Thermal behavior of inosine 5′-monophosphate in acidic form and as alkali and alkaline earth salts

Add time:07/21/2019    Source:sciencedirect.com

Inosine 5′-monophosphate in acidic form and its lithium, potassium, magnesium, calcium, strontium and barium were prepared from the sodium salt, characterized by elemental analysis and Fourier transform infrared spectroscopy and submitted to thermogravimetry (TG), differential thermal analysis (DTA), differential scanning calorimetry (DSC) and thermogravimetry coupled to infrared spectroscopy (TG-FTIR) of the volatile products evolved during heating. All the salts were hydrated containing from 4 to 7.5 H2O. After dehydration these salts decomposed releasing the nitrogenous base followed by the ribose group, and producing pyrophosphates as final residue. Evolved Gas Analysis (EGA) reveled the release of water, isocyanic acid and hydrocyanic acid during decomposition of the organic moiety. It was observed only water loss up to 200 °C. At temperatures above 200 °C, the nucleotides were unstable and decomposed, implying that foods containing those additives should be processed below this temperature. Finally, a general mechanism for the decomposition of the inosinates was proposed.

We also recommend Trading Suppliers and Manufacturers of Phosphoric acid, disodium salt, hydrate (cas 10140-65-5). Pls Click Website Link as below: cas 10140-65-5 suppliers

Prev:Standard enthalpy of formation of disodium hydrogen phosphate hexahydrate and sodium diphosphate
Next:Effect of silica on the thermal behaviour and ionic conductivity of mixed salt solid acid composites)