The Fungal Amylase Experiment

Improved Essays
Results of the experiment for the fungal amylase activity were in support of previous research; similar to Serrano and Peralta’s (2015) study, optimum amylase activity was clearly indicated in the results. Denaturation was also clearly indicated with regards to fungal amylase.
According to the data gathered in our experiment, the optimum range for bacterial amylase activity appears to fall between 25° C and 55° C, with the lowest averages falling in the 55° C column in Table 2. The process of denaturation also appears to have begun around 85° C. However, these results were not supported by previous findings; Mishra and Behera’s (2008) study provided evidence for the optimum temperature of bacterial amylase occurring at 70° C, well above the
…show more content…
The amylase and starch may not have been mixed together properly at each time mark, which led to varied enzymatic activity and inconclusive or atypical results. Slight water residue was observed in the test tubes prior to use in the experiment, and may have contributed to the overall lack of enzyme activity (i.e. water may have diluted the enzymes). The iodine solution added to the spot plates just before the amylase-starch solution was added may have also contributed to the inconclusive results as it may have oxidized too quickly and the bond it should have formed with starch was not …show more content…
al’s (2015) study, with a clearly indicated optimal temperature range around 70° C or higher. However, the process of denaturation likely would not have been indicated by results due to the use of bacteria as opposed to fungal high-fiber/protein biomasses that denatured around 95° C in George et al.’s (2015) study. Serrano and Peralta’s (2015) study provided evidence that the conditions of an organism’s natural environment influence its enzymatic activity. Thus, it is likely that bacteria would typically have higher rates of enzyme activity present at higher temperatures as compared with other living organisms. If precautions were taken and the experiment was replicated, it is likely that the results would further support George et al. (2015) and Serrano and Peralta’s (2015) findings.
Although, it must be noted that the entirety of the experiment should be replicated because there is a possibility that the results of fungal amylase activity are--in addition to bacterial amylase activity--skewed as well. While repeating the experiment might not change how the results of fungal amylase activity support previous findings, the replication process undertaken with precautions would further ensure the validity of the

Related Documents

  • Great Essays

    Amylase Experiment

    • 1123 Words
    • 5 Pages

    The errors of the experiment are unknown and cannot be accurately stated. The possible improvements for the experiment could include that there are more intervals of temperature tested, pH levels could be tested, and the concentration of amylase put into the glucose…

    • 1123 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    its was higher at 8.5 3. State the optimum temperature for sucrase activity and describe how sucrase activity changes at lower and higher temperatures. Table 3: Effect of Sucrose Concentration on Sucrase Activity Optical Density 35 g/L 30 g/L 25 g/L 20 g/L 15 g/L 10 g/L 5 g/L 0 g/L 1 0.984 1.011 0.948 0.894 0.821 0.773 0.500 0.002 2 0.985 0.995 0.945 0.931 0.821 0.772 0.501 0.003 3 0.981 1.005 0.945 0.924 0.826 0.736 0.524 0.001 average 0.983 1.000 0.946 0.916 0.823 0.760 0.508 0.002 Laboratory Report/ Angela Collins/ Enzyme Activity/ Catherine Rice/ 07.09.2014/ Page [2] of…

    • 1040 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    The lowest one was hot temperature. This was because the enzyme was trying trying to move too fast and it was not able to react the right way because of the denatured…

    • 680 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    E. Coli Lab Report

    • 494 Words
    • 2 Pages

    coli is considered a mesophile, meaning it grows at moderate temperatures, between 20°C and 40°C, with its optimal growth temperature being 37°C (Piispanen, 2017, Fall Lecture). The results demonstrates that 37°C is the most optimal temperature for growth, as this plate had the highest number of colonies present. However, to support this statement of E. coli being a mesophile, there would had to have been growth on the plate incubated at 23°C. To clarify these findings further and investigate why there was no growth on the 23°C, the experiment could be performed an additional time. However, the sample could be diluted more, using a dilution other than 10-6, such as 10-8.…

    • 494 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Peroxidase Lab Report

    • 450 Words
    • 2 Pages

    The hypothesis was proven wrong by the timing and values of the graph. I believe this was caused by the enzyme having to break apart a heightened amount of substrates in the mixed test tubes. This caused the initial data to yield a quicker reaction (on the basest of browning in color) compared to the altered data. The independent variable of this experiment was time, while the dependent variable was the color as the reaction is completely dependent on the duration of time. There were numerous potentially sources of error during this experiment.…

    • 450 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Liver Lab

    • 544 Words
    • 3 Pages

    The difference between the two graphs is the speed of the reaction. The temperatures of the two tests were very similar throughout the experiment. when doing this experiment one should have a paper towel ready to wipe the side of the test tube to be able to read the temperature. Conclusion: This experiment tested the difference between a untreated and treated catalase enzyme.…

