Useful Microorganisms ( Microbes)| Benefits of Microorganism

Friendly microorganism or useful Microorganisms

Microorganisms have lots of benefits not only for us but for the whole nature. We get Various useful substance from microorganism. Different bacteria produces different substances like alcohol, lactic acid, maleic acid, vitamins an enzymes.
Following are some examples of how microorganism benefit us:-

Useful  in making of many food products

Microorganisms are used in making curd bread  and many food preparations like pickles, Dhokla, idli , cheese, sausages and  sauerkraut etc.
Making curd:–  curd is made from the fermentation of the lactose  present in the milk by rod shaped bacteria lactobacillus to produce lactic acid. It also acts on milk protein to give curd its texture and acidic test.


Making food like idlis, cheese, pickles, sausages also requires the action of microorganisms to give its characteristics taste and texture.
Making bread: –  Yeast is used in baking industry to make bread .Yeast utilizes the sugar present in the dough and gives out carbon dioxide and a nice flavor. Carbon dioxide gas fill the dough and increase its volume. This makes the bread rise.

Microorganisms are also used for many other purposes such as in the manufacturing of tea and coffee.

Commercial use of microorganisms

Alcohol and Acetic Acid (Vinegar) production

Microorganisms are used the production of alcohol and acetic acid.

  • Alcohol

Yeast converts sugar into alcohol and carbon dioxide.  Sugar present in many substances such as barley, maize, rice, cane juice, great juice is converted by yeast into alcohol. The process of conversion of sugar into alcohol by the action of yeast is called fermentation. Yeast is used in the production of alcohol.


Therefore Yeast is used in the production of alcoholic drinks such as wine, beer,
whisky etc.
Yeast is also used in the production of industrial spirit.

  • Acetic Acid (Vinegar)

Alcohol is Converted into acetic acid (Vinegar) by Bacteria named Acetobacter.

Uses of microorganism in pharmaceutical industry. | Medicinal Use of Microorganisms

  • Antibiotics production

Many microorganisms produces a substance which kills many disease causing microorganisms, the substance is called as antibiotics. Most antibiotics including penicillin ,streptomycin, neomycin, ampicillin, tetracycline,  Erythromycin, etc are obtained from specific fungi and bacteria.


Antibiotics are used to treat many diseases in humans  especially caused by bacteria and fungi.

  • Vaccines production

Microorganisms are also used to make many vaccines which provides immunity against a particular disease.


These vaccines which are made by using  microorganisms contains dead or attenuated( weekend)  disease causing microorganisms. When such vaccines are given to healthy person orally or by injection , the body of that person   responds by producing antibodies in its blood .
Many diseases can be prevented by vaccination of children at proper age

  • Steroid production

Microorganisms also produce  steroids which can be used in many treatments for human body as well as for the growth of plants.

  • Production of vitamins.

Microorganisms produces  vitamin B12 which can be used for human consumption.

  • Production of Useful hormone

Microorganisms with the help of genetic engineering produces lots of essential hormones which can be used for human treatment. For example with the help of genetic engineering E coli produces very important hormone insulin.

Plant hormones are also produce by microbes which can be used for the growth of plants.

  • Production of enzyme by microbes

Microorganisms produces many enzymes which can be used in, agricultural, chemical industry, food processing industry, textile industry, pharmaceuticals, wood processing industry, cosmetics an environmental pollution control.

Important role of Microorganism in environment

  • Sewage treatment plants

Microorganisms plays important role in the treatment of sewage.

  • Cleaning the environment

Microorganisms converts dead plants , animals, animal  waste into simple substances which not only mix up with soil but makes it more fertile.  Microorganisms cleans up the environment by decomposing the harmful and smelly dead remains of animals, daily garbage produced by us, plant waste and animal wastes.

  • Increase the fertility of soil.

Microorganisms not only cleans the environment but they produce essential for plants by decomposing the organic waste.Microorganisms present in the soil fix the nitrogen present in the atmosphere. Into nitrogen compound. This nitrogen compound increase the fertility of soil. For example, Blue green algae, Rhizobium.
Blue green algae fix Nitrogen gas from the atmosphere to enrich the soil with nitrogen compounds and increase its fertility. Rhizobium Bacteria present in the root nodules of leguminous plant also fix atmospheric nitrogen and increase the fertility of the soil

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