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प्रश्न
Pickles have a long shelf life and do not get spoiled for months, why?
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उत्तर
Table salt, sugar vegetable oils and sodium benzoate, etc. are used as preservatives. These do not allow moisture and air to enter the material and hence, bacteria cannot thrive on them. Therefore, pickles do not get spoiled for months.
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संबंधित प्रश्न
Define antioxidants?
Which one of the following is a food preservative?
Equanil, Morphine, Sodium benzoate
Seeing the growing cases of diabetes and depression among young children, Mr Lugani, the principal of one reputed school, organised a seminar in which he invites parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the health survey in most of the school and discovered a tremendous improvement in the health of the students
After reading the above passage, answer the following questions:
(i) What are the values (at least two) displayed by Mr Lugani?
(ii) As a student, how can you spread awareness about this issue?
(iii) What are antidepressant drugs? Give an example.
(iv) Name the sweetening agent used in the preparation of sweets for a diabetic patient.
Mr. Roy, the principal of one reputed school organized a seminar in which he invited parents and principals to discuss the serious issue of diabetes and depression in students. They all resolved this issue by strictly banning the junk food in schools and to introduce 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. Roy 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 :
(i) What are the values (at least two) displayed by Mr. Roy ?
(ii) As a student, how can you spread awareness about this issue ?
(iii) What are tranquillizers ? Give an example.
(iv) Why is use of aspartame limited to cold foods and drinks ?
What are food preservatives?
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.
Write one example each of Artificial sweetener.
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 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?
Aspartame is unstable at cooking temperature, where would you suggest aspartame to be used for sweetening?
Assertion: Artificial sweeteners are added to the food to control the intake of calories.
Reason: Most of the artificial sweeteners are inert and do not metabolise in the body.
Which synthetic sweetener is 100 times sweeter than cane sugar?
Which of the following is a naturally occurring antioxidant?
