Thursday 30 April 2020
Discuss the various ways in which anaerobic respiration is utilized in industries and homes
Bread making; yeast is used to ferment sugar in
wheat flour into carbon (IV) oxide and energy; the carbon (IV) oxide is
produced in form of bubbles that causes the dough to rise and become porous;
Beer making; yeast is used to ferment sugars in malt/grapes/fruits; to form
beer, wines and spirits; Sewage treatment; anaerobes break down raw sewage and
harmful industrial effluents; to harmless products of water, energy/heat and
carbon (IV) oxide; Silage formation; vegetation is fermented by bacteria to
produce nutritious and good-scented/flavoured animal feed that increases
production/yields; Production of acids and strong liquors; special bacteria and
fungi ferment food products; to produce acids such as citric acid, oxalic acid
and vinegar; the products are used as food preservatives and flavouring agents;
Manufacture of dairy products; under controlled environments; anaerobes help in
fermentation hence manufacture of milk products such as butter, cheese, ghee
and yorghurt; Production of fuels such as biogas; and gasohol; cane sugar is
fermented by yeast; to produce gasohol for running engines or operating
machinery; animal wastes such as guano and cow dung; can be used to produce a
mixture of methane and carbon (IV) oxide gas; by exposing it to fermentation
agents; methane is used to run simple machines such as water pumps and for
cooking; Production of fermented porridge and milk; maize or wheat flour and
milk is exposed to microbes in the air which ferment it; to produce sour and
sweet tasting porridge or milk;
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