Sclerotinia sclerotiorum D-E7 was studied to determine the impact of nutritional supplements and monosaccharides on growth, oxalate accumulation, and culture pH in broth media (initial pH c. 5). Cultures with 0.1% nutritional supplement (tryptone, yeast extract, or soytone) yielded minimal growth, 2-3 mM oxalate, and a final culture pH of 4.2-4.8. In contrast, cultures with 0.1% nutritional sup...

BACKGROUND Urinary oxalate excretion is an important contributor to calcium oxalate stone formation. Methods of reducing oxalate excretion are not wholly satisfactory, and no controlled trials using them have been performed to prevent stone recurrence. Some lactic acid bacteria can degrade oxalate in vitro. This study sought to reduce urinary oxalate excretion in calcium stone formers with idio...

The microbiota inhabiting the mammalian gut is a functional organ that provides a number of services for the host. One factor that may regulate the composition and function of gut microbial communities is dietary toxins. Oxalate is a toxic plant secondary compound (PSC) produced in all major taxa of vascular plants and is consumed by a variety of animals. The mammalian herbivore Neotoma albigul...

The interaction of reagent grade strontium sulphate and celestine concentrate with aqueous solutions of oxalic acid, sodium oxalate and ammonium oxalate for the production of strontium carbonate were investigated for different oxalate compound:SrSO4 mole ratios and reaction times using x-ray diffraction analysis and dissolution tests. Under the same experimental conditions, it was found that aq...

Abstract THIS paper describes laboratory studies that investigated the solubility product of calcium oxalate in the presence of water and sucrose at different temperatures, pH, and sucrose concentrations. The products obtained from these precipitation studies were examined by X-ray powder diffraction and scanning electron microscopy. A correlation was derived which states that the solubility pr...

This new reagent kit for the quantitative measurement of oxalate in urine is a modification of an earlier Sigma oxalate assay procedure (procedure no. 590), a coupled enzyme assay involving oxalate oxidase and horseradish peroxidase. The new analytical procedure includes methods for processing urine specimens to eliminate interference with oxalate color development at 590 nm by ascorbic acid, d...

Since Bhat and Barker (1948) reviewed the existing literature and reported on the isolation and characteristics of an oxalate-decomposing Vibrio, only two attempts appear to have been made to study the problem of oxalate decomposition by microorganisms. One of the studied reported (Janota, 1950) relates to the utilization of oxalate by Psudomonas extorquens Basalik, whereas the other by Muiller...

Photodegradation is a key process impacting the lifetime of oxalate in atmosphere, but few studies investigated this field due to complex mixing and sources oxalate. Oxalate-containing particles were measured via single-particle aerosol mass spectrometry at coastal suburban sites Qingdao, city North China summer 2016. The state influence different ambient conditions on source photodegradation i...

Secondary hyperoxaluria is due either to increased intestinal oxalate absorption or to excessive dietary oxalate intake. Certain intestinal diseases like short bowel syndrome, chronic inflammatory bowel disease or cystic fibrosis and other malabsorption syndromes are known to increase the risk of secondary hyperoxaluria. Although the urinary oxalate excretion is usually lower than in primary hy...