scholarly journals Ustilaginaceae Biocatalyst for Co-Metabolism of CO2-Derived Substrates toward Carbon-Neutral Itaconate Production

2021 ◽  
Vol 7 (2) ◽  
pp. 98
Author(s):  
Lena Ullmann ◽  
An N. T. Phan ◽  
Daniel K. P. Kaplan ◽  
Lars M. Blank
Keyword(s):  
Fungal Growth ◽  
Value Added ◽  
Plant Diseases ◽  
Yield Reduction ◽  
Industrial Biotechnology ◽  
Smut Fungi ◽  
Product Spectrum ◽  
Batch Bioreactor ◽  
Potential Applications ◽  
Carbon Neutral

The family Ustilaginaceae (belonging to the smut fungi) are known for their plant pathogenicity. Despite the fact that these plant diseases cause agricultural yield reduction, smut fungi attracted special attention in the field of industrial biotechnology. Ustilaginaceae show a versatile product spectrum such as organic acids (e.g., itaconate, malate, succinate), polyols (e.g., erythritol, mannitol), and extracellular glycolipids, which are considered value-added chemicals with potential applications in the pharmaceutical, food, and chemical industries. This study focused on itaconate as a platform chemical for the production of resins, plastics, adhesives, and biofuels. During this work, 72 different Ustilaginaceae strains from 36 species were investigated for their ability to (co-) consume the CO2-derived substrates acetate and formate, potentially contributing toward a carbon-neutral itaconate production. The fungal growth and product spectrum with special interest in itaconate was characterized. Ustilago maydis MB215 and Ustilago rabenhorstiana NBRC 8995 were identified as promising candidates for acetate metabolization whereas Ustilago cynodontis NBRC 7530 was identified as a potential production host using formate as a co-substrate enhancing the itaconate production. Selected strains with the best itaconate production were characterized in more detail in controlled-batch bioreactor experiments confirming the co-substrate utilization. Thus, a proof-of-principle study was performed resulting in the identification and characterization of three promising Ustilaginaceae biocatalyst candidates for carbon-neutral itaconate production contributing to the biotechnological relevance of Ustilaginaceae.

Sustainable production of liquid biofuels and value-added platform chemicals by hydrodeoxygenation of lignocellulosic bio-oil over a carbon–neutral Mo2C/CNF catalyst

2021 ◽  
Vol 405 ◽  
pp. 126705
Author(s):  
Javier Remón ◽  
Marina Casales ◽  
Jesús Gracia ◽  
María S. Callén ◽  
José Luis Pinilla ◽  
...  
Keyword(s):  
Value Added ◽  
Sustainable Production ◽  
Platform Chemicals ◽  
Bio Oil ◽  
Carbon Neutral

scholarly journals Characterization of selected pyrolysis products of diseased orange wood

BioResources ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 7118-7126
Author(s):  
Carolina Kravetz ◽  
Carlos Leca ◽  
José Otávio Brito ◽  
Daniel Saloni ◽  
David C. Tilotta
Keyword(s):  
Value Added ◽  
Chemical Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Pyrolysis Products ◽  
Bio Oil ◽  
Potential Applications ◽  
Domestic Use ◽  
Immediate Analysis ◽  
Orange Trees

Orange trees in Brazil are often burned as a means of eradication when they become infected with Huanglongbing disease. Rather than destroying them, which is a low-value proposition, one potential option is to utilize the biomass through pyrolysis. In this preliminary work, orange trees (Citrus sinensis) otherwise selected for purging, were sampled and pyrolyzed at 500 °C, and the charcoal and bio-oil were evaluated for potential value-added use. The results showed that the pyrolysis process resulted in 26.3% charcoal, 57.6% bio-oil, and 16.0% non-condensable gases. Qualitative analysis of the bio-oil by gas chromatography/mass spectrometry found 178 chemical compounds; however, only 25% of those compounds could be reliably identified. Potential applications of the compounds identified in the bio-oil were determined by examining the published literature, and it was found that at least 73% of them showed promise. Finally, initial studies on the immediate analysis of the pyrolysis charcoal showed that it potentially meets the standards set forth for Brazilian domestic use.

