Soy sauce is made by fermenting a salty combination of soybeans and wheat for 8 to 12 months with a variety of microorganisms, including yeast. After the particles are removed, the resultant sauce is high in lactate and ethanol. What is the process for making these two compounds? To avoid a pronounced vinegary flavor in the soy sauce, air must be kept out of the fermenting tank (vinegar is dilute acetic acid). Why?
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Soy sauce is made by fermenting a salty combination of soybeans and wheat for 8 to 12 months with a variety of microorganisms, including yeast. After the particles are removed, the resultant sauce is high in lactate and ethanol. What is the process for making these two compounds? To avoid a pronounced vinegary flavor in the soy sauce, air must be kept out of the fermenting tank (vinegar is dilute acetic acid). Why?
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- Which of the following statements best describes the role of the enteric coating on aspirin tablets, such as the 81 mg (baby aspirin) tablets marketed by Walmart under the Equate label? Question 13 options: A) The enteric coating affects the kinetics of dissolution of the aspirin tablet. B) The enteric coating affects the thermodynamics of dissolution of the aspirin tablet. C) The enteric coating affects both the thermodynamics and kinetics of the dissolution of the aspirin tablet. D) The enteric coating affects neither the thermodynamics nor the kinetics of the dissolution of the aspirin tablet.In an extension of this experiment, you can perform the acid-catalyzed hydrolysis of starch by adding a strong acid (like HCl) to the unhydrolyzed starch solution with heating. a) Predict the results of the iodine test on the hydrolyzed starch solution. b) Predict the results of Benedict’s test on the hydrolyzed starch solution. c) Predict the results of Barfoed’s test on the hydrolyzed starch solution.You combine 0.2 g of yeast, 0.2 g of sucrose and 10 mL of water, place the mixture inside an uninfl ated balloon, then tie off the opening of the balloon. (a) Explain what you would observe over the next hour. (b) What would you observe if you added iodoacetate to the mixture? (c) What would you observe if the mixture contained lactose rather than sucrose?
- If 3.8% (w/v) of sucrose is needed in the media, how much of sucrose is required to prepare the stated volume of media: a) 1000 mL b) 250 mL1st Bag: shredded wheat original cereal, Warm water, and yeast (no sugar) 2nd Bag: Cinamon Toast Crunch, Warm Water, and yeast 3rd Bag: Fruit Loops, Warm Water, and yeast (all these bags were placed under a heat lamp for 25 minutes) (After these bags were placed under the heat lamp and they all had different reactions after put under the heat lamp, due to the sugar contents in the cereals) So the question is: The sugar content was higher in some bags than others. What did you observe in the bags containing more sugar?Cottage cheese and many other cheeses are produced by adding the enzyme rennin to milk, producing curds and whey. a) Design an experiment to determine the pH at which rennin is most effective. How will you measure the results? b) What are tests that can be used to detect protein, sugars, and fats? How can these tests to determine the chemical makeup of curds and whey?
- A patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine whether the patient has this condition, her doctors take a 18.00 mL sample of her gastric juices and titrate the sample with 4.85 × 10-4 M KOH. The gastric juice sample required 1.26 mL of the KOH titrant to neutralize it. Calculate the pH of the gastric juice sample. Assume the sample contained no ingested food or drink which might otherwise interfere with the titration. pH = For the patient to be suffering from hypochloridia, the pH of the gastric juices from the stomach must be greater than pH 4. Does the patient have hypochloridia? unable to determine no yesReports have indicated that a metabolic byproduct of Vitamin B6 produces 4-pyridoxic acid.(1) This metabolite has fluorescent properties to could “cross-talk” with quinine (i.e., increase the fluorescent signal used for quinine and result in artificially high quinine values).(2) What techniques could we employ to separate 4-pyridoxic acid and quinine in the urine sample? This is a BSL-2 lab.1st Bag: shredded wheat original cereal, Warm water, and yeast (no sugar) 2nd Bag: Cinamon Toast Crunch, Warm Water, and yeast 3rd Bag: Fruit Loops, Warm Water, and yeast (all these bags were placed under a heat lamp for 25 minutes) (After these bags were placed under the heat lamp and they all had different reactions after put under the heat lamp, due to the sugar contents in the cereals) So the question is: What is the relationship between the amount of sugar available to an organism and the carbon dioxide that is produced?
- Why should the ethanol/lysate boundary not be disturbed?A patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine whether the patient has this condition, her doctors take a 18.00 mL sample of her gastric juices and titrate the sample with 3.94 x 10-4 M KOH. The gastric juice sample required 6.60 mL of the KOH titrant to neutralize it. Calculate the pH of the gastric juice sample. Assume the sample contained no ingested food or drink which might otherwise interfere with the titration. pH = Enter numeric value For the patient to be suffering from hypochloridia, the pH of the gastric juices from the stomach must be greater than pH 4. Does the patient have hypochloridia? no O unable to determine O yesHow much nystatin stock (50 mg/mL) needs to be added to 15 mL of tryptic soy agar to give a final concentration of 50 μg/mL?