In our work, Pseudomonas spp. strains 24, 30 and 109 produced high levels of soluble phosphate (> 1,000 μg.mL-1) (Table 2) and significantly increased plant growth (Table 2). Strain 24 (P. plecoglossicida) had significantly increased root length whereas strain 30 (Pseudomonas sp.) increased shoot dry weight and strain 109 displayed an increase in shoot and root dry weight (Table 3). However, strain 103 (P. putida) which produced only 83 μg.mL-1 of soluble phosphate, was the most plant growth-stimulating bacterium in NSS (Table
Specifically, this investigation analyses how the initial temperature effects the rate of Hydrogen Peroxide oxidising Potential Acid Sulfate Soil. Only when a rapid reaction took place, PASS has been oxidised using Redox theory with the presence of pyrite or other sulphides to react. The hypothesis that the rate of oxidation is correlates with the initial temperature of the solution is true, with the theory being supported that the higher temperatures result in increased reaction speed. This lab test was conducted over two different depths of PASS, with three trials of five temperatures for each of the two depths. The first and most obvious form of evidence lays within the averaged pH levels over time.
Ionic liquids can produce higher ionic strength in solution medium and it is a possible reason for decreasing of solubility in acidic medium whenever CVD is fully ionized. Similar pattern is observed in solubility studies of CVD and corresponding IL forms in HCl 0.1 M and 0.01 M. However, solubility was considerably improved in compared with HCl 0.1 M, 0.2 M). It could be related to the low concentration of chloride ion. The maximum solubility was observed in CVD because in this pH, it is fully ionized and ionic strength in compared with CVD is less than CVD’s ionic
3.1 Preliminary optimization studies 3.1.1. Effect of reaction time: Figure.3 represents the time progression for the enzymatic esterification of ethanol and hexanoic acid with 1:1 substrate ratio by Novozyme 435 (2 %) at 50 ˚C. It was observed that percentage conversion of ethyl hexanoate reached up to 73.6% in the initial 120 min. However, as the reaction proceeds further, a marginal change in conversion was observed after 120 min because of equilibrium of the reaction. This is attributed to the reversible nature of the esterification reaction.
Spread Ratio The magnitude of p-value indicates that linear terms of all the variables have significant effect at 5% level of significance (p <0.05) on cookie’s spread ratio. Further quadratic effect of fat content was significant effect at 5 % level of significance (p<0.05). The magnitude of β coefficients (Table 3) revealed that the linear term of fat (β= 0.24) and AF (β= 0.087) have positive effect; whereas the SMP (β= -0.037) has negative effect on cookie’s spread ratio, which indicates that with increase of fat content and AF in composite flour, there will be an increase in cookie’s spread ratio. The increase in cookie’s spread ratio with increase of fat content may be related to increased mobility in the system due to melting of fat during
In general, the unit consumes more acid than required (91 target spend strength vs. 89 technical target spend strength) because controlling the series acid flow is a manual operation (see Figure 4, pg.5). During the turnaround, instrumentation will be installed to better control acid spend strength to the lower target (see Figure 5,
This occurs because the sample vaporized into the gas phase and is placed into a capillary under controlled temperature and pressure. As the mobile phase and is placed into the capillary under controlled temperature and pressure. As the mobile phase is flowed through the capillary, more volatile compounds should elute first. Accordingly, the alcohol should elute last, preceded by the alkyl halide. For example, in part A the 1-chlorobutane eluted first because it has a lower boiling point of 78°C compare to the boiling point of 1-bromobutane of 101.4 to 102.9°C.
increase in Ca levels and hypersensitivity reaction.2,3 There are many classes of Diuretics such as loop diuretics, potassium sparing, thiazide, osmotic diuretics. They are classified according to mechanism of action, site of action, chemical class and effect on urine electrolytes. Each class vary widely in its efficacy.1,2 At the 16th century, calomel (mercurrous chloride) was used as diuretic, but its poor absorption from the GIT limited its use and was replaced by the organomerrcurials(chlormerodin) which was highly effective, but unfortunately its parenteral use and possibility of toxicity and tolerance limited their use and they are no longer used, so scientists searched for more safe and effective
If excess sodium bicarbonate increases the pH of the water, it shows that excess sodium bicarbonate increases the pH of the blood and if excess sodium bicarbonate decreases the pH of the water, it shows that excess sodium bicarbonate decreases the pH of the blood. 31. Add dry ice (solid CO2) to distilled water. 32. Measure pH of the solution containing distilled water and dry ice.
Fig. 6 (a) shows the effect of hydrogen peroxide increase on the MB removal at constant pH 3 and Fe3+ of 40 mg/L. The results show that the degradation rate of MB increases with an increase in initial H2O2 concentration from 100 to 400 mg/L, but in excess of about 400 mg/L; the H2O2 dose of 1000 mg/L, plot of the reaction rate curve is almost horizontal. This could be illustrated that the presence of H2O2 beyond the ratio with Fe3+ does not improve the MB degradation. According to Murry and Parson (2004) hydrogen
Thus knowing that the country has a high starch based diet, we would suggest that I would have a high amylase production. From my findings we notice that the R2 value is 0.886 (shown in Figure 1) which indicates that there is a strong correlation between concentration of salivary amylase and how much light is absorbed. This suggest that due to the large amount of salivary
The IR analysis indicated a distinctive peak at 1778.43 representing ketone, and another peak at 1226.73 representing ether. The peak at 1400-1600 was indicative of either a ring structure or an alkene group. The reactants were dissolved in xylene since they have more solubility compared to the product which undergoes crystallization. Thereafter the mixture was refluxed to maintain constancy in temperature and ensure mixing. Since xylene has a high boiling point of 140 °C, the reaction proceeded speedily.
As seen in the trend of both buffer, once the pH is lower than 3, the slope of dv/dpH increase drastically, showing the decreasing effects of the buffer. On the other hand, in the trend of both buffer on the right side of graph shows when NaOH is added, the change in pH is more drastic once past about pH 5. Although buffer 1 and buffer 2 shows a similar trend, the plot of buffer 1 is above the plot of buffer 2. The reason for this is that buffer 1 is made by an acid and base with an almost equal concentration. This makes buffer 1 a greater buffer compared to buffer 2.