Integration of Lenticular Displays with Image Switching and Infrared Watermark

2015 ◽  
Vol 764-765 ◽  
pp. 1260-1264
Author(s):  
Yen I Liao ◽  
Hsi Chun Wang
Keyword(s):  
Carbon Material ◽  
Value Added ◽  
Infrared Detection ◽  
Infrared Light ◽  
Switching Effect ◽  
Digital Halftoning ◽  
Brand Protection ◽  
Potential Applications ◽  
Lenticular Lens ◽  
Lens Image

The objective of this paper is to integrate lenticular lens with switching images and embedding the infrared watermark to provide value-added and anti-counterfeiting features. Digital halftoning technique has been used to compose animated graphics and the infrared watermark. The infrared watermark consists of halftone dots in cyan, magenta, yellow, and black inks. The carbon material in black ink absorbs the infrared light and the watermark could be displayed under infrared detection. By using the lenticular lens, image-switching effect can be observed from different viewing angles. The results show that it is successful to implement a lenticular display with both image-switching feature and hidden watermark which can be decoded under infrared detection. The proposed method has many potential applications to anti-counterfeiting and brand protection.

scholarly journals Retraction: Bigger data open innovation: potential applications of value-added products from milk and sustainable valorization of by-products from the dairy industry

2017 ◽  
Vol 19 (13) ◽  
pp. 3164-3164
Author(s):  
S. Ortega-Requena ◽  
S. Rebouillat
Keyword(s):  
Open Innovation ◽  
Dairy Industry ◽  
Value Added ◽  
Innovation Potential ◽  
Potential Applications ◽  
By Products ◽  
Value Added Products

Retraction of ‘Bigger data open innovation: potential applications of value-added products from milk and sustainable valorization of by-products from the dairy industry’ by S. Ortega-Requena et al., Green Chem., 2015, 17, 5100–5113.

Calcium Carbonate and Cellulose/Calcium Carbonate Composites: Synthesis, Characterization, and Biomedical Applications

2016 ◽  
Vol 875 ◽  
pp. 24-44
Author(s):  
Ming Guo Ma ◽  
Shan Liu ◽  
Lian Hua Fu
Keyword(s):  
Calcium Carbonate ◽  
Biomedical Applications ◽  
Value Added ◽  
Functional Materials ◽  
Industrial Applications ◽  
Precipitation Method ◽  
Synthesis Methods ◽  
Water Pretreatment ◽  
Potential Applications ◽  
Co Precipitation

CaCO3 has six polymorphs such as vaterite, aragonite, calcite, amorphous, crystalline monohydrate, and hexahydrate CaCO3. CaCO3 is a typical biomineral that is abundant in both organisms and nature and has important industrial applications. Cellulose could be used as feedstocks for producing biofuels, bio-based chemicals, and high value-added bio-based materials. In the past, more attentions have been paid to the synthesis and applications of CaCO3 and cellulose/CaCO3 nanocomposites due to its relating properties such as mechanical strength, biocompatibility, and biodegradation, and bioactivity, and potential applications including biomedical, antibacterial, and water pretreatment fields as functional materials. A variety of synthesis methods such as the hydrothermal/solvothermal method, biomimetic mineralization method, microwave-assisted method, (co-) precipitation method, and sonochemistry method, were employed to the preparation of CaCO3 and cellulose/CaCO3 nanocomposites. In this chapter, the recent development of CaCO3 and cellulose/CaCO3 nanocomposites has been reviewed. The synthesis, characterization, and biomedical applications of CaCO3 and cellulose/CaCO3 nanocomposites are summarized. The future developments of CaCO3 and cellulose/CaCO3 nanocomposites are also suggested.

scholarly journals Domestication of the novel alcohologenic acetogen Clostridium sp. AWRP: from isolation to characterization for syngas fermentation

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Joungmin Lee ◽  
Jin Woo Lee ◽  
Cheol Gi Chae ◽  
Soo Jae Kwon ◽  
Yun Jae Kim ◽  
...  
Keyword(s):  
Value Added ◽  
The Novel ◽  
Primary Metabolite ◽  
Alcohol Production ◽  
Waste Gas ◽  
Batch Bioreactor ◽  
Genome Wide ◽  
Acetate Accumulation ◽  
Close Relatives ◽  
Oxidoreduction Potential

