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What is Fat or oil - PowerPoint PPT Presentation


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What is Fat or oil . 1)Fat or oil is any neutral, nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic and lipophilic .

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what is fat or oil
What is Fat or oil

1)Fat or oil is any neutral, nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic and lipophilic.

2)Fats are organic compounds composed of carbon, hydrogen and oxygen content and are usually flammable and slippery. 

what is fat or oil1
What is Fat or Oil

3)The term fats includes fats and oils which are greasy in feel and insoluble in water.

4)In addition to fat and oils there are certain fat like substances called as cholesterol. Ref: Wikipedia

uses of fat or oil
Uses of Fat or Oil
  • The basic use of fats and oils in cookery is to add richness and flavor to food and as a cooking medium to fry or cook food.
  • They improve the texture of various preparations of food.
  • The quality of the food product depends largely on the fat or oil which is used while preparing it.
functions of oils
Functions Of Oils
  • Palatability and satiety of food.
  • Concentrated source of energy.
  • Protects organs.
  • Protects nerves.
  • Keeps body warm and helps to absorb and move nutrients around.
  • Hormone production.
  • Carriers of fat soluble vitamins.
sources of fats and oils
Sources of fats and oils

Fats and oils are found in

Plants--

Animals--

Marine foods--

Popular fats and oils are available in two

forms….

1)Visible

2)Invisible fats

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Visible Fats

Oils

Butter

Vanaspati ghee (Dalda),

Spreads (emulsion of water and oil)

Margarine (synthetic emulsion of fats and

oils),

Fresh creams,

Cheese, Ghee,

Animal fats like Lard and Tallow.

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Invisible fats

Cereals

Pulses

Nuts

Milk

Curd

And in some vegetables and fruits.

various oils
Various Oils
  • Coconut oil -- Extracted from the kernel or meat of the fruit of the coconut palm.
  • Corn oil -- One of the principal oils sold as salad and cooking oil.Cottonseed oil -- Used as a salad and cooking oil.
  • Olive oil--Used in cooking and salad making.
  • Palm oil-- The most widely produced tropical oil. Popular in west.
  • Peanut oil-- (Ground nut oil) A clear oil with some applications as a salad dressing and due to its high smoke point, especially used for frying.
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Rapeseed oil--including Canola oil, one of the most widely used cooking.

  • Safflower oil--until the 1960s used in the paint industry, now mostly as a cooking oil.
  • Sesame oil--cold pressed as light cooking oil, hot pressed for a darker and stronger flavor.
  • Soybean oil-- produced as a byproduct of processing soy meal.
  • Sunflower oil --a common cooking oil.
  • Mustard oil --used for cooking
recommended fat oil day
Recommended Fat (Oil) / day
  • The total energy intake up to 30 % of daily need may be met from fats.
  • In adults, pregnant woman, Lactating woman, Infants 20 % per day.
  • In Young children 25 % per day.