Category: alcohols-buliding-blocks

Richardson, Alan E. published the artcileOrganic anions facilitate the mobilization of soil organic phosphorus and its subsequent lability to phosphatases, Recommanded Product: (S)-2-hydroxysuccinic acid, the main research area is soil organic phosphorus phosphomonoesterase phosphodiesterase phytase.

Organic anions commonly released from plant roots and microorganisms are widely reported to mobilize soil phosphorus (P). We characterized soil organic P that was mobilized by organic anions and assessed its amenability to hydrolysis by phosphatase enzymes. Six soils differing in organic P concentration were extracted with citrate, malate or oxalate solutions and incubated with preparations of phosphomonoesterase, phosphodiesterase, or phytase. Organic P compounds present in these extracts were putatively identified and quantified with solution 31P-NMR spectroscopy and the enzyme-labile P fractions were assessed by changes in molybdate-reactive P (MRP) concentration Organic P mobilization varied markedly among the organic anions. Extraction with 10 mM citrate was most effective and extracted 7.8-fold more total P than the water controls across all soils. Approx. 95% of the extracted P was non-MRP. The organic anions increased both the amount of P extracted and the proportion of the total extracted P that was phosphatase-labile. Phytase was generally the most effective enzyme with up to 60% of the total non-MRP being amenable to hydrolysis by phytase across all extracts The presence of inositol hexakisphosphates in the extracts, as well as other forms of organic P including nucleic acids and phospholipids, was verified by 31P-NMR with concentrations dependent on both organic anions and soil type. The combination of organic anions and phosphatases represents a key mechanism by which plants and microorganisms can enhance the bioavailability of soil P. This has important implications for understanding P dynamics in natural and managed ecosystems and for ongoing efforts to improve the P-acquisition efficiency of agricultural plants.

Plant and Soil published new progress about Anions. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Recommanded Product: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Brizuela, Natalia Soledad published the artcileWhey permeate as a substrate for the production of freeze-dried Lactiplantibacillus plantarum to be used as a malolactic starter culture, Name: (S)-2-hydroxysuccinic acid, the main research area is wine whey permeate malic acid fermentation Lactiplantibacillus green chem; Freeze-drying; Lactiplantibacillus plantarum; Malolactic fermentation; Whey permeate; Wine.

The aim of this work was to obtain freeze-dried biomass of the native Patagonian Lactiplantibacillus plantarum strain UNQLp 11 from a whey permeate (WP)-based medium and compare it with the growth in com. MRS broth medium. Survival and activity of the freeze-dried Lb. plantarum strain were investigated after inoculation in wine as a starter culture for malolactic fermentation (MLF). The effect of storage and rehydration condition of the dried bacteria and the nutrient supplementation of wine were also studied. The freeze-dried cultures from WP and those grown in MRS showed similar survival results. Rehydration in MRS broth for 24 h and the addition of a rehydration medium to wine as nutrient supplementation improved the survival under wine harsh conditions and guaranteed the success of MLF. Storage at 4°C under vacuum was the best option, maintaining high cell viability for at least 56 days, with malic acid consumption higher than 90% after 7 days of inoculation in a wine-like medium. These results represent a significant advance for sustainable production of dried malolactic starter cultures in an environmentally friendly process, which is low cost and easy to apply in winemaking under harsh physicochem. conditions.

World Journal of Microbiology & Biotechnology published new progress about Biomass. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Name: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Oliveira de Araujo, Talita published the artcilePaspalum urvillei and Setaria parviflora, two grasses naturally adapted to extreme iron-rich environments, COA of Formula: C4H6O5, the main research area is Paspalum Setaria iron root shoot; Chloroplast; Citrate; Ferritin; Iron plaque; Malate; Oryza sativa; Paspalum urvillei; Perls-DAB method; Setaria parviflora; Setaria viridis; Vacuole; μXANES; μXRF.

Paspalum urvillei and Setaria parviflora are two plant species naturally adapted to iron-rich environments such as around iron mines wastes. The aim of our work was to characterize how these two species cope with these extreme conditions by comparing them with related model species, Oryza sativa and Setaria viridis, that appeared to be much less tolerant to Fe excess. Both Paspalum urvillei and Setaria parviflora were able to limit the amount of Fe accumulated within roots and shoots, compared to the less tolerant species. Perls/DAB staining of Fe in root cross sections indicated that Paspalum urvillei and Setaria parviflora responded through the build-up of the iron plaque (IP), suggesting a role of this structure in the limitation of Fe uptake. Synchrotron μXRF analyses showed the presence of phosphorus, calcium, silicon and sulfur on IP of Paspalum urvillei roots and μXANES analyses identified Fe oxyhydroxide (ferrihydrite) as the main Fe form. Once within roots, high concentrations of Fe were localized in the cell walls and vacuoles of Paspalum urvillei, Setaria parviflora and O. sativa whereas Setaria viridis accumulated Fe in ferritins. The Fe forms translocated to the shoots of Setaria parviflora were identified as tri-iron complexes with citrate and malate. In leaves, all species accumulated Fe in the vacuoles of bundle sheath cells and as ferritin complexes in plastids. Taken together, our results strongly suggest that Paspalum urvillei and Setaria parviflora set up mechanisms of Fe exclusion in roots and shoots to limit the toxicity induced by Fe excess.