Abstract Background Gas-fermenting acetogens have received a great deal of attention for their ability to grow on various syngas and waste gas containing carbon monoxide (CO), producing acetate as the primary metabolite. Among them, some Clostridium species, such as C. ljungdahlii and C. autoethanogenum, are of particular interest as they produce fuel alcohols as well. Despite recent efforts, alcohol production by these species is still unsatisfactory due to their low productivity and acetate accumulation, necessitating the isolation of strains with better phenotypes. Results In this study, a novel alcohol-producing acetogen (Clostridium sp. AWRP) was isolated, and its complete genome was sequenced. This bacterium belongs the same phylogenetic group as C. ljungdahlii, C. autoethanogenum, C. ragsdalei, and C. coskatii based on 16S rRNA homology; however, the levels of genome-wide average nucleotide identity (gANI) for strain AWRP compared with these strains range between 95 and 96%, suggesting that this strain can be classified as a novel species. In addition, strain AWRP produced a substantial amount of ethanol (70–90 mM) from syngas in batch serum bottle cultures, which was comparable to or even exceeded the typical values obtained using its close relatives cultivated under similar conditions. In a batch bioreactor, strain AWRP produced 119 and 12 mM of ethanol and 2,3-butanediol, respectively, while yielding only 1.4 mM of residual acetate. Interestingly, the alcohologenesis of this strain was strongly affected by oxidoreduction potential (ORP), which has not been reported with other gas-fermenting clostridia. Conclusion Considering its ethanol production under low oxidoreduction potential (ORP) conditions, Clostridium sp. AWRP will be an interesting host for biochemical studies to understand the physiology of alcohol-producing acetogens, which will contribute to metabolic engineering of those strains for the production of alcohols and other value-added compounds from syngas.

scholarly journals Polydopamine-Coated Paraffin Microcapsules as a Multifunctional Filler Enhancing Thermal and Mechanical Performance of a Flexible Epoxy Resin

2020 ◽  
Vol 4 (4) ◽  
pp. 174
Author(s):  
Giulia Fredi ◽  
Cordelia Zimmerer ◽  
Christina Scheffler ◽  
Alessandro Pegoretti
Keyword(s):  
Phase Change ◽  
Storage Modulus ◽  
Mechanical Performance ◽  
Value Added ◽  
Mechanical Analysis ◽  
Scanning Calorimetry ◽  
Management Capability ◽  
Deposition Parameters ◽  
Potential Applications ◽  
Ep Matrix

This work focuses on flexible epoxy (EP) composites containing various amounts of neat and polydopamine (PDA)-coated paraffin microcapsules as a phase change material (PCM), which have potential applications as adhesives or flexible interfaces with thermal management capability for electronics or other high-value-added fields. After PDA modification, the surface of PDA-coated capsules (MC-PDA) becomes rough with a globular appearance, and the PDA layer enhances the adhesion with the surrounding epoxy matrix, as shown by scanning electron microscopy. PDA deposition parameters have been successfully tuned to obtain a PDA layer with a thickness of 53 ± 8 nm, and the total PDA mass in MC-PDA is only 2.2 wt %, considerably lower than previous results. This accounts for the fact that the phase change enthalpy of MC-PDA is only marginally lower than that of neat microcapsules (MC), being 221.1 J/g and 227.7 J/g, respectively. Differential scanning calorimetry shows that the phase change enthalpy of the prepared composites increases with the capsule content (up to 87.8 J/g) and that the enthalpy of the composites containing MC-PDA is comparable to that of the composites with MC. Dynamic mechanical analysis evidences a decreasing step in the storage modulus of all composites at the glass transition of the EP phase, but no additional signals are detected at the PCM melting. PCM addition positively contributes to the storage modulus both at room temperature and above Tg of the EP phase, and this effect is more evident for composites containing MC-PDA. As the capsule content increases, the mechanical properties of the host EP matrix also increase in terms of elastic modulus (up to +195%), tensile strength (up to +42%), Shore D hardness (up to +36%), and creep compliance (down to −54% at 60 min). These effects are more evident for composites containing MC-PDA due to the enhanced interfacial adhesion.

