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प्रश्न
Define antioxidants?
Define antioxidants and mention two examples.
उत्तर १
Antioxidant is a substance which when added to food retards or prevents the oxidative deterioration of food.
Examples:
BHA, BHT
उत्तर २
Antioxidant: is a substance which when added to food, retards or prevents oxidative deterioration of food. Fats and oils are oxidized easily, turn rancid and becomes unpalatable
संबंधित प्रश्न
Draw structure of BHT.
Write ‘four’ physical methods of preserving food materials
Which one of the following is a food preservative?
Equanil, Morphine, Sodium benzoate
What are food preservatives?
Why is use of aspartame limited to cold foods and drinks?
What are artificial sweetening agents? Give two examples.
Name a sweetening agent used in the preparation of sweets for a diabetic patient.
What problem arises in using alitame as artificial sweetener?
Explain any two chemical methods of food preservation.
Among the following, which one acts as a food preservative?
Aspartame, Aspirin, Sodium Benzoate, Paracetamol
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.
Write one example each of Artificial sweetener.
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?
Which of the following are not used as food preservatives?
(i) Table salt
(ii) Sodium hydrogencarbonate
(iii) Cane sugar
(iv) Benzoic acid
Sugar is the main source of energy as it produces energy on metabolic decomposition. But these days low calorie drinks are more popular, why?
Pickles have a long shelf life and do not get spoiled for months, why?
Sodium salts of some acids are very useful as food preservatives. Suggest a few such acids.
Of the following properties about thiosulphate, which one is not applicable?
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 ______.
