Although, there is a global shortage of protein, the shortage is in developing countries which cannot afford this technology.
There are several advantages in using microorganisms as a food source. They occupy less room then conventional crops and animals; therefore they can grow on a wide range of cheap or waste products of agriculture and industry. They grow much more rapidly, are more easily modified by genetic engineering and so have relatively high protein content. They are independent of climate and do not occupy the large areas of land. There also are fewer ethical issues associated with there exploitation and no animal rights issues.
There are different uses of yeast and fungi; like it can produce dietary supplements known as single cell protein (SCP). Yeast species are efficient in producing large amounts of different types of vitamins and is also used in the commercial production of that vitamin. Other species like yeasts can also be utilized in brewing, which can absorb as well as store vitamins from their food. It is healthy for people to take yeasts as vitamin supplements. Yeast fungi can also produce huge amount of useful stuff such as numerous enzymes, industrial alcohol, glycerol and fat. The yeasts are also helpful in commercial production of these substances.
The Single Cell Protein (SCP) is produced by using bacteria, fungi, yeast or algae. ...