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    Where we are and we will go

    Author: Otto Pulz, IGV GmbH, Germany

    Description: An overview about research activities in the past and an outlook on future projects in microalgal biotechnology. …

    Photosynthetic Efficiency and Biomass Productivity of Microalgae Mass Cultures

    Author: John Benemann, MicroBio Engineering Inc., USA

    Description: The high capital and operating costs of microalgae cultivation, harvesting and processing require very high productivities, greatly exceeding those of terrestrial crops. The maximum achievable photosynthetic efficiency, and thus biomass productivity, of microalgae cultures has been controversial for nearly a century and is still unresolved, as evidenced from recent peer reviewed literature. …

    Maximal photosynthesic efficiency of microalgae growth

    Author: Marcel Janssen, Wageningen University, The Netherlands

    Description: Large-scale efficient microalgae production processes can provide food and feed additives, biochemicals, and biofuels. Current challenges are both related to up-scaling and cost reduction, as well as breeding and genetic engineering of microalgae production strains. A benchmark of the success of the different approaches is the maximal productivity which can be expected when all biophysical and biochemical processes of photoautotrophic growth run at maximal efficiency. …

    Strong light dilution – a major key for peak photosynthetic efficiency in mass cultivation of microalgae

    Author: Amos Richmond, Emeritus Ben Gurion University, Israel

    Description: Along some 60 years of research in mass cultivation of microalgae , we do not have yet the know-how to produce , cost-effectively , a microalgal commodity ,i.e. an economic alternative for food , feed or fuel . …

    Promising lipid producing microalgal strains in the Mosonmagyarovar Algal Culture Collection

    Author: Vince Ördög, University of West-Hungary, Hungary

    Description: The Mosonmagyaróvár Algal Culture Collection (MACC) is the 5th largest culture collection in Europe with 960 strains (610 Chlorophyta and 350 Cyanophyta). It is an important resource in the research for potential microalgal strains for biodiesel production. Growth and chemical composition of green algal strains were investigated to select the most promising strains, and to further advance our knowledge on lipid production in algal cells. …

    Discovery and development of strains of microalgae for phototrophic biofuels applications

    Author: Jürgen Polle, Brooklyn College of CUNY, USA

    Description: Microalgae belong to very diverse groups of photosynthetic organisms. However, out of thousands of known species of microalgae, still onlya few strains are exploited in mass culture.For development of new strains several major paths can be taken either independently or in conjunction: 1) Discovery of novel strains isolated from natural habitats, 2) selection of existing strains for specific traits, 3) breeding of strains, and/or 4) genetic engineering. …

    A low-cost approach for large algal screening experiments

    Author: Serge Zagermann, Leibniz University Hannover, Germany

    Description: Microalgae are of growing interest for diverse industrial applications due to their manifold metabolic capabilities. Considering the fact, that only a few algal species are used in most of the algae-based bioprocesses, the following question arises: why is this the case?Difficulties lie in the need for characterization of novel organisms and the resulting problems. …

    Cultivation of thermotolerant and thermophilic phototrophic microorganisms in Subitec‘s flat-panel-airlift (FPA) photobioreactor in view towards cost reduction and sustainability enhancement

    Author: Peter Bergmann, Subitec, Germany

    Description: The demand for plant biomass as a consequence of the steadily increasing global population, the trend in food intake towards more protein rich nourishments and the need for next generation biofuel sources mount continuously but the availability of arable land is stagnating or even decreasing due to development and degradation. This trend also goes, next to environmental reasons, hand in hand with a proceeding scarcity of freshwater…

    Biogenic design of a flexible, tubular photobioreactor for the large scale prooduction of microalgae

    Author: Stephan Matthes, Anhalt University of Applied Sciences, Germany

    Description: Microalgae are a natural source containing a tremendous amount of valuable compounds. The production of microalgae at industrial scale is up to now mostly performed in open ponds limiting the use of its products because of high contamination risks. In addition, low biomass productivities and high water losses by evaporation have to be faced with, leading to the need of different ways oflarge scale microalgae production.

