<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The yeast strain <italic>Yarrowia lipolytica</italic> IPS 21 was tested for its ability to produce the protease enzyme on analytically pure carbon sources as well as on waste carbon sources. It was confirmed that the yeast <italic>Y. lipolytica</italic> IPS21 can have a higher proteolytic activity in the presence of waste carbon sources in chrome-tanned leather shavings (CTLS) than on yeast extract alone. This is confirmed by the high concentration of amino acids in samples with CTLS, suggesting increased degradation of CTLS by <italic>Y. lipolytica</italic> or secretion of proteases into the medium. It was also confirmed that metals accumulate mainly in the biomass and not in the supernatant. The biomass was also found to contain high levels of Ca, K and P, which are essential for plant growth. These results show that <italic>Y. lipolytica</italic> strain IPS21 can be used for the production of extracellular alkaline proteases and for the degradation of protein waste.</p>
</abstract>

The yeast strain Yarrowia lipolytica IPS 21 was tested for its ability to produce the protease enzyme on analytically pure carbon sources as well as on waste carbon sources. It was confirmed that the yeast Y. lipolytica IPS21 can have a higher proteolytic activity in the presence of waste carbon sources in chrome-tanned leather shavings (CTLS) than on yeast extract alone. This is confirmed by the high concentration of amino acids in samples with CTLS, suggesting increased degradation of CTLS by Y. lipolytica or secretion of proteases into the medium. It was also confirmed that metals accumulate mainly in the biomass and not in the supernatant. The biomass was also found to contain high levels of Ca, K and P, which are essential for plant growth. These results show that Y. lipolytica strain IPS21 can be used for the production of extracellular alkaline proteases and for the degradation of protein waste.

Extracellular activity of proteases from <italic>Yarrowia lipolytica</italic> IPS21 as a function of the carbon and nitrogen source

Fibres & Textiles in Eastern Europe

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Extracellular activity of proteases from  IPS21 as a function of the carbon and nitrogen source

The yeast strain Yarrowia lipolytica IPS 21 was tested for its ability to produce the protease enzyme on analytically pure carbon sources as well as on waste...

Extracellular activity of proteases from Yarrowia lipolytica IPS21 as a function of the carbon and nitrogen source

Article Category: Research Article

Pubblicato online: 01 dic 2023

Pagine: 66 - 74

DOI: https://doi.org/10.2478/ftee-2023-0046

Parole chiave
biopolymers, carbon source, waste, modification of materials

© 2023 Łukasiewicz Research Network-Łódź Institute of Technology, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Extracellular activity of proteases from Yarrowia lipolytica IPS21 as a function of the carbon and nitrogen source

Article Category: Research Article

Pubblicato online: 01 dic 2023

Pagine: 66 - 74

DOI: https://doi.org/10.2478/ftee-2023-0046

Parole chiavebiopolymers, carbon source, waste, modification of materials

© 2023 Łukasiewicz Research Network-Łódź Institute of Technology, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
biopolymers, carbon source, waste, modification of materials