character: Ms. Thompson
topic: Applications of Organic Acids in Food Preservation
grade: 11
subject: Chemistry
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character: Mr. Patel
topic: The Role of Acetic Acid in Pickling
grade: 11
subject: Chemistry
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character: Dr. Wang
topic: Understanding pH and Its Impact on Food Spoilage
grade: 11
subject: Chemistry
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character: Mrs. Rivera
topic: Natural Preservatives: Citric Acid and Its Benefits
grade: 11
subject: Chemistry
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