarate after the oral administration of glucuronolactone (5 g) were measured in normal healthy persons, patients with diabetes mellitus, acute hepatitis in recovery stage, chronic hepatitis and liver cirrhosis. "

05/01/1965 - "1. The effect of starvation on the synthesis of ascorbic acid and of xylulose from glucuronolactone and from gulonate has been studied with liver extracts from cats, rabbits, hamsters, mice and guinea pigs. "
05/01/1965 - "2. The formation of xylulose from gulonate and from gulonolactone is greatly enhanced during starvation, whereas it is decreased from glucuronolactone and from glucuronate. "

10/01/2019 - "Deoxy-D-xylulose 5-phosphate reductoisomerase (DXR) is an important target in this pathway and the most effective DXR inhibitor to date is fosmidomycin, which is used to treat malaria and, more recently, tuberculosis. "
06/01/2003 - "In malaria parasites, isoprenoids are synthesised by the mevalonate independent 1-deoxy- D-xylulose 5-phosphate (DOXP) pathway. "