Notes, Exercises, Videos, Tests and Things to Remember on Economic Importance of Yeast
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Yeast exhibits both beneficial and harmful activities to human beings.
It also posses both useful and harmful activities to the human beings.
Agaricus composters, Amanita vaginata are used as nutrient-rich food.
Used in baking industries, brewing industries:
Saccharomyces cerevisiae is used in baking industries for making the bread soft and in making alcohol.
Saccharomyces cerevisiae is used for the production of Invertase zymase.
Aspergillus niger? Protease, Amylase
Penicillium notatum? Penicillin
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.
Some fungi like Neurospora are exclusively used in different genetical studies.
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.
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.