Bioprocessing: Engineering Know-How in Greater Demand than Ever

2006 ◽  
Vol 3 (4) ◽  
Author(s):  
Christina Hirche ◽  
Charles Butcher
Keyword(s):  
Value Added ◽  
Industrial Biotechnology ◽  
Biotechnological Production ◽  
Frankfurt Am Main ◽  
Process Industries ◽  
Know How ◽  
Biotechnological Processes ◽  
Chemical Products ◽  
General Topic ◽  
Total Sales

AbstractIntroductionSeveral studies forecast that the share of biotechnological processes in the total sales volume of chemical products will probably soar to around 15–20 % by 2010. Alone for the chemical industry, the potential value added of biotechnological production has been predicted to reach € 11–22 billion worldwide annually by then. The value added stems not only from new biotechnological products, but also from the effects of improved manufacturing processes. At ACHEMA 2006 in May 2006 in Frankfurt am Main - the world's leading event for the process industries - besides the integral general topic Biotechnological Equipment, which focuses on the equipment sector a special Industrial Biotechnology Exhibition and a Partnering Conference took place, thus paying tribute to the growing significance of industrial biotechnology and supporting international networking.

Materials Science Issues of Plasma Source Ion Implantation

1995 ◽  
Vol 396 ◽  
Author(s):  
M. Nastasi ◽  
A.A. Elmoursi ◽  
R.J. Faehl ◽  
A.H. Hamdi ◽  
I. Henins ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Materials Science ◽  
Ion Beam ◽  
Value Added ◽  
Plasma Source ◽  
Industrial Applications ◽  
Plasma Source Ion Implantation ◽  
Potential Applications ◽  
Surface Modification Techniques ◽  
Wear Coatings

AbstractIon beam processing, including ion implantation and ion beam assisted deposition (IBAD), are established surface modification techniques which have been used successfully to synthesize materials for a wide variety of tribological applications. In spite of the flexibility and promise of the technique, ion beam processing has been considered too expensive for mass production applications. However, an emerging technology, Plasma Source Ion Implantation (PSII), has the potential of overcoming these limitations to become an economically viable tool for mass industrial applications. In PSII, targets are placed directly in a plasma and then pulsed-biased to produce a non-line-of-sight process for intricate target geometries without complicated fixturing. If the bias is a relatively high negative potential (20-100kV) ion implantation will result. At lower voltages (50-1200V), deposition occurs. Potential applications for PSII are in low-value-added products such as tools used in manufacturing, orthopedic devices, and the production of wear coatings for hard disk media. This paper will focus on the technology and materials science associated with PSII.

scholarly journals Getting Environmentally Friendly and High Added-Value Products from Lignocellulosic Waste

2021 ◽  
Author(s):  
Elizabeth Quintana Rodríguez ◽  
Domancar Orona Tamayo ◽  
José Nicacio González Cervantes ◽  
Flora Itzel Beltrán Ramirez ◽  
María Alejandra Rivera Trasgallo ◽  
...  
Keyword(s):  
Value Added ◽  
Environmentally Friendly ◽  
Barrier Properties ◽  
Nanofibrillated Cellulose ◽  
Global Market ◽  
Added Value ◽  
Lignocellulosic Waste ◽  
Potential Applications ◽  
Cellulose Nanomaterials ◽  
Micro Nanofibrillated Cellulose

In recent years, alternatives have been sought for the reuse of lignocellulosic waste generated by agricultural and other industries because it is biodegradable and renewable. Lignocellulosic waste can be used for a wide variety of applications, depending on their composition and physical properties. In this chapter, we focus on the different treatments that are used for the extraction of natural cellulose fibers (chemical, physical, biological methods) for more sophisticated applications such as reinforcement in biocomposites. Due to the different morphologies that the cellulose can present, depending from sources, it is possible to obtain cellulose nanocrystals (CNCs), micro- nanofibrillated cellulose (MFC/NFC), and bacterial nanocellulose (BNC) with different applications in the industry. Among the different cellulose nanomaterials highlighted characteristics, we can find improved barrier properties for sound and moisture, the fact that they are environmentally friendly, increased tensile strength and decreased weight. These materials have the ability to replace metallic components, petroleum products, and nonrenewable materials. Potential applications of cellulose nanomaterials are present in the automotive, construction, aerospace industries, etc. Also, this chapter exhibits global market predictions of these new materials or products. In summary, lignocellulosic residues are a rich source of cellulose that can be extracted to obtain products with high value-added and eco-friendly characteristics.

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