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Search for "biomass" in Full Text gives 65 result(s) in Beilstein Journal of Organic Chemistry.
Artificial Diels–Alderase based on the transmembrane protein FhuA
Beilstein J. Org. Chem. 2016, 12, 1314–1321, doi:10.3762/bjoc.12.124
- support by the Deutsche Forschungsgemeinschaft (DFG) through the International Research Training Group “Selectivity in Chemo- and Biocatalysis” (SeleCa), the excellence cluster “Tailor-made Fuels from Biomass” (TMFB), the JSPS Japan-German Graduate Externship Program, and Grants-in-Aid for Scientific
Elucidation of a masked repeating structure of the O-specific polysaccharide of the halotolerant soil bacteria Azospirillum halopraeferens Au4
Beilstein J. Org. Chem. 2016, 12, 636–642, doi:10.3762/bjoc.12.62
- of Sciences (IBPPM RAS, Saratov) and was cultivated under aerobic conditions at 41 °C in a liquid malate medium [8] supplemented with 0.09 M NaCl. In an analogous manner as described before [14][33] the cells were washed from the capsule and dried, LPS was extracted from the biomass (10 g) by the
Antibiotics from predatory bacteria
Beilstein J. Org. Chem. 2016, 12, 594–607, doi:10.3762/bjoc.12.58
- : antibiotics; genome mining; Herpetosiphon; myxobacteria; predation; Introduction Microorganisms are major contributors to primary biomass production and nutrient cycling in nature. The composition of a microbial community shapes an ecosystem, but is also responsive to biotic and environmental cues. Predation
Natural products from microbes associated with insects
Beilstein J. Org. Chem. 2016, 12, 314–327, doi:10.3762/bjoc.12.34
- required by the insect host to provide necessary nutritional and immunological effectors (obligate symbiont) [37]. The microbiota may account for 1–10% of the insect biomass, implying that the insect, as well as any other higher organism, can be regarded as a multi-organismal entity [38]. Due to
Biocatalysis for the application of CO2 as a chemical feedstock
Beilstein J. Org. Chem. 2015, 11, 2370–2387, doi:10.3762/bjoc.11.259
- generation biofuel production processes. In this way, the carbon fixed by plants (biomass) is further transformed into a wide array of products through microbial processing [16]. Genetically engineered plants and algae have been employed to divert carbon flux in planta towards other metabolic products of
- interest, as an alternative to microbial processes [17][18]. Yet another alternative approach is to directly fix the CO2 with microorganisms, circumventing the intermediacy of crop derived biomass [19][20]. This can be done with autotrophic microbes, though these are generally poorly understood, and the
- were photosynthetically active, and the RuBisCO complex showed higher specific activities than the enzyme in the control tobacco line. Algae that utilise efficient variants of RuBisCO for fixation of CO2 have been targeted as a biomass source for a third generation of biofuels, due to their lack of
Synthesis of α,β-unsaturated esters via a chemo-enzymatic chain elongation approach by combining carboxylic acid reduction and Wittig reaction
Beilstein J. Org. Chem. 2015, 11, 2245–2251, doi:10.3762/bjoc.11.243
- acids are abundant from natural resources, aromatic carboxylic acids could be prepared by the degradation of lignin, an unused and abundant component of biomass, although the effective methods for the degradation of lignin need to be developed. These carboxylic acids could be reduced to their
Engineering Pichia pastoris for improved NADH regeneration: A novel chassis strain for whole-cell catalysis
Beilstein J. Org. Chem. 2015, 11, 1741–1748, doi:10.3762/bjoc.11.190
- ), thereby contributing to biomass production on methanol. Modifying the dissimilatory part of the MUT pathway has already been shown to improve the substrate conversion by NADH-dependent enzymes in P. pastoris [7]. Over-expression of the formaldehyde dehydrogenase, which was identified as the main
