in view of the increase in saccharomyces cerevisiae mannan content, the culture condition for s.cerevisiae were optimized in this study. the influence of culture condition such as original ph, inoculum size, and temperature on mannan production were evaluated using response surface methodology. the mathematical model was established by the quadratic rotary combination design. with the order of ...

In this paper we present some preliminary Small Angle Neutron Scattering results about the influence of pH and temperature on the structure of macromolecular solutions. We have investigated aqueous solutions of lysozyme at concentrations of 0.05, 0.10 and 0.15 w/w, a t pH values of about 3, 5 , and 6.7, and in the temperature range of 10-50°C. At the lower values of the pH, well defined interac...

.he recent determination of the ocular temperature gradient indicated the necessity to define those ocular physiologic and metabolic functions, especially of the anterior segment of the eye, which are most temperature dependent. One such important function is that of pH or hydrogen ion activity of the anterior chamber aqueous humor. With the recent introduction of extremely stable pH meters as ...