Preview

Preparation of Penicillin

Good Essays
Open Document
Open Document
3767 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Preparation of Penicillin
IV. MATERIALS AND METHODS

Process Description

The classical penicillin production process is an aerobic fermentation in fed batch fermenters made with some Penicillium strains, usually Penicillium chrysogenum (Nielson, 1997) that transforms substrates rich in carbohydrates into penicillin. As with other antibiotic production processes (Cunha et al., 2002), the penicillin process operated at antibiotics involves four stages. The incubation of the culture strain provides the seed that grows in seed fermenters until a stage of maturity is reached. Then, the seed is transferred to a final-stage fermenter. These fermenters are operated in fed-batch mode under standard conditions in order to optimize the synthesis of penicillin. After that, the product is withdrawn by solvent extraction in the downstream. Penicillium chrysogenum ATCC 16520 (Obtained from American Type Culture Collection) is used for the production of Penicillin.

Preparation of Different Salts of Phenyl acetic acid.

Sodium phenyl acetate

For 100 ml preparation, few grams of PAA (of known percentage) are dissolved in certain volume of De-Mineralized water. The pH of the solution is maintained between 6.6-7 by adding NaOH in drops. Molecular Weight-159.

Potassium phenyl acetate

For 100 ml preparation, few grams of PAA (of known percentage) are dissolved in certain volume of De-Mineralized water. The pH of the solution is maintained between 6.6-7 by adding KOH in drops. Molecular Weight-175.

Ammonium phenyl acetate

For 100 ml preparation, few grams of PAA (of known percentage) are added in certain volume of De-Mineralized water. The pH of the solution is maintained between 6.6-7 by adding NH4OH in drops. Molecular Weight-154.

Industrial penicillin production from Penicillin chrysogenum involves two stages:

a. Lab stage and b. Plant stage.

The plant stage was further divided into Pilot plant stage and Production plant stage. This project work was carried out in both Lab and

You May Also Find These Documents Helpful

  • Good Essays

    Nahco3 Hydrochloric Acid

    • 1247 Words
    • 5 Pages

    Firstly we weighed the solid sample of sodium hydrogen carbonate with an accurate balance; then dissolved in distilled water up to 250ml to make a…

    • 1247 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Oil Of Wintergreen

    • 516 Words
    • 3 Pages

    The solution then gets foggy/cloudy and white snowlike precipitate is floating within the solution. Heat is added along with a stir bar. The stir bar starts stirring at minute 7. It begins to dissolve the white powder as it spins. At minute 26 the solution becomes clear with barely any flakes left. Sulfuric acid is then added and white flakes are formed. More acid is added until the pH paper turns red. The round bottom is filled with white precipitate. The precipitate is put onto a hirsh funnel that uses vacuum filtration to isolate the precipitate. The product is then added to a beaker with D.I water and heated. It’s put through the hirsh funnel . 3.68 grams of salicylic acid is recovered. The melting point is tested to compare to a perfect sample. The melting point is 146C0. The product is dried and added to a beaker with D.I. water and 10mL of acetic anhydride and 20 drops of concentrated sulfuric acid. This product is chilled to produce crystals. Its then filtered using a hirsh filter using vacuum filtration. Recrystallized and filtered one last time. The product is now acetylsalicylic acid…

    • 516 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Lifesaver Lab

    • 836 Words
    • 4 Pages

    In the first cup we add 20 ml of salt. In the second cup we add 20 ml of baking soda. In the third cup we add 20 ml of room temperature clear water. We obtained 100ml of solution in #1 and #2 and 100ml of only solvent water in cup #3.…

    • 836 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Panacetin Essay

    • 943 Words
    • 4 Pages

    Add 8.0 mL of dichloromethane to the 0.40 g of Panacretin and shake thoroughly, then place in a centrifuge, at three (3) speed for three (3) minutes. Extract the Sucrose and weigh using a digital scale (must be tared for accuracy). Separate the 8.0 mL of DCM to two (2) test tubes, each containing 4.0 mL of DCM. Add 4.0 mL of NaHCO3 (Sodium bicarbonate) to each of the two (2) test tubes and stir using a stirring rod until two (2) layers are visible, a thin top layer and thick-filmy bottom layer. Extract the bottom layers from the two (2) test tubes to a vial using a glass micropipette and a rubber suction cap/top and seal immediately. Conjoin the two (2) top layers to a 50 mL flask and add 1.0 mL of 6.0 M HCl to the beaker containing the solution and stir until the fizzing subsides. Test the pH of the solution with 6.0 M HCl added using pH paper, which has a color chart to analyze the results. Continue to add 1.0 mL of 6.0 M HCl until the pH of the solution is two (2) or less. Place the solution with the pH of 2 or less into an ice bath/cold water bath to form crystallization of aspirin for approximately five (5) minutes. After the five (5) minutes, establish a funnel system using a Hirsche Funnel attached to a vacuum filtration system located on/in the hood, to extract the Aspirin crystals formed from the ice bath/cold water bath. Weigh the crystals of aspirin using a digital…

