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Authoritative PPT Summary
"Fermentation Technology" PPT courseware
Part One: Situation Import
Have you ever eaten bread or yogurt? Have you ever used enzyme-added laundry detergent when washing clothes? Do you know the story of Dolly the Sheep?
learning target
1. Give examples to illustrate the application of fermentation technology in life.
2. Use fermentation technology to make a traditional food.
3. Understand the application value of biological knowledge and experience biology-related knowledge.
Pre-study tips
1. What is biotechnology?
2. What is the main role of lactic acid bacteria in the process of making yogurt?
3. What is the principle of biogas fermentation?
4. In what fields are amino acids, sweeteners, edible organic acids, and enzyme preparations mainly used?
Fermentation technology PPT, part 2 content: theme exploration
Explore theme one
Fermentation technology around you
1. Fermented foods (yoghurt, rice wine, vinegar, sauce...)
2. Biogas fermentation
yogurt
It is a milk product that uses fresh milk as raw material, is fermented by lactic acid bacteria, and then cooled and filled.
Yogurt not only retains all the advantages of milk, but also uses its strengths and avoids its weaknesses through processing in some aspects, making it a nutritional and health product more suitable for humans.
rice wine
There are two types of microorganisms in distiller's yeast: molds such as Rhizopus and Mucor and yeasts. Mold converts starch into sugar, which is the process of saccharification; yeast converts sugar into ethanol, which is the process of alcoholization.
Explore theme two
Industrial fermentation products
antibiotic
amino acids
sweetener
edible organic acids
Enzyme
Fermentation technology PPT, the third part: training to meet standards
1. The bread we eat is soft and porous. When making bread, we mainly use ( )
A. Lactic acid bacteria B. Acetic acid bacteria C. Aspergillus D. Yeast
2. Which of the following are fermented foods ( )
A.Soy sauce and vinegar B.Tofu and soy milk
C.Rice and noodles D.Milk and ham
3. In the construction of civilized ecological villages in our province, many farmers have built biogas digesters.
According to the principle of fermentation, the environment inside the biogas digester should be ( )
A. Dry and ventilated B. Dry and sealed
C. Moisture and ventilation D. moist, sealed
4. Rotten fruits will smell like alcohol. Which of the following statements is correct ( )
A. Under anaerobic conditions, lactic acid bacteria produce lactic acid and alcohol from nutrients
B. Under aerobic conditions, lactic acid bacteria use nutrients to produce lactic acid and carbon dioxide
C. Under anaerobic conditions, yeast converts glucose into carbon dioxide and alcohol
D. Under aerobic conditions, yeast converts glucose into carbon dioxide and water
Keywords: Free download of Biology PPT courseware for the second volume of the eighth grade edition of Beijing Normal University, download of Fermentation Technology PPT, .PPT format;
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