Abstract: The present invention enables isomerization process flows at lower pH, lower temperature, and in the presence of certain inhibiting compounds by using the xylose isomerase enzyme from the microorganism Fulvimarina pelagi. The xylose isomerase from this marine bacterium not only is very active at the fermentation pH and temperature, it is also tolerant of xylitol and calcium in the amounts generated in biomass fermentation conditions. For the HFCS application, the xylose isomerase from Fulvimarina pelagi is pH compatible with the process and is tolerant of calcium in the amounts found in the HFCS process. The temperature optimum is similar to commercially available amylase/gluco-amylase products.

Abstract: A polypropylene composition and a method to prepare the composition. The method includes the mixing and extrusion of an isotactic polypropylene, at least one impact modifying polymer, at least one primary co-agent that is a monofunctional monomer, at least one secondary co-agent which is a multifunctional monomer, oligomer, or polymer, and a radical initiator. The composition may be prepared in an extruder. The resulting composition has improved impact strength properties as compared to isotactic polypropylene and isotactic impact modifying polymer blends. The resulting composition may be used in a variety of forms such as extrusions, injection or blow-molded products, films, non-woven fabrics, or thermoformed products.