Advances in biochemical engineering/biotechnology最新文献

{"title":"Microbial Electrochemical Technologies: Sustainable Solutions for Addressing Environmental Challenges.","authors":"Laura Rovira-Alsina, Meritxell Romans-Casas, Elisabet Perona-Vico, Alba Ceballos-Escalera, M Dolors Balaguer, Lluís Bañeras, Sebastià Puig","doi":"10.1007/10_2024_273","DOIUrl":"https://doi.org/10.1007/10_2024_273","url":null,"abstract":"<p><p>Addressing global challenges of waste management demands innovative approaches to turn biowaste into valuable resources. This chapter explores the potential of microbial electrochemical technologies (METs) as an alternative opportunity for biowaste valorisation and resource recovery due to their potential to address limitations associated with traditional methods. METs leverage microbial-driven oxidation and reduction reactions, enabling the conversion of different feedstocks into energy or value-added products. Their versatility spans across gas, food, water and soil streams, offering multiple solutions at different technological readiness levels to advance several sustainable development goals (SDGs) set out in the 2030 Agenda. By critically examining recent studies, this chapter uncovers challenges, optimisation strategies, and future research directions for real-world MET implementations. The integration of economic perspectives with technological developments provides a comprehensive understanding of the opportunities and demands associated with METs in advancing the circular economy agenda, emphasising their pivotal role in waste minimisation, resource efficiency promotion, and closed-loop system renovation.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agricultural Wastes to Value-Added Products: Economic and Environmental Perspectives for Waste Conversion.","authors":"Stephen Oyedeji, Nikita Patel, Ramar Krishnamurthy, Paul Ojo Fatoba","doi":"10.1007/10_2024_274","DOIUrl":"https://doi.org/10.1007/10_2024_274","url":null,"abstract":"<p><p>The conversion of agricultural wastes to value-added products has emerged as a pivotal strategy in fostering economic transformation. This chapter explores the transformative potential of converting agricultural residues into valued commodities that contribute to sustainability and economic growth. Agricultural wastes, often considered environmental liabilities, possess untapped benefits with great economic value. By employing innovative technologies, these wastes can be converted into a range of value-added products, such as substrates for agricultural production, biofuels, organic fertilizers, natural dyes, pharmaceuticals, and packaging materials. This approach not only mitigates the environmental impact of waste disposal but also provides new revenue streams for farmers, entrepreneurs and governments. In the economic landscape, the creation of value-added products from agricultural wastes serves as a catalyst for job creation, income generation, and rural development. Additionally, the development of a value chain around agricultural waste-derived products strengthens the resilience of the agricultural sector while diversifying the sources of income for farmers and reducing their dependence on major crops as income source. It also fosters innovation by encouraging the development of new technologies and industrial processes for efficient waste utilization and creation of novel products with diverse applications. From the environmental perspective, the conversion of agricultural waste to valuable products reduces environmental pollution, mitigates climate change, and improves the quality of life. The production of biofuels from agricultural residues has the potential to address energy security concerns, provide alternative and renewable energy sources, and allow for energy sufficiency. This chapter exposes the hidden economic potentials in agricultural wastes for farmers, entrepreneurs, policymakers, and government to explore. The transformation of agricultural wastes into value-added products if fully harnessed will play a critical role in the economic transformation of many nations across the globe while addressing the environmental challenges that come with waste management and industrialization.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of Novel Energy Gases in Bioprocesses Using Undefined Mixed Cultures.","authors":"Elias Hakalehto, Ari Jääskeläinen","doi":"10.1007/10_2024_267","DOIUrl":"https://doi.org/10.1007/10_2024_267","url":null,"abstract":"&lt;p&gt;&lt;p&gt;Three phases of matter intermingle in various environments. The phenomena behind these fluctuations provide microbial cultures with beneficial interphase on the borderlines. Correspondingly, a bioreactor broth usually consists of a liquid phase but also contains solid particles, gas bubbles, technical surfaces, and other niches, both on a visible scale and microscopically. The diffusion limitation in the suspension is a remarkable hindrance to the reaction sequence during production. It must be overcome technically. Gas flow into the reactor could serve this purpose, and the outgoing stream or bubbling contains volatile products. The various mixing elements or gas flows should be moderated if shear forces disturb the cell growth, biochemical production, enzymatic activity, or any other crucial biological or physicochemical parameters. The focus is to optimize energy production in the form of liberated gases or their mixtures. Many combustible flows need to get purified, depending on their purpose, for example, for various engines. They provide novel sources for traffic in the air, streets, roads, and waterways, not forgetting space technology dimensions.On the other hand, industrial fuels are often used as mixtures of gases or gases with other substances. This approach may facilitate the utilization of side streams. Also, municipal energy needs can be fulfilled by microbial gases. Microbial mixed