| 1. |
- Berntsson, Thore, 1947, et al.
(author)
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Vad är ett bioraffinaderi?
- 2014
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In: Perspektiv på förädling av bioråvara 2014. - 9789198097450 ; , s. 8-9
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Book chapter (other academic/artistic)
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| 2. |
- Berntsson, Thore, 1947, et al.
(author)
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What is a biorefinery?
- 2012
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In: Systems Perspectives on Biorefineries 2012. - 9789198030013 ; , s. 16-25
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Book chapter (other academic/artistic)abstract
- The term “biorefinery” appeared in the 1990’s in response to a least four industry trends. First, there was an increased awareness in industry of the need to use biomass resources in a more rational way both economically and environmentally. The environmental issue was both policy and consumer driven. Second, therewas a growing interest in upgrading more low-quality lignocellulosic biomass to valuable products. Third, there was an increased attention to the production of starch for energy applications. Finally, there was a perceived need to develop more high-value products and diversify the product mix in order to meet global competi- tion and, in some cases, utilise an excess of biomass (especially in the pulp and paper industry).In a biorefinery, biomass is upgraded to one or more valuable products such as transport fuels, materials, chemicals, electricity and, as byproduct, heat. In principle all types of biomass can be used, e.g. wood, straw, starch, sugars, waste and algae. But there is more to it than that. The aim of this chapter is to explain in some more detail what a biorefinery is or could be.There have been many attempts to determine what should be meant by a “biorefinery” and in the next section we provide some of the definitions and additional meaning that has been attached to the concept. To give a more in-depth understanding of what a biorefinery might be, the following sections describe process technologies that are often considered as key constituent parts of biorefineries and some opportunities for integration in existing processing industry that also can be viewed as biorefining.
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| 3. |
- Eliasson Lantz, Anna, et al.
(author)
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On-line monitoring of fermentation processes in lignocellulose-to-bioalcohol production.
- 2010
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In: Bioalcohol production: Biochemical conversion of lignocellulosic biomass. - : Elsevier. - 9781845695101 ; , s. 315-339
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Book chapter (other academic/artistic)abstract
- Online monitoring of bioethanol production is challenging due to the complex, viscous sample matrix, also containing solids. Suitable targets for online measurement are identified and potential monitoring techniques in addition to standard physicochemical measurements are reviewed. Advantages and limitations of chromatographic techniques, spectroscopic methods and software sensors are discussed in detail. In conclusion, bioethanol production processes should certainly benefit from online measurement of key process variables, especially if measurements are incorporated in process control loops. However, convincing case studies are lacking, and therefore development of suitable sampling methods and online measurement techniques should first be prioritized.
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| 4. |
- Gatenholm, Paul, 1956, et al.
(author)
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Effect of cultivation conditions on the structure and morphological properties of BNC biomaterials with a focus on vascular grafts
- 2016
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In: Bacterial NanoCellulose: A Sophisticated Multifunctional Material. - Boca Raton : CRC Press. - 9781439869925 ; , s. 19-42
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Book chapter (other academic/artistic)abstract
- 20 New materials that are not thrombogenic and have mechanical properties that mimic the native blood vessel are in very great demand. Nanocellulose produced by the bacteria Gluconacetobacter xylinus is a biomaterial that has gained interest in the field of tissue engineering because of its unique properties, such as great mechanical strength, high water content (around 99%), and the ability to be shaped into three-dimensional structures during biosynthesis. The fabrication process of bacterial nanocellulose (BNC) vascular grafts is very unique because the material synthesis and product formation takes place simultaneously. The bio mechanical performance, which includes rupture pressure and compliance along with biological response (endothelialization, blood compatibility, etc.), is dependent on the morphology of a fibrillar network. The network formation is affected by cellulose assembly and bacteria motion, proliferation rate, and other factors. An understanding of the effects of cultivation conditions on BNC network formation is therefore of great importance.
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| 5. |
- Koppram, Rakesh, 1986, et al.
(author)
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Simultaneous saccharification and co-fermentation for bioethanol production using corncobs at lab, PDU and demo scales
- 2015
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In: Fuel production from non-food biomass: Corn stover. - : Apple Academic Press. - 9781498728430 - 9781771881234 ; , s. 155-179
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Book chapter (other academic/artistic)abstract
- The global CO2 emissions in 2010 from fossil energy use grew at the fastest rate since 1969. The year 2010 also witnessed that the global oil production did not match the rapid growth in consumption [1]. These recent data further intensify worldwide concerns about greenhouse gas emissions and energy security for a sustained economic development. For a reduced dependence on oil from fossil reserves, use of biofuels such as bioethanol from abundantly available lignocellulosic biomass is of great interest nowadays because they will count towards meeting the mandate of 10% binding target for biofuels from renewable sources in the transport for all European member states by 2020 [2]. Along with this interest comes increased interest in commercializing ethanol production technology from inexpensive lignocellulosic feedstocks which includes wood biomass, agricultural and forestry residues, biodegradable fraction of industrial and municipal wastes. Irrespective of type, the basic structural composition of lignocellulosic biomass consists of cellulose, hemicellulose and lignin. The cellulose and hemicellulose that form the polysaccharide fraction are embedded in a recalcitrant and inaccessible arrangement [3] and therefore requires a pretreatment step to disrupt the structure and make it accessible for subsequent steps. Since lignocellulosic materials are very complex, not one pretreatment method can apply for all the materials. Several methods that are classified in to physical, physico-chemical, chemical and biological pretreatment have been investigated and an elaborate review on each of these methods has been presented by Taherzadeh and Karimi [4]. One of the most commonly used pretreatment methods is steam explosion, with the addition of H2SO4 or SO2, which removes most of the hemicellulose, followed by enzymatic hydrolysis to convert cellulose to glucose [5,6].
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| 6. |
- Mapelli, Valeria, 1978, et al.
(author)
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Systems biology methods and developments for Saccharomyces cerevisiae and other industrial yeasts in relation to the production of fermented food and food ingredients
- 2013
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In: Microbial Production of Food Ingredients, Enzymes and Nutraceuticals. - : Elsevier. - 9780857093431 ; , s. 42-80
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Book chapter (other academic/artistic)abstract
- This chapter describes the use of the systems biology tool box in the production of food and food ingredients based on yeast fermentation. Challenges and possibilities of the application of systems biology are described in relation to the production of yeast fermented food and to novel production of food ingredients and nutraceuticals based on yeast fermentation. While brewer's yeast remains the main and best characterized microorganism used for food and beverage production, the chapter also describes how systems biology tools can be valuable in the implementation of novel cell factories for food ingredients using so-called non-conventional yeasts. © 2013 Woodhead Publishing Limited. All rights reserved.
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| 7. |
- Moreno, David, 1986, et al.
(author)
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Pretreatment of lignocellulosic Feedstocks
- 2017
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In: Extremophilic Enzymatic Processing of Lignocellulosic Feedstocks to Bioenergy. - Cham : Springer International Publishing. - 9783319546834 ; , s. 31-52
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Book chapter (other academic/artistic)
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| 8. |
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| 9. |
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