CTET & State TET Exam > CTET & State TET Questions > Which of the following preservatives operates... Start Learning for Free
Which of the following preservatives operates by the bactericidal process, directly killing germs?
- a)Sodium benzoate
- b)Vitamin E
- c)Sodium metabisulphite
- d)Sorbic acid
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which of the following preservatives operates by the bactericidal proc...
Sodium benzoate acts as a bactericidal preservative, meaning it kills germs rather than merely inhibiting their growth. This makes it effective in preserving soft drinks and acidic foods by metabolizing into hippuric acid, which is then excreted.
Free Test
FREE
| Start Free Test |
Community Answer
Which of the following preservatives operates by the bactericidal proc...
Introduction to Preservatives
Preservatives are substances added to products to prevent spoilage and extend shelf life by inhibiting microbial growth. Among the various preservatives, some act through different mechanisms including bactericidal and bacteriostatic processes.
Bactericidal vs. Bacteriostatic
- Bactericidal: These preservatives kill bacteria directly, eliminating the threat of spoilage.
- Bacteriostatic: These inhibit the growth of bacteria but do not kill them.
Understanding Sodium Benzoate
- Mechanism of Action: Sodium benzoate operates primarily as a bactericidal agent. It disrupts the metabolic processes of bacteria, leading to cell death.
- Effectiveness: It is particularly effective in acidic environments (pH below 7), making it suitable for foods like pickles, sauces, and soft drinks.
Other Options Explained
- Vitamin E: While it acts as an antioxidant, it does not possess significant bactericidal properties. Its primary function is to prevent oxidation, not to kill bacteria.
- Sodium Metabisulphite: This is more of a bacteriostatic agent. It prevents the growth of microorganisms but does not effectively kill them outright.
- Sorbic Acid: Similar to sodium metabisulphite, sorbic acid inhibits the growth of mold and yeast but does not directly kill bacteria.
Conclusion
In summary, sodium benzoate is the correct answer as it is a bactericidal preservative that actively kills bacteria, thus ensuring the safety and longevity of food products.
Preservatives are substances added to products to prevent spoilage and extend shelf life by inhibiting microbial growth. Among the various preservatives, some act through different mechanisms including bactericidal and bacteriostatic processes.
Bactericidal vs. Bacteriostatic
- Bactericidal: These preservatives kill bacteria directly, eliminating the threat of spoilage.
- Bacteriostatic: These inhibit the growth of bacteria but do not kill them.
Understanding Sodium Benzoate
- Mechanism of Action: Sodium benzoate operates primarily as a bactericidal agent. It disrupts the metabolic processes of bacteria, leading to cell death.
- Effectiveness: It is particularly effective in acidic environments (pH below 7), making it suitable for foods like pickles, sauces, and soft drinks.
Other Options Explained
- Vitamin E: While it acts as an antioxidant, it does not possess significant bactericidal properties. Its primary function is to prevent oxidation, not to kill bacteria.
- Sodium Metabisulphite: This is more of a bacteriostatic agent. It prevents the growth of microorganisms but does not effectively kill them outright.
- Sorbic Acid: Similar to sodium metabisulphite, sorbic acid inhibits the growth of mold and yeast but does not directly kill bacteria.
Conclusion
In summary, sodium benzoate is the correct answer as it is a bactericidal preservative that actively kills bacteria, thus ensuring the safety and longevity of food products.
 | Explore Courses for CTET & State TET exam |  |
Top Courses for CTET & State TETView all
Top Courses for CTET & State TET
Question Description
Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? for CTET & State TET 2026 is part of CTET & State TET preparation. The Question and answers have been prepared according to the CTET & State TET exam syllabus. Information about Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CTET & State TET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer?.
Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? for CTET & State TET 2026 is part of CTET & State TET preparation. The Question and answers have been prepared according to the CTET & State TET exam syllabus. Information about Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CTET & State TET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for CTET & State TET. Download more important topics, notes, lectures and mock test series for CTET & State TET Exam by signing up for free.
Here you can find the meaning of Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Which of the following preservatives operates by the bactericidal process, directly killing germs?a)Sodium benzoateb)Vitamin Ec)Sodium metabisulphited)Sorbic acidCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice CTET & State TET tests.
| Explore Courses for CTET & State TET exam | |
Top Courses for CTET & State TET
Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