    • 943 Words
    • 4 Pages
    Better Essays
  • Powerful Essays

    Chem Lab Report

    • 1164 Words
    • 5 Pages

    .2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…

    • 1164 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Spinach Leaves

    • 626 Words
    • 3 Pages

    The sample should be dissolved in a suitable solvent to make around a 1% solution. The solute should be present at a concentration in the 0.2-2.0% range.…

    • 626 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The challenge of mass-producing the drug was daunting. On March 14, 1942, the first patient was treated for streptococcal septicemia with U.S.-made penicillin produced by Merck & Co. Half of the total supply produced at the time was used on that one patient. By June 1942, there was just enough U.S. penicillin available to treat ten patients. A moldy cantaloupe in a Peoria, Illinois market in 1943 was found to contain the best and highest-quality penicillin after a worldwide search. The discovery of the cantaloupe, and the results of fermentation research on corn steep liquor at the Northern Regional Research Laboratory at Peoria, Illinois, allowed the United States to produce 2.3 million doses in time for the invasion of Normandy in the spring of 1944. Large-scale production resulted from the development of deep-tank fermentation by chemical engineer Margaret Hutchinson…

    • 316 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Respiratory

    • 769 Words
    • 4 Pages

    oxygen are pH 7.18, PaCO2 92 mm Hg, PaO2 32 mm Hg, HCO3 27 mmol/L, base excess (BE) -5 mmol/L, SaO2 53%.…

    • 769 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Biology 101 Lab Paper

    • 275 Words
    • 2 Pages

    * The procedure that we followed was to take two test tubes and label one pH2 and one pH10 and incubate 1 ml of each solution for 30 minutes. Then after 30 minutes we added…

    • 275 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Lidocaine Synthesis

    • 1214 Words
    • 4 Pages

    An ice water bath for 100 mL of water was prepared. It was noted that gloves had to be put on at this time. 3.0 mL of 2,6-dimethylaniline in a 10 mL graduated cylinder. Then, a larger cylinder was used to measure out 15 mL of glacial (concentrated) acetic acid. This was poured into a 125 mL Erlenmeyer flask. Both graduated cylinders were rinsed thoroughly with acetone several times. The 2,6-dimethylaniline was added via a Pasteur pipet to the acetic acid. The graduated cylinder was rinsed with acetone and left to air dry. 2 mL of 2-chloroacetyl chloride was measured and poured into the Erlenmeyer flask. A thermometer was placed to record any temperature change during this process. A large graduated cylinder was used to measure out 25 mL of .333 M Sodium Acetate directly to the Erlenmeyer flask. The temperature increased from 30 to 32 degrees Celsius. 60 mL of…

    • 1214 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    However, some of the diseases started to build up a resistance to the antibiotics and in result, the antibiotics became ineffective. In order to help resolve the crisis, antibiotics were found through screenings of soil microorganisms. However, soil microorganism’s antibiotics were depleted by the 1960s and their antibiotic effects were unable to be replicated through synthesis. In this experiment, the researchers developed numerous methods to cultivate uncultured organisms in their environment. The goal of this experiment was to find antimicrobials in the uncultured soil. Through this successful experiment, the researchers were able to discover a new antibiotic…

    • 657 Words
    • 3 Pages
    Good Essays
  • Good Essays

    penicillin is a group of B-lactam antibiotics which are used to get rid of bacterial infections in the body. The medication works by weakening the peptidoglycan layer found inside the bacterial wall thus preventing the cell wall from combining with the bacterial cells. An allergic reaction to penicillin is a situation when the body’s immune system causes a hypersensitive response on the ingestion of penicillin. This reaction is triggered when a foreign body called an allergen, in this case penicillin, enters the body. The body’s response is the release of chemical mediators called histamine from mast cells which have an antibody attached to it. These antibodies which are attached to the mast cells are called immunoglobulin-E (IgE) and assists…

    • 155 Words
    • 1 Page
    Good Essays
  • Powerful Essays

    5. Then add approximately 150ml of 2 M NH3(aq) while stirring. A white precipitate of MgNH4PO4*6H20will form. Allow the mixture to sit at room temperature for 15 minutes to complete the precipitation.…

    • 818 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Penicillin Discovery

    • 586 Words
    • 3 Pages

    According to Mary Bellis from “The History of Penicillin,” “Penicillin is one of the earliest discovered and widely used antibiotic agents, derived from the Penicillium mold” (123). Penicillin is a vital part of today’s society and is considered a major drug in modern society. This drug has risen to be an important drug because of its discovery, and the development of the antibiotic.…

    • 586 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Acids, Bases & Buffers

    • 1865 Words
    • 11 Pages

    Acetic acid (MW=60 g/mol), NaOH solution (0.5M), HCl solution (0.001M), calibration buffer (pH3.5 and pH 5.5), 7-UP, 100 Plus.…

    • 1865 Words
    • 11 Pages
    Better Essays