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The Pichia pastoris enzyme production platform:From combinatorial library screening to bench-top fermentation on residual cyanobacterial biomass

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Journal of Bioresources and Bioproducts 2024年第1期9卷 43-57页

作者： Korbinian Sinzinger Ulrike Obst Samed Güner Manuel Döring Magdalena Haslbeck Doris Schieder Volker Sieber chair of chemistry of biogenic resources Campus Straubing for Biotechnology and SustainabilityTechnical University of MunichStraubing 94315Germany Catalysis Research Center Technical University of MunichGarching 85748Germany SynBiofoundry@TUM Technical University of MunichStraubing 94315Germany School of chemistry and Molecular Biosciences The University of QueenslandSt.Lucia 4072Australia

The demand for industrial enzymes is continually rising,fueled by the growing need to shift towards more sustainable industrial ***,making efficient enzyme production strains and identifying optimal enzyme expression conditions remains a ***,the production of the enzymes themselves comes with unavoidable impacts,e.g.,the need to utilize secondary ***,we take a more holistic view of bioprocess development and report an integrative approach that allows us to rapidly identify improved enzyme expression and secretion conditions and make use of cyanobacterial waste biomass as feed for supporting Pichia pastoris *** demonstrate these capabilities by producing a phytase secreted by *** that is grown on cyanobacterium hydrolysate and buffered glycerol-complex(BMGY)medium,with genetic expression conditions identified by high-throughput screening of a randomized se-cretion *** our best-performing strain is grown in a fed-batch fermentation on BMGY,we reach over 7000 U/mL in three days.

关键词： Protein secretion Phytase Cyanobacterial biomass Fed-batch fermentation Pichia pastoris

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Microalgae contribution in enhancing the circular economy drive of biochemical conversion systems-A review

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Carbon resources Conversion 2024年第2期7卷 95-109页

作者： Kelechi E.Anyaoha Felix Krujatz Isla Hodgkinson Roman Maletz Christina Dornack Technische Universität Dresden Chair of Waste Management and Circular EconomyPratzschwitzer Str.1501796 PirnaGermany Institute of Natural Materials Technology RadebergGermany Biotopa gGmbH Center for Applied Aquaculture and Bioeconomy RadebergGermany Department of Agricultural Engineering Imo State Polytechnic OmumaNigeria

The global impact of greenhouse gas emissions requires concerted efforts to reduce emissions and energy use,and to increase carbon capture and *** the circular economy in CO_(2)sequestration systems optimises resource use and reduces the emissions burden throughout the supply *** capture from anaerobic digestion,composting and fermentation(particularly ethanol)processes offers great opportunities for climate change *** waste/by-products generated from these processes can limit the need to source nutrients from outside the system and increase the potential for circular *** integration of microalgae cultivation with each of anaerobic digestion,composting and ethanol fermentation processes provides a new model for climate change mitigation of biogenic CO_(2)and circular *** this model is limited by high energy consumption and nutrient demand,seasonal variability,operational efficiency and end-user requirements,further research and policy support will go a long way in realising the associated benefits,including in CO_(2)fixation,nutrient recovery,waste remediation and as an alternative source of animal feed.

关键词： Circular economy Anaerobic digestion Composting Microalgae

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