SERINE PHOSPHORIC ACID FROM DIISOPROPYLPHOSPHORYL CHYMOTRYPSIN

Serine phosphoric acid from diisopropylphosphoryl derivative of eel cholinesterase.

Diisopropyl fluorophosphate (DFP) is a highly specific inactivator of e&erases, such as cholinesterase and chymotrypsin (2), and combines irreversibly with these enzymes (3,4). In a previous report from this laboratory (5) we have shown that, when the reaction product of DFP and chymotrypsin, namely, diisopropylphosphoryl chymotrypsin, is partially hydrolyzed, serine phosphoric acid may be obta...

Magnetic Gels for Uranium Recovery from Wet Phosphoric Acid by

Incorporation of uranium recovery into wet phosphoric acid (WPA) processes can potentially supplement a significant portion of the world's uranium production and simultaneously benefit human health and environment by reducing radiological and toxic contamination of the phosphate fertilizer products. Liquid-liquid extraction as conventional uranium recovery methods applied in industrial suffers ...

Surfactant-Aided Phosphoric Acid Pretreatment to Enable Efficient Bioethanol Production from Glycyrrhiza Glabra Residue

Glycyrrhiza glabra residue (GGR) was efficiently subjected to concentrated phosphoric acid (PA) pretreatment with/without surfactant assistance, and promising results were obtained following separate enzymatic hydrolysis and fermentation (SHF) of the biomass. Pretreatment was carried out using 85 % PA either at 50 or 85 °C with 12.5 % solid loading for 30 min. In parallel experiments, ...

Role of Serine in Chymotrypsin Action. Conversion of the Active Serine to Dehydroalanine.

The Recovery of Uraniumfrom Phosphoric Acid

Commercialization of three processes (OPPA, DBPA-TOPO and OPAP) has shown that the DEPA-TOPO process offers the best technology available today for the recovery of uranium from wet-process phosphoric acid. Uranium recovery plants using this process have been successfully operated in the United States, Belgium, Canada and Taiwan. Operating experience from these plants has led to a significant re...