Journal
NEW BIOTECHNOLOGY
Volume 78, Issue -, Pages 105-115Publisher
ELSEVIER
DOI: 10.1016/j.nbt.2023.10.005
Keywords
Debaryomyces hansenii; Non -conventional yeasts; Industrial waste; Fermentation; Salt tolerance; Green transition
Ask authors/readers for more resources
The halotolerant non-conventional yeast Debaryomyces hansenii has the ability to grow in high salt concentrations, metabolize alternative carbon sources, and withstand different temperatures and pH levels. This yeast can be used to revalue industrial salty by-products and contribute to a circular economy. Experimental results showed that D. hansenii can efficiently grow in different salty by-products and produce recombinant proteins without the need for sterile conditions or additional nutrients, making the process cost-effective and sustainable.
The halotolerant non-conventional yeast Debaryomyces hansenii can grow in media containing high concentrations of salt (up to 4 M), metabolize alternative carbon sources than glucose, such as lactose or glycerol, and withstand a wide range of temperatures and pH. These inherent capabilities allow this yeast to grow in harsh environments and use alternative feedstock than traditional commercial media. For example, D. hansenii could be a potential cell factory for revalorizing industrial salty by-products, using them as a substrate for producing new valuable bioproducts, boosting a circular economy. In this work, three different salty by-products derived from the dairy and biopharmaceutical industry have been tested as a possible feedstock for D. hansenii's growth. The yeast was not only able to grow efficiently in all of them but also to produce a recombinant protein (Yellow Fluorescent Protein, used as a model) without altering its performance. Moreover, open cultivations at different laboratory scales (1.5 mL and 1 L) were performed under non-sterile conditions and without adding fresh water or any nutritional supplement to the cultivation, making the process cheaper and more sustainable.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available