    Showcase Calipatria Campus

    Author: Miguel Olaizola, Synthetic Genomics, USA

    Description: Recently, Synthetic Genomics took ownership of a historic algal research facility located near Calipatria, California, in the Southwest United States. The Calipatria Campus is a 32 ha. algal research and production facility located in the low desert area of Imperial County near the Salton Sea. The site has been selected for scale up research of technology developed at small scale at Synthetic Genomics’ La Jolla facilities..

    Light, microalgae and photobioreactors

    Author: Otto Pulz, IGV GmbH, Germany

    Description: Recent developments in mass production of microalgae as phototrophic microorganisms are demonstrated.In recent years there arose an urgent need for new solutions for phototrophic biotechnology out of the development of technologies for carbon capture (CO2) and bioenergy.The most widespread technology for the mass production of microalgae in raceway ponds is with a productivity of 15 – 20 g/m²*d not productive enough to fit in the demands of CO2-emitting companies like power plants….

    Solarbiofuels Research Centre

    Author: Rosa Rosello, KIT Karlsruhe Institute of Technology, Germany

    Description: The rational design of phototrophic bioprocesses is progressing successfully as a result of the existing programs with focus on screening, molecular- and microbiology as well as process engineering. Nevertheless, until now there is not sufficient and reliable data available about long term productivities or direct comparison between different microalgae species and bioreactors, especially for outdoor cultivation conditions. This information gap should be counterbalanced by the SolarBiofuelsResearchCenter in Brisbane.. …

    Design and chracterization of molecular tools for a synthetic biology approach towards developing cyanobacterial biotechnology

    Author: Thorsten Heidorn, Bioforsk, Norway

    Description: Cyanobacteria are suitable for sustainable, solar-powered biotechnological applications. Synthetic biology connects biology with computational design and an engineering perspective, but requires efficient tools and information about the function of biological parts and systems. …

    Optimized Natural Evolution “One” Powerful approach for microorganisms improvement

    Author: Bernard Kudla, Eco-solutions SA, France

    Description:

    Eco-Solution will present its Optimized Natural Evolution (ONE) technology which generates microorganisms variants with greater performances through long-term automated selective cultures. Basis of ONE will be described as well as its major characteristics. Results obtained with microalgae and bacteria for different domains of application will be given. Effectiveness of ONE as a complementary approach of Genetic Engineering and Exploration of Biodiversity will be discussed. …

    Effects of acetate feeding on lipid accumulation and photosynthesis in Chlamydomonas reinhardtii

    Author: Peter Waldeck, IGV GmbH, Germany

    Description: Chlamydomonas can be grown mixotrophically on acetate which is used for the generation of energy equivalents and carbon skeletons for the metabolism of the living cell. Prior to its utilization, acetate is activated to acetyl-CoA by various reactions catalyzed directly by acetyl-CoA synthetase or pyruvate dehydrogenase. …

    Phenolics in microalgae: a forgotten fraction with high antioxidant potential

    Author: Koen Goiris, KAHO Sint-Lieven, Belgium

    Description: Over the last decades, many researchers have acknowledged the antioxidant potential of microalgae. Most of the research on antioxidant properties of microalgae has focused on the carotenoid fraction or on enzymatic antioxidant response. Much less is known about the antioxidant properties of the (poly)phenolic fraction. The objective of our work was to evaluate the contribution of phenolics to the antioxidant activity of microalgae …

    Hydrocarbon fules from biomass using IH2 technology

    Author: Pat Leung, CRI Catalyst Company, USA

    Description: Developed by the Gas Technology Institute (GTI), the IH2 process is an exciting new thermochemical process that converts a broad range of inedible biomass—wood, agricultural residues, algae (macro- and micro-), municipal solid wastes, energy crops and aquatic plants—directly into gasoline, diesel and jet range fuels and blend stocks. …

    Recovering nutrients from an algal biofuel production process

    Author: Mariluz Bagnoud-Velásquez, Ecole Polytechnique Fédéral de Lausanne, Switzerland

