Edupediya.com

EDUPEDIYA – FOOD ADULTERATION PART -3   CHEMICAL METHODS TO IDENTIFY ADULTERATED FOOD: FRUITS & VEGETABLES: METHOD 1: take a cotton piece soaked with water or oil and rub the outer surface of green vegetables or fruits, if cotton turns to green color it indicates the presence of malachite green. Ø In sweet potato same technique is followed, if cotton absorbs the color it indicates the presence of rhodamine B.     ADULTERANT: malachite green& rhodamine B. METHOD 2: fruits are mainly adulterated pesticides, plant hormones, carbide for ripening fruits. ADULTERANT: carbide, pesticides. HONEY: METHOD 1: take a sample and put in a glass of water, if honey dissolves in water it indicates the presence of sugar syrup. Normal honey will settle at the bottom. ADULTERANT: sugar syrup. METHOD 2: take a match stick dipped in matchstick and strikes the matchbox if light ups it is pure otherwise it is adulterated because honey is inflammable. ADU...

EDUPEDIYA – FOOD ADULTERATION PART - 2   COMMON ADULTERATED FOODS IN INDIA: ·        Milk ·        Tea ·        Coffee ·        Vegetable   &  Fruits ·        Honey ·        Dal ·        Spices ·        Butter and cream ·        Ice cream ·        Jaggery CHEMICAL METHODS TO IDENTIFY ADULTERATED FOOD: MILK: METHOD 1 : drop milk on a polished slanting surface when milk flows leaving white trial behind it, but adulterated with water flows without leaving mark. ADULTERANT: water. METHOD 2: add few drops of iodine solution to milk sample, if sample turns blue color it indicates the presence of starch. ADULTERANT: starch. METHOD 3: add ...

  EDUPEDIYA – FOOD  ADULTERATION                                     PART-1 FOOD : v Food is an essential substance which is nutritious and gives nourishment to human as well as animals. v Food which consumed by human or animal or plant that absorbs in order to maintain our life and growth. v Food gives nutritional support to an organism and its origin is plants or animal which contains essential nutrients like carbohydrates, protein, fats, vitamins, or minerals. ADULTERATION: v Adulteration is a term which represents the action of making things poorer in quality by adding poisonous or deleterious substance. v Adulteration in food item tends to increase the quantity which results in loss of actual quality of food item. ADULTERATED FOOD TO BE DECLARED IF: v Addition of a substance which is injurious to the health. v Addition of substance which are lower i...