[Biology Class Notes] on Food Adulteration Pdf for EXAM

Food is the basic necessity of life. The food we eat is absorbed by our body and is used to run metabolic processes and sustain life. Food is essential for growth, and various life processes. An array of food in our daily diet includes vegetables, fruits, legumes, pulses, grains, etc. All of these are either consumed raw or made into delicacies and savoured. But, nowadays, you might have seen very thin milk due to mixing with water, white, yellow, or black pebbles in raw pulses, white tiny stones mixed with rice, and so on. This mixing of elements with food items is adulteration.

As we deal with the overgrowing population, environmental hazards, and depleting natural resources, one of the man-made hazards is the adulteration of food. When food is contaminated with external sources or when its natural composition or quality is changed, it is adulterated. Food adulteration has serious effects on our health. Despite various measures taken by the government, spreading awareness about the hazards of food adulteration is a prevalent practice in many countries. Various methods of food adulteration are deployed by the food industries using various chemical and synthetic substances. The article encompasses the discussion of food adulteration, types, and methods below.

What is Food Adulteration?

Adulteration is a legal offence and when the food fails to meet the legal standards set by the government, it is said to have been adulterated. Food adulteration takes place when intentionally or unintentionally substances that degrade the quality of food are added to it. Thus, food adulteration can be defined as the contamination or adulteration of food or food materials by adding harmful substances to it.

What is Adulterant?

The substances that lower the quality of food, when added to it, are called adulterants. It is a substance found within other food substances that hamper the natural quality of the food. The adulterant may be present in any form and in any quantity. Adulterants are mostly harmful and pose the ability to lower the potency of the product. Even if the adulterant is not harmful, it reduces the nutritional value of the food to a greater extent. Some adulterants are also identified as carcinogenic or lethal when exposed to them for a longer period. Different types of adulterants are used to adulterate different types of food.

When is Food Considered Adulterated?

There are some conditions that are required to conclude whether a food is adulterated or not. These points are summarised below.

Examples of Food Adulteration

Some of the examples of food adulteration are listed below.

Why is Food Adulteration Done?

For many years, you might have noticed the practice of adding water to milk to increase its quantity and gain more profit from less volume of milk. Similarly, food adulteration is done by food manufacturers and industries for various reasons.

1. Food adulteration is practised as a part of a business strategy to gain more profit by cheaper means.

2. It is also done to make the food presentable and as an imitation of some other food which is more in demand.

3. Food adulteration is many times done by those who do not have a proper understanding of its hazards. Due to a lack of awareness and proper knowledge, it is still widely practised.

4. Adulteration increases the weight of the food, helps gain more profit, and increases sales in cheaper ways.

5. The increasing rate of the population also plays a major role in food adulteration.

6. The inefficiency of government initiatives to control it.

Types of Food Adulteration

There are four different types of food adulteration.

• Intentional Adulteration:– When substances that look similar to the constituents of the food are added to it, to increase its weight and gain more profit. Example- mixing of pebbles, stones, marbles, sand, mud, filth, chalk powder, contaminated water, etc.

• Incidental Adulteration:– Incidental adulteration occurs due to negligence while handling food. Like residues of pesticides in grains, larvae growth, presence of droppings of rodents, etc.

Methods of Food Adulteration

Various food adulteration methods are as follows:-

• Mixing:– Mixing of sand, dust, clay, mud, and pebbles with food particles.

• Using Decomposed Food:– This method indicates mixing decomposed food with healthy ones. Food that even conceals damage or inferiority of any manner is also considered to be adulterated. Also, the deliberate mixing of healthy food with questionable quality food leads to the final product being adulterated.

• Additions of Toxic Substances:– Food adulteration also involves the mixing of food with toxic substances to gain higher profit and increase sales. For example, addition of colour, dyes, or harmful unpermitted preservatives.

• Misbranding:– Altering the manufacturing dates, expiry dates, list of ingredients or misleading ingredient derivatives, and so on.

• Artificial Ripening:– Adding chemicals to the fruits and vegetables which speed up the process of ripening in them, is also considered food adulteration. For example, mango is ripened with carbide for meeting the commercial demand against supply.

Effects of Food Adulteration

Food adulteration has a great impact on our health. Be it any kind of adulteration, prolonged consumption of this type of food is very harmful to the body. Consuming such food increases the toxicity in the body. As the nutritional value of the adulterated food goes down, such food is no longer nutritive for the body. The addition of chemical adulterants and colours many times proves to be fatal. as they pose an onset of health risks and also carcinogens. Some adulterated food may also affect our internal organs directly leading to heart, kidney, liver, and many more organ disorders and failure.

How to Detect Food Adulteration

Food adulteration has many ill effects on our health. Prolonged consumption of adulterated food may even prove to be lethal. The use of organic food is more trending these days, as organic foods give us the complete nutrition that a particular food is supposed to give. It is not laden with harmful chemicals or polished with toxins like wax. But, due to low productivity, organic food is not always available and is more expensive than the common produce. Therefore, it is important to detect if your food is adulterated. Various home methods can be used to do this.

For example, to determine if milk is adulterated with detergents, take some milk in a bottle along with some water and shake it well. If it settles into a frothy layer, it is pure. If the milk is adulterated, it forms a thick layer.

Similarly, if you want to know if milk, sugar, or jaggery is adulterated with chalk powder, take your sample and mix it in a glass of water. Any precipitate at the bottom of the glass indicates the presence of chalk.

To determine if the vegetables are polished with colour, soak them in water for some time and you will be able to see the colour getting dissolved in water.

How to Prevent Food Adulteration

Some of the methods of prevention of food adulteration are mentioned below.

• In Indian markets, FSSAI is the government license number that stands for food safety. Thus, always make sure to look for FSSAI, a list of ingredients, manufacturing, and expiry dates on the food packs.

This was the complete discussion on food adulteration.