Abstract

In recent years, the awareness and willingness of consumers to consume healthy food has grown significantly. In order to meet these needs, scientists are looking for innovative methods of food production, which is a source of easily digestible protein with a balanced amino acid composition. Yeast protein biomass (single cell protein, SCP) is a bioavailable product which is obtained when primarily using as a culture medium inexpensive various waste substrates including agricultural and industrial wastes. With the growing population, yeast protein seems to be an attractive alternative to traditional protein sources such as plants and meat. Moreover, yeast protein biomass also contains trace minerals and vitamins including B-group. Thus, using yeast in the production of protein provides both valuable nutrients and enhances purification of wastes. In conclusion, nutritional yeast protein biomass may be the best option for human and animal nutrition with a low environmental footprint. The rapidly evolving SCP production technology and discoveries from the world of biotechnology can make a huge difference in the future for the key improvement of hunger problems and the possibility of improving world food security. On the market of growing demand for cheap and environmentally clean SCP protein with practically unlimited scale of production, it may soon become one of the ingredients of our food. The review article presents the possibilities of protein production by yeast groups with the use of various substrates as well as the safety of yeast protein used as food.

Highlights

  • With the global human population explosion, the demand for food increases rapidly, especially for protein products

  • The yeast biomass or extract are an excellent source of B vitamins which are recommended for people with increased vitamin B requirements such as adolescents, convalescents, and individuals with high physical activity [110,111,112]

  • The yeast protein can be added as an inexpensive supplement to the regular human diet, helping to solve the problem of protein/food deficiency throughout the world, and as animal feed

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Summary

Introduction

With the global human population explosion, the demand for food increases rapidly, especially for protein products. Obtaining microbial protein by conversion of waste substrates to value-added feed and food as high nutritional protein biomass and reduction of environmental pollutions is very important valuable feature of SCP production [14]. One of the methods of getting rid of oily waste products after processing petroleum is its use as a culture medium for the production of added value compounds, such as protein, by yeast that can utilize these wastes [18,24,25] Both food grade or industrial wastes as well as forestry and agricultural sources are available and low- or even free-cost substrates as carbon and energy sources for SCP production by yeast [7,11,17,18,26,27,28,29]

Production
Production of Yeast SCP from Specific Waste Substrates
Saccharomyces cerevisiae
Yarrowia lipolytica
Other Species of Yeasts
Nutritional Benefits of Yeast Protein
Safety of Yeast Protein Used as Food
Findings
Conclusions
Full Text
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