cultures could play an essential role in the big picture of sustainable industries, living and agriculture, exhibiting an excessive total effect on societies' multifactorial development. The gas phase is the key to realizing their potential.Gaseous emissions are inherent part of all forms of microbial metabolism, both aerobic and anoxic ones. Carbon dioxide is liberated both in respiration and fermentation, but the microbiota also binds volatile carbon compounds. CO2 is also a raw material for plant cultivation, e.g., in greenhouses or in algal pools which both represent the first steps of food chains. Additionally, they produce biomass to produce energy, biochemicals, nutrition, and soil improvement. Gaseous products of the mixed microbial cultures are valuable sources for energy production as purified gases (e.g., biomethane, biohydrogen) or as mixtures (e.g., bio-hythane, volatiles). These relatively simple molecules also serve as supplies for other hydrocarbons (e.g., methanol). Also, many microbial metabolites serve as fuel sources (e.g., bio-oil) and substrates for further biosynthesis. This versatility of potential technological options in energy making and for industrial processes could offer huge opportunities for green energies and sustainable industries, transportation, or municipalities. In the agriculture sector, the complete recycling also includes the consideration of gas phase. This aspect provides increasing sources for clean food production. Moreover, the chemoautotrophic bacteria, including the archaeal strains, could emanate nov","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Food and Forest Industry Waste Reuse Using Mixed Microflora.","authors":"Elias Hakalehto, Anneli Heitto, Frank Adusei-Mensah, Ari Jääskeläinen, Reino Laatikainen, Jukka Kivelä, Erik Dahlquist, Jaan den Boer, Emilia den Boer","doi":"10.1007/10_2024_268","DOIUrl":"https://doi.org/10.1007/10_2024_268","url":null,"abstract":"<p><p>Organic raw materials are the renewable sources of substrates for our industries and for our microbial communities. As industrial, agricultural or forestry side streams, they are usually affordable if the process entities, equipment and protocols are properly designed. The microbial communities that are used as biocatalysts take care of the process development together with us or with the process team. Moreover, they constitute or shape the process to resemble the natural bioprocess as it takes place or occurs in nature and thus make it \"Industry Like Nature®\" - type of endeavor. As an ultimate result, we could make our industries increasingly 100% sustainable with the help of microbes. In case of food or forest industry side streams, this means fossil-free production of valuable chemicals, food and feed components, energy and gases, and soil improvement or organic fertilizers. The so-called \"Finnoflag biorefinery\" idea has been tested in many cases together with domestic and international colleagues and industries. In here, we attempt to share the basic thinking.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction to the Use of Microbial Communities.","authors":"Elias Hakalehto","doi":"10.1007/10_2024_265","DOIUrl":"https://doi.org/10.1007/10_2024_265","url":null,"abstract":"<p><p>Microbes are the third major group of biospheric organisms after plants and animals. They are responsible for many natural circulations, including the rotation of elements. They return organic carbon for plants' use and dissolve minerals into organic cycles. Microbes contribute to the global gas and water balances. In animal digestion, they partake in the degradation and assimilation of nutrients. Typically, they act as communities where some strains are the most active at a given time point in the prevailing conditions. But they also live in a continuous state of succession, which precludes the maintenance of changeable balances. Whether functioning in soil, in our alimentary tract, or elsewhere, the micro-organisms decisively contribute to the restoration of various balances. As the microbiological scale differs significantly from our comprehension, we must nurture our understanding of the microbiome wherever it occurs. For example, one spoonful of yoghurt contains approximately as many bacterial cells as there are humans residing on Earth. Therefore, such organizational flexibility and interaction are the most advisable modes of operation in microbial biochemistry and biotechnological applications. As microbes tend to form communities, this modus operandi is worth instigating in our process industries and production technologies. The use of microbial mixed cultures most appropriately corresponds to the natural systems. As biocatalysts in human endeavours of biorefining and bioengineering, they have become the most utilizable and producible kind of microbial components. Cooperation with microbes is a prerequisite for the continuous development of sustainable industries and food and health production. The microbial communities can be used to prevent and clean up pollution. In the process design, the microbiological dynamic balances make the highest productivity, repeatability, controllability, and withstanding of entropy. Although their effects have been familiar to our societies, e.g. in the fermentation of foods, their total capacity remains to be put into service. Hopefully, this book could help turn the next page in the development.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Upgrading of Products from Finnoflag Bio-refinery Pilot in Tampere.","authors":"Erik Dahlquist, Eva Thorin, Aubrey Shenk, Sebastian Schwede, Chaudhary Awais Salman, Elias Hakalehto","doi":"10.1007/10_2024_261","DOIUrl":"https://doi.org/10.1007/10_2024_261","url":null,"abstract":"<p><p>In this study calculation over material and energy balances for bio-refinery product upgrading using membrane filtration (MF, UF, and RO), distillation, and ion-exchanger has been performed. Tests have been made with UF filtration in a pilot plant, separation tests made at lab with ion-exchanger and simulation using ASPEN plus simulator for distillation. Rough economic analysis has been made for the different solutions/techniques.