Rancidity of fats and oils and Types of rancidity or Factors Causing Rancidity and Harmful Effects of Rancid Food and also disscuss Prevention of Rancidity

1. Subject : Food technology
Presented by : Muhammad Imtiaz
Bs (fst) 𝟑𝑵𝑫 semester in umt
Presented To : Mam Aqsa Akhtar
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2. The spoilage of fats and oils to give off characteristic bad odour is know as rancidity.
 Examples of rancid food:
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3. Rancidity of fats and oils:
 The products of rancidity are toxic.
 Rancidity destroys the fat-soluble vitamins.
 Rancidity destroys the polyunsaturated essential fatty acids
 Rancidity causes economical loss because rancid fat is inedible
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4. Rancidity : Active Sites: 04

5. Types of rancidity:
There are three types of rancidity:
1) Hydrolytic Rancidity
2) Oxidative Rancidity
3) Ketonic Rancidity
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6. Factors Causing Rancidity:
1) Catalysts trace metal ions & inorganic salts
2) Temperature
3) Time
4) Light
5) Water
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7. Harmful Effects of Rancid Food:
 Leads to deficiencies such as anaemia
 Hair loss
 Kidney
 Heart disease
 Cancer

8. Prevention of Rancidity:

9. THANK YOU
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