I am a 3rd year mbbs student and i have exam today , So gige me short note on food adulteration
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I now have all the information needed from Park's Textbook. Here is a well-structured short note:
SHORT NOTE: Food Adulteration
(Source: Park's Textbook of Preventive and Social Medicine)
Definition
Food adulteration is the process by which the quality or nature of a given food substance is reduced through the addition of any foreign, inferior, harmful, or cheaper substance, OR through the abstraction (removal) of any valuable constituent from it.
Under the Prevention of Food Adulteration (PFA) Act, 1954, a food is considered adulterated if:
- Any substance has been added that reduces quality
- Any valuable constituent has been wholly or partly abstracted
- It is prepared under unsanitary conditions
- It consists of decomposed or diseased animal/vegetable matter
- It contains any added substance injurious to health
- Its container is composed of poisonous material
- It bears a false label
Types of Adulteration
| Type | Description |
|---|---|
| Intentional | Deliberate addition of adulterant (e.g., water in milk, chalk in flour) |
| Incidental / Unintentional | Due to ignorance, carelessness, or improper storage (e.g., pesticide residues, fungal toxins) |
| Metallic contamination | Due to processing machinery or packaging (e.g., lead, tin, arsenic) |
Common Adulterants in India (Park's Table 37)
| Food | Common Adulterant |
|---|---|
| Cereals (wheat, rice) | Mud, grit, soapstone bits |
| Dals | Coal-tar dyes, khesari dal |
| Haldi (Turmeric) | Lead chromate powder |
| Dhania powder | Starch, cow/horse dung powder |
| Black pepper | Dried seeds of papaya |
| Chilli powder | Saw dust, brick powder |
| Tea | Blackgram husk, tamarind seeds, saw dust |
| Coffee | Date husk, tamarind husk, chicory |
| Mustard seeds | Seeds of Argemone (prickly poppy) |
| Edible oils | Mineral oils, Argemone oil |
| Butter | Starch, animal fat |
| Milk | Fat extraction, starch + water added |
| Ghee | Vanaspati |
| Ice cream | Cellulose, starch, non-permitted colours |
Health Effects of Common Adulterants
| Adulterant | Health Hazard |
|---|---|
| Khesari dal (Lathyrus sativus) | Lathyrism - irreversible lower limb spastic paralysis |
| Argemone oil (in mustard oil) | Epidemic dropsy - pitting edema, cardiac failure, glaucoma |
| Lead chromate (in turmeric) | Lead poisoning - encephalopathy, anemia, nephropathy |
| Tricresyl phosphate (TCP) | Polyneuropathy, paralysis, death |
| Coal-tar dyes | Carcinogenicity |
| Vanaspati in ghee | Coronary artery disease (trans fats) |
| Mineral oils | Lipoid pneumonia if aspirated |
Prevention of Food Adulteration (PFA) Act, 1954
- Enacted by Indian Parliament to ensure pure and wholesome food to consumers
- Amended in 1964, 1976, and 1986 (1986 amendment most significant - gave consumers power to take food samples)
- Punishment for proven adulteration: minimum 6 months imprisonment + Rs. 1,000 fine
- For adulteration causing death or grievous hurt (under IPC Sec. 320): up to life imprisonment + Rs. 5,000 fine
- Central Committee for Food Standards - expert body framing rules under the Act
- Any food not conforming to minimum standards = adulterated
Note: The PFA Act, 1954 was largely replaced by the Food Safety and Standards Act (FSSA), 2006, which established the Food Safety and Standards Authority of India (FSSAI) as the apex regulatory body.
FSSAI (Food Safety and Standards Authority of India)
- Established under FSSA, 2006
- Single regulatory authority replacing multiple Acts (PFA, FPO, MPO, etc.)
- Sets standards for food articles, regulates manufacture, storage, distribution, sale and import
- Operates under Ministry of Health and Family Welfare
Food Additives vs. Adulterants
| Feature | Food Additive | Adulterant |
|---|---|---|
| Intent | Improve appearance, shelf life, texture | Fraud, profit |
| Legality | Permitted (with limits) under law | Illegal |
| Examples | Saffron (colour), saccharin (sweetener), sodium benzoate (preservative) | Coal-tar dyes, argemone oil |
Important One-Liners for Exam
- Epidemic dropsy - caused by argemone oil in mustard oil - presents with pitting edema, glaucoma, cardiac failure
- Lathyrism - khesari dal (Lathyrus sativus) - BOAAN neurotoxin - spastic paraplegia in young adults
- Lead chromate in turmeric - most common adulterant responsible for lead poisoning
- Chicory - classic adulterant in coffee
- Vanaspati - adulterant in ghee (detected by Baudouin test - red colour with furfural + HCl)
- Papaya seeds - adulterant in black pepper
- PFA Act 1954 - minimum sentence 6 months; for grievous hurt - life imprisonment
- FSSAI - established under Food Safety and Standards Act, 2006
Good luck on your exam today! Focus especially on the adulterant-disease pairs (Argemone oil → Epidemic dropsy; Khesari dal → Lathyrism; Lead chromate → Lead poisoning) as these are high-yield MCQ favorites. - Park's Textbook of Preventive and Social Medicine, p. 754-755
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