Note on Economic Importance of Yeast

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Economic Importance of Yeast

Yeast exhibits both beneficial and harmful activities to human beings.

Advantages of Yeast

  • Yeast takes part in the alcoholic fermentation of sugar molasses to alcohol and carbon dioxide.
  • They are used in baking industries to make bread.
  • They are used in the synthesis of protein, fat, vitamins and enzymes.
  • Yeast Vite tablet is used as food value.
  • Along with bacteria, the yeast gives characteristic flavour in coca beans.
  • Some yeast cells are used in the treatment of skin diseases.

Disadvantages of Yeast

  • Yeast spoils food, vegetables and fruits.
  • They cause many plant and animal diseases.

Economic Importance of Fungi

It also posses both useful and harmful activities to the human beings.

Food:

Agaricus composters, Amanita vaginata are used as nutrient-rich food.

 baking items
source:www.on-food.com
fig:baking items

Used in baking industries, brewing industries:

Saccharomyces cerevisiae is used in baking industries for making the bread soft and in making alcohol.

Enzymes production:

Saccharomyces cerevisiae is used for the production of Invertase zymase.

Aspergillus niger? Protease, Amylase

Antibiotic preparation:

Penicillium notatum? Penicillin

Aspergillusproliferans? Proliferin

Organic acid
source:trade.indiamart.com
fig:Organic acid

Organic acid preparation:

Citric acid? Aspergillus niger

Oxalic acid? Penicillium glaucas

In hormone production:

One of the most important plants growth hormone, gibberellin is produced by the fungus Gibberella fljikuroi.

In study:

Some fungi like Neurospora are exclusively used in different genetical studies.

Harmful effect

spoilage of food
source:www.hearts.com
fig:spoilage of food

In spoilage of food

Several fungi are responsible for food spoilage in nature. Eg; Rhizopus nigricans spoils stored sweet potatoes. Yeast spoils the tomato.

Causes plant diseases

Several fungi destroy many agricultural crops, fruits, nut plants ornamental plants and shade trees.

Mushroom poisoning
source:en.wikipedia.org
fig:Mushroom poisoning

Mushroom poisoning

Sometimes poisonous mushrooms like Amanita phalloides, A.vernaetc are mistaken as edible mushrooms and as a consequence, the person pops off.

A variety of fungi causes several diseases of man and animals. The names of the diseases are named after the affected organs, causal agents, discoverers, localities of occurrence etc.

  • Yeast takes part in the alcoholic fermentation of sugar molasses to alcohol and carbon dioxide.
  • Along with bacteria,  the yeast gives characteristic flavour in coca beans.
  • Some yeast cells are used in the treatment of skin diseases.
  • Agaricus compestris, Amanita vaginata are used as nutrient rich food.
  • Agaricus compestris, Amanita vaginata are used as nutrient rich food.
  • A variety of fungi causes several diseases of man and animals.
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