- linking methanol to biomass production, were deleted. In the course of 38 h, the optical density of the P. pastoris Δdas1 Δdas2 cultures on methanol doubled. This remaining carbon flux into cellular metabolism might also enable the continuation of protein expression and thus biocatalyst production, while
- turnover numbers in the reduction of racemic acetoin (kcat = 98,000 min−1) [22]. In an initial screening step, BDH1 transformants in the respective wild type and knock-out backgrounds were evaluated by performing acetoin conversions in the 96 well deep-well format. After biomass production on a D-glucose
Highly selective generation of vanillin by anodic degradation of lignin: a combined approach of electrochemistry and product isolation by adsorption
Beilstein J. Org. Chem. 2015, 11, 473–480, doi:10.3762/bjoc.11.53
- renewable feedstocks in the world [1][2][3]. Moreover, lignin represents the largest source of aromatic compounds among renewables and can be considered as non-food biomass. It usually occurs as a major waste fraction of the pulping industry on a multimillion ton scale [4]. This source has the potential to
Influence of cyclodextrin on the UCST- and LCST-behavior of poly(2-methacrylamido-caprolactam)-co-(N,N-dimethylacrylamide)
Beilstein J. Org. Chem. 2014, 10, 1951–1958, doi:10.3762/bjoc.10.203
- present study we evaluate the thermoresponsive behavior of solutions of polymers containing 2-methacrylamido-caprolactam as a comonomer. The used α-amino-ε-caprolactam is obtained from biomass through a combination of biological fermentation and chemical processes [14]. Results and Discussion Racemic α
Organic synthesis using photoredox catalysis
Beilstein J. Org. Chem. 2014, 10, 1097–1098, doi:10.3762/bjoc.10.107
- delivers a constant stream of oxygen and organic biomass. We should acknowledge this fact with humbleness, especially because we have not been able yet to mimic this process in a reliable way even after decades of intense research. The basic mechanistic principle behind photosynthesis is photoredox
Biosynthesis of rare hexoses using microorganisms and related enzymes
Beilstein J. Org. Chem. 2013, 9, 2434–2445, doi:10.3762/bjoc.9.281
- , and 5 [91]. L-Fucose (6-deoxy-L-galactose) L-Fucose is a rare sugar belonging to the deoxy sugar family, which is a naturally occurring sugar widely found in biomass, especially in plant, but in minor amounts. It is also found on the mammalian cell surface and a fundamental core moiety of various
NHC-catalysed highly selective aerobic oxidation of nonactivated aldehydes
Beilstein J. Org. Chem. 2013, 9, 602–607, doi:10.3762/bjoc.9.65
- ) for example can nowadays be gained directly from the conversion of biomass and thereby became an attractive synthesis unit in modern "green" chemistry [32]. Hence, further cheap and environmentally friendly selective transformations are of great interest. However, only a few methods have been
Conserved and species-specific oxylipin pathways in the wound-activated chemical defense of the noninvasive red alga Gracilaria chilensis and the invasive Gracilaria vermiculophylla
Beilstein J. Org. Chem. 2012, 8, 283–289, doi:10.3762/bjoc.8.30
- (wet weight) with minor impurities were harvested at Nordhafen, Germany. The biomass was frozen in liquid nitrogen and crushed in the cold state to a fine powder by using a household blender. The biomass was allowed to come to rt before 5 L of ethylacetate were added. Extraction was performed for 10 h
An overview of the key routes to the best selling 5-membered ring heterocyclic pharmaceuticals
Beilstein J. Org. Chem. 2011, 7, 442–495, doi:10.3762/bjoc.7.57
One-pot preparation of substituted pyrroles from α-diazocarbonyl compounds
Beilstein J. Org. Chem. 2008, 4, No. 45, doi:10.3762/bjoc.4.45
- demanding tasks, which include the search of products that can be manufactured in environmentally acceptable ways with minimum consumption of energy and abundant raw materials (e.g. biomass). The new reactions must maintain a favorable ecological balance to be acceptable by society. In many books, the
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