4.8. Processed foods classification

1. Minimally processed foods: These are processed as little as possible in order to retain the quality of fresh foods. Generally, the processes used are cleaning, trimming, shelling, cutting, slicing, and storage at low refrigeration temperatures.

Minimally processed foods undergo very few changes from their raw state to ensure they retain their freshness and quality. Common techniques include cleaning and cutting vegetables or fruits, which helps to prepare them for cooking or eating while ensuring they stay as natural as possible. These foods require refrigeration to maintain their quality, preventing spoilage.

Think about pre-cut vegetables you might buy at a grocery store. They are clean and ready to use, maintaining their original flavor and nutrients, similar to how you would prepare fresh veggies at home before cooking.

2. Preserved foods: The methods of preservation used do not change the character of the product substantially e.g., frozen peas and frozen vegetables, dehydrated peas, dehydrated vegetables, canned fruits and vegetables.

Preserved foods are treated in ways that extend their shelf life while keeping much of their original flavor and texture intact. Techniques like freezing or dehydrating minimize nutrient loss and prevent spoilage, allowing these foods to be available long after they are harvested.

Consider frozen peas. They are harvested at their peak and quickly frozen, preserving their taste and nutrients much like capturing a moment in time. When you cook them later, they taste fresh, despite being stored for months.

3. Manufactured foods: In such products, the original characteristics of the raw products are lost, and some basic methods of preservation are used, often using various ingredients such as salt, sugar, oil, or even chemical preservatives. Examples are pickles, jams, marmalades, squashes, papads, wadis.

Manufactured foods undergo significant changes from their raw ingredients, often resulting in a new product that may have different textures and flavors. These foods often include preservatives to enhance their shelf life, making them suitable for longer storage. The transformation involves the addition of other ingredients to achieve desired taste and consistency.

Think about fruit jam. Fresh fruit gets cooked down with sugar and preservatives to create a spreadable product. It’s quite different from the original fruit, but it offers convenience and a longer shelf life, allowing us to enjoy those flavors year-round.

4. Formulated foods: These are products prepared by mixing and processing individual ingredients to result in relatively shelf-stable food products such as bread, biscuits, ice cream, cakes, kulfi.

Formulated foods are created by combining various ingredients in specific proportions. The aim is to achieve a product that is both durable and enjoyable to eat. The formulation process can involve complex methods to ensure the final product has the right texture, flavor, and shelf stability.

Imagine baking a cake. You combine flour, sugar, eggs, and other ingredients, mixing them in just the right way to create a delicious dessert that can be kept for days. This careful blending and the use of stabilizers allow the cake to maintain its quality during storage.

5. Food derivatives: In industry, components of foods may be obtained from the raw product through purification, e.g., sugar from sugarcane or oil from oil seeds. In some cases, the derivative or the component may be processed further, e.g., conversion of oil to vanaspati (the process is called hydrogenation).

Food derivatives are products that are extracted and refined from raw materials. This can involve several steps to purify and process the original components into usable ingredients for various applications in the food industry. For example, extracting oil from seeds involves pressing and refining the oil to remove impurities.

Think about how olive oil is made. Olives are harvested, crushed, and then the oil is extracted, refined, and bottled. Consumers can then use this versatile ingredient in many dishes or for cooking.

6. Functional foods: These are foods that can have a beneficial effect on human health, e.g., probiotics.

Functional foods are designed not just to be eaten for nourishment but also to provide specific health benefits. These foods may include added nutrients or ingredients known to support health, such as probiotics found in yogurt that promote gut health.

Consider how yogurt with added probiotics is marketed. It’s not just a tasty dairy product but also provides benefits for your digestive system, making it more than just food but functional in aiding health.

7. Medical foods: These are used in dietary management of diseases, for example, low sodium salt, lactose–free milk for persons with lactose intolerance.

Medical foods are specially formulated products designed to meet the dietary requirements of individuals with specific medical conditions. These foods provide essential nutrients while avoiding problematic ingredients, making them safer for consumption by those with dietary restrictions.

Think about lactose-free milk. It allows individuals who cannot digest lactose to enjoy milk without discomfort, thus catering to their specific dietary needs without sacrificing the enjoyment of dairy products.

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