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mixed Strain Fermentation and Metabonomics for Solving Issues of Bioproduction.","authors":"Elias Hakalehto, Reino Laatikainen, Jouni Pesola, Erik Dahlquist, Jeremy Everett","doi":"10.1007/10_2024_266","DOIUrl":"https://doi.org/10.1007/10_2024_266","url":null,"abstract":"<p><p>In the research of mixed microbial cultures, the numbers and identifications of individual strains are often fully or partially unknown. Their metabolic capabilities are also partially unpredictable, especially if the joint potential is to be understood. In these kinds of situations, deeper insight into the variable microbial communities cannot be obtained by genetic analysis only. Even more critical than the taxonomic aspect is usually the functional metabolic outcome of the mixed flora in question. The results from such studies as NMR (nucleic magnetic resonance) give a precise view from versatile angles into the biochemical activities during the multiparametric metabolic responses of the microflora as a whole.Originally, metabonomics was mainly used for the pathophysiological research of various microbes or for recording the genetic or biochemical modifications of mixed microflora. This approach offers a tool for monitoring changes in microscopic or otherwise confined ecosystems or multiple locations from which representative specimens are difficult to obtain. In microbiological studies, the research group can attain overall views on variable populations and their alterations in time and space.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous CO2 Absorption from a Power Plant and Wastewater Treatment.","authors":"Erik Dahlquist, Sebastian Schwede, Eva Thorin","doi":"10.1007/10_2024_260","DOIUrl":"https://doi.org/10.1007/10_2024_260","url":null,"abstract":"<p><p>There is a demand to remove CO2 from thermal plants to abate global warming. At the same time authorities demand treating wastewater to remove nitrogen and phosphorus and also to produce food. By combining algae farming at a power plant and using nutrients from the wastewater, actions to meet all these demands can be combined to a win-win situation. In this paper we make estimates what the dimensions and design criteria there would be for such an integrated system. The size of the algae farm will be significant. If placed in the sea, this may be feasible, but then storms must be considered. If we place in lakes, it is more competition for other uses that causes a problem. Combining with also greenhouses may be a possible solution. The biomass produced can be used directly as food or be processed by, e.g., fermentation to produce chemicals and methane (biogas).</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microbial Biorefinery Education for Professionals.","authors":"Ari Jääskeläinen, Elias Hakalehto","doi":"10.1007/10_2024_259","DOIUrl":"https://doi.org/10.1007/10_2024_259","url":null,"abstract":"<p><p>In a microbiological biorefinery, microbial strains and communities, and their enzymes are used in processing side-streams into valuable products. Engineering and manufacturing of the related bioreactors and other equipment is crucial. Production processes should be engineered in a seamless collaboration, so that the equipment is optimally supporting the biorefining. In this chapter, various ways for educating microbiological biorefinery principles and operation for professionals are presented. In the recent years, this has taken place in classroom as well as hands-on, e.g., in biorefineries, laboratories and purification plants.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shewanella oneidensis: Biotechnological Application of Metal-Reducing Bacteria.","authors":"Lukas Kneuer, René Wurst, Johannes Gescher","doi":"10.1007/10_2024_272","DOIUrl":"https://doi.org/10.1007/10_2024_272","url":null,"abstract":"<p><p>What is an unconventional organism in biotechnology? The γ-proteobacterium Shewanella oneidensis might fall into this category as it was initially established as a laboratory model organism for a process that was not seen as potentially interesting for biotechnology. The reduction of solid-state extracellular electron acceptors such as iron and manganese oxides is highly relevant for many biogeochemical cycles, although it turned out in recent years to be quite relevant for many potential biotechnological applications as well. Applications started with the production of nanoparticles and dramatically increased after understanding that electrodes in bioelectrochemical systems can also be used by these organisms. From the potential production of current and hydrogen in these systems and the development of biosensors, the field expanded to anode-assisted fermentations enabling fermentation reactions that were - so far - dependent on oxygen as an electron acceptor. Now the field expands further to cathode-dependent production routines. As a side product to all these application endeavors, S. oneidensis was understood more and more, and our understanding and genetic repertoire is at eye level to E. coli. Corresponding to this line of thought, this chapter will first summarize the available arsenal of tools in molecular biology that was established for working with the organism and thereafter describe so far established directions of application. Last but not least, we will highlight potential future directions of work with the unconventional model organism S. oneidensis.</p>","PeriodicalId":7198,"journal":{"name":"Advances in biochemical engineering/biotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142695184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}