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प्रश्न
What are food preservatives?
उत्तर १
Food preservatives are chemicals that prevent food from spoilage due to microbial growth. Table salt, sugar, vegetable oil, sodium benzoate (C6H3COONa), and salts of propanoic acid are some examples of food preservatives.
उत्तर २
Chemical substances which are used to protect food against bacteria, yeasts and moulds are called preservatives. For example, sodium benzoate and sodium metabisulphite.
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संबंधित प्रश्न
Which one of the following is a food preservative?
Equanil, Morphine, Sodium benzoate
Why do we require artificial sweetening agents?
Why is use of aspartame limited to cold foods and drinks?
What are artificial sweetening agents? Give two examples.
Explain any two chemical methods of food preservation.
Seeing the growing cases of diabetes and depression among children, Mr. Chopra, the principal of one reputed school organized a seminar in which he invited parents and principals. They all resolved this issue by strictly banning the junk food in schools and by introducing healthy snacks and drinks like soup, lassi, milk etc. in school canteens. They also decided to make compulsory half an hour physical activities for the students in the morning assembly daily. After six months, Mr. Chopra conducted the health survey in most of the schools and discovered a tremendous improvement in the health of students.
After reading the above passage, answer the following questions :
(i) What are the values (at least two) displayed by Mr. Chopra ?
(ii) As a student, how can you spread awareness about this issue ?
(iii) Why should antidepressant drugs not be taken without consulting a doctor ?
(iv) Give two examples of artificial sweeteners.
Why the use of alitame as an artificial sweetener is not recommended?
Why the use of alitame as an artificial sweetener is not recommended?
Which of the following chemicals can be added for sweetening of food items at cooking temperature and does not provide calories?
Which of the following will not enhance nutritional value of food?
Sugar is the main source of energy as it produces energy on metabolic decomposition. But these days low calorie drinks are more popular, why?
What is the difference between saccharin and saccharic acid?
Name an artificial sweetener which is derivative of sucrose.
Name two α-amino acids which form a dipeptide which is 100 times more sweet than cane sugar?
Sodium salts of some acids are very useful as food preservatives. Suggest a few such acids.
Rayon is:
Which synthetic sweetener is 100 times sweeter than cane sugar?
Which of the following is a naturally occurring antioxidant?
The artificial sweetener that has the highest sweetness value in comparison to cane sugar is ______.
