Conclusions
Present study was aimed to produce a high quantity of zinc-enriched
yeast biomass in the presence of zinc metal using S. cerevisiaeas an industrially important yeast strain. The optimum zinc
concentration in the culture medium and its effect on the yeast growth
rate and zinc content in yeast biomass was determined. Our investigation
appeared that S. cerevisiae biomass and protein production value
under optimal conditions was similar to other studies. Importantly,S. cerevisiae is a promising candidate for SCP production because
it has beneficial functional properties; such as high potential for
biotechnological and especially food-related applications as well as
ability to produce high amounts of protein content (around 50 w/w %).
In summary, our study demonstrated the possibility of upgrading low
value industrial effluents to SCP that can be used as a high-quality
feed ingredient. Nevertheless, further research is required to develop
an economically SCP process and introduce feed ingredients based on
industrial side streams as substrates.