    Description: We are currently working towards demonstrating the technical and economic feasibility of an innovative process “SunCHem”, for methane production via hydrothermal processing of microalgae. The process is envisioned as a closed-cycle with respect to nutrients, water and CO2. These are separated and reused for microalgae growth thereby resulting in unprecedented energy efficiency for both algae and fuel production. …

    Overview on biofuel production pathways for algae

    Author: Michael Kroeger, DBFZ, Germany

    Description: One of the challenging tasks is the sustainable energy supply from renewable biomass in the national and international context. A critical point is the environmental friendly production and utilisation of biofuels with minimal adverse effect on the native environment, especially mitigation of green house gas emissions. To overcome this challenge, several innovative ideas have been suggested by the scientific and industrial community for an alternative biofuel production. …

    Harvesting performance guarantees per algae strain

    Author: Pieter Boelens, Evodos Inc., The Netherlands

    Description: The objective is to present he benefits of the Evodos harvesting technology. In summary, expressed will be the quality of the harvested algae, the ease of operations of the Evodos equipment and the financial benefits. This all is added with a performance guarantee because Evodos is extremely confident of the excellent performance. …

    From micro-algae discovery to biomass production in photobioreactors and its industrial valorisation

    Author: Clemence Boulaigre: Phycosource S.A.R.L., France

    Description: In spite of the huge potential of micro-algae, they generate only few innovations, in need of resources dedicated to applied research and economically feasible solutions for production.Recently, the development of sealed photobioreactors has allowed the production in large scales of promising micro-algae species which are hardly cultivable in open ponds. …

    Recycling black water nutrients by algae-based photobiodegradation

    Author: Tania Fernandes, Netherlands Institute of Ecology (NIOO-KNAW), The Netherlands

    Description: The Dutch Institute of Ecology (NIOO-KNAW) new building has implemented a new sanitation concept where black water (toilet water) and grey water (shower/washing water) are separated at source, therefore facilitating nutrient recovery, reducing drinking water consumption, generating bioenergy and a valuable algal biomass product. …

    Outdoor biomass production of Scenedesmus obliquus in solar tracked flat panel photobioreactors under temperate climate conditions

    Author: Stefan Hindersin, University Hamburg, Germany

    Description:Biomass productivity of the microalgae Scenedesmusobliquus was investigated outdoors in solar tracked flat panel photobioreactors (PBR) during the seasons in Northern Germany. An automated process control unit regulated the temperature, pH value and nutrient concentration in the culture medium. …

    Marine Drug Discovery – Antiviral active sulfoquinovosyldiacylglycerides from phototrophic microorganisms

    Author: Barbara Klein, Friedrich Alexander University Erlangen, Germany

    Description: The human β-herpesvirus cytomegalovirus (HCMV) causes some of the most fatal diseases for immunocompromised patients. Insufficient methods of treatment, resistance of antiviral drugs and undesired side effects make it necessary to screen for new potential drug candidates like phototrophic microorganism. …

    Seasonal variation of lipids and fatty acids of the microalgae Nannochloropsis oculata grown outdoors in large-scale photoreactors?

    Author: Martin Oloffson, Linnaeus University, Sweden

    Description: Oil-producing microalgae are a potential feedstock for the biodiesel industry. Whereas focus usually is on nutrient manipulation to boost lipid content, we investigated the seasonal variations of lipid content and composition in microalgae from large-scale cultivation. …

    Energy balances of different photobioreactor- and process designs for algae biofuel production

    Author: Anika Weiss, Karlsruhe Institute of Technology, Germany

    Description: The design of photobioreactors plays a crucial role for the energy balance of biofuels production with microalgae. Novel concepts like surface enlargement, thin culture layers and decreased mixing energy with laminar flow regime are being discussed to increase algae productivity and enhance the energy balance. Moreover, the up- and downstream processes of algae biofuels production can contribute largely to the energy balance and they partially depend on the reactor design…

   

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