Objective: To develop and prototype a high-throughput microplate assay to assess anaerobic microorganisms and lignocellulosic biomasses in a rapid, cost-effective screen for consolidated bioprocessing potential.
Results: Clostridium thermocellum parent Δhpt strain deconstructed Avicel to cellobiose, glucose, and generated lactic acid, formic acid, acetic acid and ethanol as fermentation products in titers and ratios similar to larger scale fermentations confirming the suitability of a plate-based method for C. thermocellum growth studies. C. thermocellum strain LL1210, with gene deletions in the key central metabolic pathways, produced higher ethanol titers in the Consolidated Bioprocessing (CBP) plate assay for both Avicel and switchgrass fermentations when compared to the Δhpt strain.
Conclusion: A prototype microplate assay system is developed that will facilitate high-throughput bioprospecting for new lignocellulosic biomass types, genetic variants and new microbial strains for bioethanol production.
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http://dx.doi.org/10.1007/s10529-017-2467-2 | DOI Listing |
Anal Biochem
January 2025
Biotecnología Industrial, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, CIATEJ, 45019, Zapopan, Jalisco, Mexico. Electronic address:
In this study, we propose a continuous assay that provides a high-throughput, efficient method for screening the regioselectivity of lipases at the sn-1,3 and sn-2 positions on triacylglycerols (TAGs). This assay measures the specific hydrolysis rates at the primary and secondary positions of TAGs derivates containing oleic (O) and punicic (P) acids. The method is based on the absorbance ratio of released punicic acid from the hydrolysis of sn-POP (sn-1,3 regiospecific lipases) and sn-OPO (sn-2 regiospecific lipases).
View Article and Find Full Text PDFBio Protoc
January 2025
Glycometabolic Biochemistry Laboratory, RIKEN Cluster for Pioneering Research, Riken, 2-1 Hirosawa, Wako Saitama, Japan.
Cytosolic peptide:-glycanase (PNGase/NGLY1 in mammals), an amidase classified under EC:3.5.1.
View Article and Find Full Text PDFMethods
January 2025
CEB - Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal; LABBELS - Associate Laboratory, University of Minho, Braga/Guimarães, Portugal. Electronic address:
Measurements of changes in fluorescence signal is one of the most commonly applied methods for studying protein-ligand affinities. These measurements are generally carried out using cuvettes in spectrofluorometers, which can only measure one sample at a time. This makes screening procedures for multiple ligands and proteins extremely laborious, as each protein must be measured with multiple ligand concentrations, and usually in triplicate.
View Article and Find Full Text PDFJ Clin Med
January 2025
Department of Oral and Maxillofacial Surgery, University of Marburg, Baldingerstrasse, D-35043 Marburg, Germany.
During the routine removal of osteosynthesis materials after surgical treatment (ORIF) of condylar head fractures (CHFs), as performed at our clinic, localised and sometimes pronounced intra-articular scarring were observed quite regularly. This prospective study therefore investigates the causes of intra-articular scarring and its impact on functionality after surgical treatment (ORIF) of condylar head fractures (CHFs). Moreover, 80/98 patients with 96/114 CHFs (ORIF between 2014 and 2024) were evaluated when performing hardware removal.
View Article and Find Full Text PDFVet Microbiol
January 2025
Department of Biotechnology and Food Microbiology, Faculty of Biotechnology and Food Sciences, Wrocław University of Environmental and Life Sciences, Poland. Electronic address:
Avian pathogenic Escherichia coli (APEC) is a principal etiologic agent of avian colibacillosis, responsible for significant economic losses in the poultry industry due to high mortality and disease treatment with antibiotics. APEC and its ability to form biofilms on food and processing surfaces contributes to its persistence within farms. Bacteriophages are promising antibacterial agents for combating APEC.
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