    • 544 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    In most cases, a chemical reaction is able to occur in more than one way; enzyme kinetics studies the effect of how biological catalysts can influence biochemical reactions. Enzymes play an important role in regulating metabolic pathways in the human body and without enzymes they will not function efficiently. The rate of a reaction is enhanced by enzyme activity which provides alternate pathways for the reaction to proceed by.…

    • 177 Words
    • 1 Pages
    Decent Essays
  • Superior Essays

    Amylase Biology Lab Report

    • 2820 Words
    • 12 Pages

    This same procedure was reiterated with the fungal amylase. Samples were obtained and placed in spaces on a clean spot plate where each…

    • 2820 Words
    • 12 Pages
    Superior Essays
  • Decent Essays

    The enzyme (Sternzym VC 5000) was obtained from SternEnzym company. Sternzym VC 5000 contains a pure fungal α-amylase without detrimental side activities. The enzyme has a standardized activity providing constant properties, and its fine granulation ensures an uniform distribution in flour, dry premixes or dough [32]. The activity of this fungal α-amylase is 5,000 SKB/g with optimum temperature range from 30 ℃ to 55 ℃ and optimum pH value range from 4 to 6.5.…

    • 147 Words
    • 1 Pages
    Decent Essays
  • Great Essays

    One reason for this to occur was due to different time intervals that the test tubes were left on the stand before being immerged into the water baths. Some tubes had longer time for the Pancreatin and milk to infuse together than others. Following this, we also skipped a step in which we did not shake the test tubes even though it is clearly stated in the method. This would also increase the error as the two solutions did not mix well therefore the enzyme in the pancreatic would not have reacted as fast as it could have. This impacted the overall experimental results as the test tubes which reached transparency faster compared to other, most likely were left to rest for a longer time…

    • 1935 Words
    • 8 Pages
    Great Essays
  • Improved Essays

    Starch Experiment

    • 1428 Words
    • 6 Pages

    The initial starch solution was not faulty as the control starch-iodine solution was identical to every other at the different degrees. Further refinement of the method should look into minimising the space between adding the amylase and withdrawing the time-0 sample. Looking at Fig 2.1, 60°C is shown to be the fastest acting out of the 6 temperatures, reaching a scale of 10 in the first 40 seconds, while as it took 80°C 3 minutes to reach scale 10 and 4°C and 19°C didn’t reach a colour scale of 10 in the full 4…

    • 1428 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Hydrolysis Of Starch Essay

    • 1197 Words
    • 5 Pages

    This result was not promoted by past theoretical studies which addressed that even though α-Amylase is considered to still be active at temperatures slightly lower or higher than 37°C, the rate of this enzymatic reaction under this condition is still inhibited in some extent and hence inactivated, due to changes in the moving speed of molecules, the rate at which intermolecular collisions between enzyme’s active sites and their complementary substrates occur, and the amount of energy available for the reaction. The reaction rate of any enzymes, including α-Amylase, is directly proportional to the temperature before it reaches a certain limit. As the temperature reaches this limit (which was observed to be 37°C in this experiment) , causing the reaction to also be the speed up the most, it is high enough to denature the protein composition of the enzyme, resulting in the enzyme losing its initial shape and therefore the ability to bind securely to a specific substrate molecule, which is starch in this experiment, to degrade carbohydrate molecules contained in starch to small glucose-containing polymers such as maltose, maltotriose, α-1,4 linked maltooligosacharides, and α-limit dextrins. This was exemplified by the result as the temperature of the water bath was increased to 47°C, the overall average colour grades instantly dropped by 1.28 units from 7.2 to 5.92 units (Table…

    • 1197 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Many factors can affect the enzyme activity (including temperature, pH, substrate concentration), so all conditions apart from the one being quantified should be standardised. The…

    • 1627 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    Introduction: Enzymes have a huge effect on the human body and other organisms. Enzymes are catalysts that are used to accelerate the reaction process by lowering the activation energy. For this experiment the catechol oxidase was extracted from potatoes. The enzyme is called catechol oxidase because the oxygen is reacting to catechol. Catechol oxidase causes the browning of the fruits and vegetables because the compound is toxic to the bacteria.…

    • 1142 Words
    • 5 Pages
    Improved Essays
  • Decent Essays

    The results support the first part of the hypothesis. The enzyme sample that was put into the hot water bath (80 ºC) had the smallest change in the rate meaning that there is no new products produced by the tyrosinase enzyme. No change in color presents that the substrates were not changed into the melanin product during the duration of 8 minute. The hot water bath was successful in denaturing the enzyme as represented by figure 1. The ice bucket samples (2 ºC) had the most change in the average absorbance over time presenting that tyrosinase enzyme was active in the reaction and could produce products from the substrates.…

    • 166 Words
    • 1 Pages
    Decent Essays

Related Topics