Saccharomyces cerevisiae

The rate of nickel sorption by immobilized spent yeast in chitosan beads was determined as a function of the adsorbent dosage, initial pH and initial nickel concentration as shown in Fig. 1, 2 and 3, respectively. The sorption rate was rapid at the beginning of the period. It was observed that the equilibrium uptake of nickel by immobilized spent yeast was occurred after 2 hours. Kinetic studies of adsorption To investigate the sorption mechanism, the constants of sorption were determined by…

3.1. Growth Kinetic of strain: The growth curve of strain in both of mediums is shown in Fig. 1 (Supplementary data). It was apparent that 2 hours after nucleation of culture, strain interred to logarithmic phase and continues for 10 h in MRS broth and 12 h in PPM medium. Sonication continued in logarithmic phase in 2 h intervals. 3.2. The effect of ultrasound on growth kinetic: The growth curves plotted for the two condition (with and without sonication) (Fig. 1), growth kinetic parameters…

Introduction Debates concerning the health effects of artificial sweeteners are relevant not only for scientists and dieticians, but also for diabetics and individuals who are trying to lose weight. According to the American Diabetes Association (2014), aspartame (Equal, NutraSweet); acesulfame potassium (Sunett, Sweet One); neotame; sucralose (Splenda); saccharin (Sweet ‘N Low, Sweet Twin, Sugar Twin); and advantame are six alternatives to natural sugar that are commonly added to foods and…

Introduction Evolution is the process in which organisms change from one generation to the next over a period of time. The Hardy-Weinberg equation is one of the most popular ways to determine if a certain trait within a population is changing. The Hardy-Weinberg equation provides a null-hypothesis to compare to the observation of the population. One can predict the outcome of the estimated amount of offspring in a population by using two alleles to determine which will be present in future…

4.2 RES as activator of sirtuins and other biological target structures There are several molecular activities discussed that should convey the health-promoting effects of RES. In one of the most important (if not the decisive one) study, it was shown that RES modulates the activity of the silent mating type information regulation 2 homolog 1 (SIRT1) (3). SIRT1 belongs to a protein family consisting of seven (SIRT1-SIRT7) individual members that are unique Nicotinamide adenine dinucleotide…

Experimental Design Aim 1: Determine the amino acid sensing specificity of folliculin. Since folliculin’s novel amino acid sensing function discovery, I plan to further understand whether FLCN specifically senses a certain amino acid and if this level of detection is enough to elicit an mTORC1 response. 1.1. Determine if folliculin’s novel molecular function in amino acid sensing is triggered by glutamine. mTORC1 activation by amino acids requires FLCN where its lysosomal residence during…

The D4 bacterial microbe was negative for the presence of capsule. The gram negative bacteria’s like Escherichia coli, Klebsiella pneumoniae, Serratia marcescens,and Saccharomyces cerevisiae had capsules .However, only one of the gram negative bacteria’s Proteus vulgaris had no capsule on its surface. Finally, an acid fast stain was conducted to the unknown bacterial and it showed negative results. In conclusion, the microscopic…

Coffactors Abstact Chemical reaction are a part of every ones life there no dening it this fact. But is there a way to increase these reations and make processed like reasperation and metablolism faster. That is exactly what cofactors are beleived to do, increasing the rate of reaction. In this experirment lactase, ONPG, EDTA, and phosphate buffer are used to determine wether or not cofactors really increase the rate of chemical reation. To measure the reaction a spectrometer will be used.…