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Pulsed electric field based cyclic protein extraction of microalgae towards closed-loop biorefinery concepts.
Bioresour Technol. 2019 Nov; 291:121870.BT

Abstract

Microalgae-based biorefinery concepts can contribute to providing sufficient resources for a growing world population. However, the performance needs to be improved, which requires innovative technologies and processes. Continuous extraction from Chlorella vulgaris cultures via pulsed electric field (PEF) processing might be a viable process to increase the performance of microalgae-based biorefinery concepts. In this study, increasing protein extraction rates were observed with increasing electric field strength, up to 96.6 ± 4.8% of the free protein in the microalgae. However, increased extraction rates negatively influenced microalgae growth after PEF treatment. A free protein extraction rate up to 29.1 ± 1.1% without a significant influence on microalgal growth after 168 h was achieved (p = 0.788). Within the scope of this work, a protocol for continuous protein extraction during microalgae cultivation by PEF processing was developed. The incorporation of innovative downstream into upstream processing could be a viable future concept.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Buchmann L
ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland.
Brändle I
ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland.
Haberkorn I
ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland.
Hiestand M
ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland.
Mathys A
ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland. Electronic address: Alexander.Mathys@hest.ethz.ch.

MeSH

Chlorella vulgarisElectricityMicroalgae

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31382092

Citation

Buchmann, Leandro, et al. "Pulsed Electric Field Based Cyclic Protein Extraction of Microalgae Towards Closed-loop Biorefinery Concepts." Bioresource Technology, vol. 291, 2019, p. 121870.
Buchmann L, Brändle I, Haberkorn I, et al. Pulsed electric field based cyclic protein extraction of microalgae towards closed-loop biorefinery concepts. Bioresour Technol. 2019;291:121870.
Buchmann, L., Brändle, I., Haberkorn, I., Hiestand, M., & Mathys, A. (2019). Pulsed electric field based cyclic protein extraction of microalgae towards closed-loop biorefinery concepts. Bioresource Technology, 291, 121870. https://doi.org/10.1016/j.biortech.2019.121870
Buchmann L, et al. Pulsed Electric Field Based Cyclic Protein Extraction of Microalgae Towards Closed-loop Biorefinery Concepts. Bioresour Technol. 2019;291:121870. PubMed PMID: 31382092.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pulsed electric field based cyclic protein extraction of microalgae towards closed-loop biorefinery concepts. AU - Buchmann,Leandro, AU - Brändle,Ivraina, AU - Haberkorn,Iris, AU - Hiestand,Michèle, AU - Mathys,Alexander, Y1 - 2019/07/24/ PY - 2019/06/13/received PY - 2019/07/19/revised PY - 2019/07/22/accepted PY - 2019/8/6/pubmed PY - 2019/8/27/medline PY - 2019/8/6/entrez KW - Closed-loop biorefinery KW - Cyclic protein extraction KW - Microalgae KW - Pulsed electric field KW - Selective extraction SP - 121870 EP - 121870 JF - Bioresource technology JO - Bioresour Technol VL - 291 N2 - Microalgae-based biorefinery concepts can contribute to providing sufficient resources for a growing world population. However, the performance needs to be improved, which requires innovative technologies and processes. Continuous extraction from Chlorella vulgaris cultures via pulsed electric field (PEF) processing might be a viable process to increase the performance of microalgae-based biorefinery concepts. In this study, increasing protein extraction rates were observed with increasing electric field strength, up to 96.6 ± 4.8% of the free protein in the microalgae. However, increased extraction rates negatively influenced microalgae growth after PEF treatment. A free protein extraction rate up to 29.1 ± 1.1% without a significant influence on microalgal growth after 168 h was achieved (p = 0.788). Within the scope of this work, a protocol for continuous protein extraction during microalgae cultivation by PEF processing was developed. The incorporation of innovative downstream into upstream processing could be a viable future concept. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/31382092/Pulsed_electric_field_based_cyclic_protein_extraction_of_microalgae_towards_closed_loop_biorefinery_concepts_ DB - PRIME DP - Unbound Medicine ER -