Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study

The objective of this work was to study the efficiency of different autolysis processes, combining different temperatures and pH conditions, when applied to a genetically engineered yeast residue. The determination of the supernatants’ dry weight showed that the autolysis time could be reduced to ha...

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Main Authors: Joana F. Fundo, Teresa Deuchande, Daniela A. Rodrigues, Lígia L. Pimentel, Susana S. M. P. Vidigal, Luís M. Rodríguez-Alcalá, Manuela E. Pintado, Ana L. Amaro
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Fermentation
Subjects:
Online Access:https://www.mdpi.com/2311-5637/9/7/673
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author Joana F. Fundo
Teresa Deuchande
Daniela A. Rodrigues
Lígia L. Pimentel
Susana S. M. P. Vidigal
Luís M. Rodríguez-Alcalá
Manuela E. Pintado
Ana L. Amaro
author_facet Joana F. Fundo
Teresa Deuchande
Daniela A. Rodrigues
Lígia L. Pimentel
Susana S. M. P. Vidigal
Luís M. Rodríguez-Alcalá
Manuela E. Pintado
Ana L. Amaro
author_sort Joana F. Fundo
collection DOAJ
description The objective of this work was to study the efficiency of different autolysis processes, combining different temperatures and pH conditions, when applied to a genetically engineered yeast residue. The determination of the supernatants’ dry weight showed that the autolysis time could be reduced to half, from 4 to 2 h, if the residue pH was increased from 5 to 8 at 50 °C (18.20% for 4 h and 18.70% for 2 h with a higher pH). This result allowed us to select a short autolysis time to proceed with the second part of the experiments. The application of this faster induced autolysis process enabled us to obtain supernatants with higher concentrations of relevant compounds, such as some amino acids and minerals. An increase in leucine (of around 7%), aspartic acid, valine, phenylalanine, isoleucine and serine (approximately 2%) was observed in the autolyzed samples, when compared to the untreated ones. Also, regarding minerals, the autolysis process allowed us to obtain significantly higher amounts of potassium in the treated samples’ supernatants. This work allowed the selection of a fast and low-cost induced autolysis process for synthetic biotechnology-derived spent yeast residue to attain a product rich in high-value compounds, which can be used in commercial applications, for example, as an animal feed additive.
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spelling doaj.art-f7869a29d10b4da39e9a39e2b856b3d92023-11-18T19:16:48ZengMDPI AGFermentation2311-56372023-07-019767310.3390/fermentation9070673Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case StudyJoana F. Fundo0Teresa Deuchande1Daniela A. Rodrigues2Lígia L. Pimentel3Susana S. M. P. Vidigal4Luís M. Rodríguez-Alcalá5Manuela E. Pintado6Ana L. Amaro7CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalCBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, PortugalThe objective of this work was to study the efficiency of different autolysis processes, combining different temperatures and pH conditions, when applied to a genetically engineered yeast residue. The determination of the supernatants’ dry weight showed that the autolysis time could be reduced to half, from 4 to 2 h, if the residue pH was increased from 5 to 8 at 50 °C (18.20% for 4 h and 18.70% for 2 h with a higher pH). This result allowed us to select a short autolysis time to proceed with the second part of the experiments. The application of this faster induced autolysis process enabled us to obtain supernatants with higher concentrations of relevant compounds, such as some amino acids and minerals. An increase in leucine (of around 7%), aspartic acid, valine, phenylalanine, isoleucine and serine (approximately 2%) was observed in the autolyzed samples, when compared to the untreated ones. Also, regarding minerals, the autolysis process allowed us to obtain significantly higher amounts of potassium in the treated samples’ supernatants. This work allowed the selection of a fast and low-cost induced autolysis process for synthetic biotechnology-derived spent yeast residue to attain a product rich in high-value compounds, which can be used in commercial applications, for example, as an animal feed additive.https://www.mdpi.com/2311-5637/9/7/673synthetic biotechnologyspent yeast residuenutrient sourceautolysisphysicochemical compositionanimal feed
spellingShingle Joana F. Fundo
Teresa Deuchande
Daniela A. Rodrigues
Lígia L. Pimentel
Susana S. M. P. Vidigal
Luís M. Rodríguez-Alcalá
Manuela E. Pintado
Ana L. Amaro
Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study
Fermentation
synthetic biotechnology
spent yeast residue
nutrient source
autolysis
physicochemical composition
animal feed
title Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study
title_full Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study
title_fullStr Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study
title_full_unstemmed Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study
title_short Induced Autolysis of Engineered Yeast Residue as a Means to Simplify Downstream Processing for Valorization—A Case Study
title_sort induced autolysis of engineered yeast residue as a means to simplify downstream processing for valorization a case study
topic synthetic biotechnology
spent yeast residue
nutrient source
autolysis
physicochemical composition
animal feed
url https://www.mdpi.com/2311-5637/9/7/673
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