Introduction Purpose The purpose of this lab is to study soil PH, soil salt concentration, osmosis and light. To identity potato weight change in sodium chloride. To determine the growth of plants scientist, farmer and business owners often work to determine the optimal conditions for their plants, which involves a variety of test and a large amount of trial and error over many years. I made a predication that the growing condition for red potato in this case is hypotonic. When the potato was placed in the 0.0m NaCl solution water diffused into the potato making it swell.
If the temperature, pH and enzyme concentration is kept constant then the rate of reaction will start to decrease as well as the hydrogen peroxide concentration. Aim: To investigate the effects of changing the concentration of the enzyme catalase that it has on the rate of breaking down the Hydrogen Peroxide solution. Dependant and Independent Variables: The Dependent Variables: Amount of time it takes when the bubbles start to rise till when they stop. The Independent Variable: Amount of Hydrogen Peroxide solution. The Controlled/ Fixed Variables are: • The amount of hydrogen peroxide inserted in each test tube.
Empirical models proposed to predict these properties at different temperatures (Nita et al., 2011). Rao and his group made a study to estimate the mathematical relationships between the kinematic viscosity, density, heating values and flash point among various biodiesel samples. (Rao et al., 2010) Thiago and his group studied the kinematic viscosity and presented an experiment to determine the kinematic viscosity behavior with shear rate and temperature of edible oilssuch as canola, sunflower, corn, soybean. They compared the curves obtained for the kinematic viscosity versus temperature with the curves obtained by modeling the kinematic viscosity dependency on temperature. (Thiago et al., 2013).
Upon its discovery, HbA1c was proposed as a useful biomarker for diabetes monitoring (Koenig et al., 1976a, Koenig et al., 1976b), and endogenously produced AGEs attracted further scientific attention, beyond food chemistry, from fields including medical biochemistry and pathology. At this point it is important to highlight that there are two sources of AGEs: the endogenously produced AGEs, a product of the reaction between proteins and sugars in the circulation, and exogenous AGEs, produced during cooking and absorbed in the small intestine (~10%
S.K.Mohan, T.Viruthagiri and C.Arunkumar Kinetic Studies on Microbial Production of Tannase from Redgram husk Abstract — Tannase (tannin acyl hydrolase, E.C.126.96.36.199) is an important hydrolysable enzyme with innumerable applications and industrial potential. In the present study, a kinetic model has been developed for the batch fermentation used for the production of tannase by A.flavus MTCC 3783. Maximum tannase activity of 143.30 U/ml was obtained at 96 hours under optimum operating conditions at 35oC, an initial pH of 5.5 and with an inducer tannic acid concentration of 3% (w/v) for a fermentation period of 120 hours. The biomass concentration reaches a maximum of 6.62 g/l at 96 hours and further there was no increase in biomass concentration
The purpose of this lab is understanding the use of the spectrophotometer and using the Beer’s Lambert Law (A=Ecl) in relation to the enzyme activity and how Polyphenol Oxidase and combine results in enzymatic browning and how different set of conditions like temperature, pH, or salt affect the result of the reactions. Polyphenol Oxidase is an enzyme that is commonly found in many plants and fungi and is responsible for enzymatic browning. For example, in potatoes it will not only cause a color or appearance of the product to change, but also their nutritional values (Ali and El-Gizawy et al, 2016). Over-exposing of PPO with the oxygen in the environment can cause elevated levels of enzymatic browning in fruits like apples (Mayer 2006.) It is very evident that this issue of enzymatic browning plays a huge role in the agricultural industry and in our food resources hence many studies have been conducted.
Chemical and electrochemical techniques were used in measuring the corrosion rate. Moreover, the adsorption behavior and the effect of temperature were also studied. 2. Experimental method 2.1. General procedure for synthesis of 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile.
METHODOLOGY Area of isolate For the isolate that can produce biosurfactant, we collected the sample from oil spilled area, from automobile workshop because the nature of the place will determine the type of microorganism. Sampling Sample of the soil was collected from the automobile workshop. The sample of the soil was taken to the laboratory for analysis via sterile polythene bag. At the time of sample collection, the temperature and pH of the soil sample was 30℃ and 7 respectively. Collection of bacteria from the sample and its isolation In 50ml of R2B broth, the soil sample of 5 gram inoculated and incubated at 25℃ for 72 hours.
4. What temperature should the plates be incubated at and why? [2 MARKS] Both the nutrient and chromogenic plates should be incubated at 37 degrees Celsius because this will mimic the temperature of the birthing pools where the sample is from as well as mimicking the temperature of the human body. 5. You use cUTI plates as the chromogenic media and find that some of the colonies have turned pink in colour.
Title Heat loss in air of an Antarctic marine mammal, the Weddell seal Jo-Ann Mellish, Allyson Hindle, John Skinner, Markus Horning Purpose The purpose of this study is to be able to determine the varying temperatures in the seal’s body surface. The seals range from their body mass as well as their environmental conditions. The variance of surface temperature from the body regions is also a main objective. Methods 35 Weddell seals ranging from different life history stages were tested (a total of four life history stages). First, biological factors that would impact thermoregulation were collected.