Biologically available phosphorus supports plant growth but can also cause environmental contamination. Sequential extraction methods, such as Hedley fractionation, are the most widely used to assess from solids. However, methods exhibit numerous deficiencies. The USEPA Leaching Environmental Assessment Framework (LEAF) is a tiered system developed evaluate releases of Potentially Toxic Element...

For the transition towards greener biorefineries with reduced waste, valorization of lignin to drop-in chemicals instead their combustion for energy purposes is a key issue future processes. In this context, should be extracted from lignocellulosic biomass (LCB) and fragmented into smaller units, followed by catalytic funneling fine chemicals. review, we report on classical approaches LCB: ther...

Solvent fractionation of high oleic-high stearic (HOHS) sunflower oil was studied to determine the best solvent to use (hexane or acetone) in terms of the operational parameters and properties of the final stearins. Acetone fractionation on two types of HOHS sunflower oils (N17 and N20) was carried out at temperatures from 5 to 10 °C using micelles with different oil/solvent ratios. Acetone was...

the bioavailability of trace metals, their biological uptake and ecotoxiccological effect on soil biota can be better understood in terms of their chemical fractionation. the present study examined the mobility and availability of cd, cu, ni, pb and zn in sewage water – irrigated soils using sequential extraction technique as a basis for predicting metal uptake by plants. the residual fraction ...

background: increasing the complexity in modern radiotherapy techniques have increased the delivery time lowering consequently the treatment efficacy. through simulating the delivery time delay encountered in such techniques, its’ effect on two cancer cell lines and the compensating doses given to prevent such effect was investigated. materials and methods: f10b16 and 4t1 cancer cell lines were...