Plant Physiology and Biochemistry (Issy-les-Moulineaux, France) published new progress about Biomass. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, COA of Formula: C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yu, Yaling published the artcileAqueous phase hydrogenolysis of sugar alcohol to higher alcohols over Ru-Mo/CMK-3 catalyst, Formula: C5H12O, the main research area is sugar alc ruthenium molybdenum CMK3 hydrogenolysis catalyst.

Recently, great efforts have been devoted to the production of higher alcs. (C2+ alcs.) by chem. synthesis, but it is still quite challenging for the related heterogeneous catalysis. In this work, the hydrogenolysis of sugar alcs. derived from biomass was proposed to efficiently synthesize higher alcs. over the Ru-Mo/CMK-3 catalyst. The C-C and C-O bonds in sorbitol were pos. broken to form C2+ alcs., while the excessive cleavage of C-O bonds to form C1-C6 alkanes was effectively suppressed. The exptl. results indicated that the yield of C2+ alcs. in the products reached 49.0%, and that of C5+ alcs. reached 29.9% in a continuous flow reactor. Preliminary exptl. results and catalyst characterization supported that the synergetic effect of Ru and Mo species, different Ru precursors and the mesoporous channel effect of CMK-3 carrier were the key to such high reactivity.

Fuel Processing Technology published new progress about Biomass. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tian, Yazhou published the artcileFrom biomass resources to functional materials: A fluorescent thermosetting material based on resveratrol via thiol-ene click chemistry, HPLC of Formula: 7575-23-7, the main research area is resveratrol allyl ether preparation biomass thiolene click chem.

Exploring sustainable bio-based thiol-ene crosslinked networks with inherent fluorescence, high comprehensive properties as well as low-toxicity will significantly expand their applications in display, anti-counterfeiting, and biomedical materials, etc. Resveratrol allyl ether (RAE), a novel multifunctional allyl compound, was prepared from sustainable feedstocks, and a series of thermosetting materials were designed by tuning the functionality of thiol compounds (from two to four) via UV-light induced thiol-ene click reaction. The curing behavior, thermal and thermomech. performance, mech. properties, and biotoxicity of these thiol-ene crosslinked networks were studied, resp. RAE-4SH exhibited the highest Tg and mech. properties. Specifically, the Tg of RAE-4SH was up to 71.2°; meanwhile, the tensile strength and modulus were as high as 49.5 MPa and 1.2 GPa, resp. It also performed exceptional strong blue-fluorescence under the excitation of UV-light due to the inherent conjugated structure. Moreover, the MTT and cell experiment confirmed low-toxicity of RAE-4SH. Finally, several complex patterns including “”BUCT””, a flower, and a two-dimension code can be easily prepared with the help of the photo mask. To summarize, RAE provides a new strategy to explore the biomass resources to prepare high-performance functional materials, which may greatly enlarge its application in the future.

European Polymer Journal published new progress about Biomass. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, HPLC of Formula: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Xuehua published the artcilePropelling microdroplets generated and sustained by liquid-liquid phase separation in confined spaces, Recommanded Product: n-Octanol, the main research area is microdroplets propelling liquid phase separation numerical simulation.

Flow transport in confined spaces is ubiquitous in technol. processes, ranging from separation and purification of pharmaceutical ingredients by microporous membranes and drug delivery in biomedical treatment to chem. and biomass conversion in catalyst-packed reactors and carbon dioxide sequestration. In this work, we suggest a distinct pathway for enhanced liquid transport in a confined space via propelling microdroplets. These microdroplets can form spontaneously from localized liquid-liquid phase separation as a ternary mixture is diluted by a diffusing poor solvent. High speed images reveal how the microdroplets grow, break up and propel rapidly along the solid surface, with a maximal velocity up to ~160μm s-1 , in response to a sharp concentration gradient resulting from phase separation The microdroplet propulsion induces a replenishing flow between the walls of the confined space towards the location of phase separation, which in turn drives the mixture out of equilibrium and leads to a repeating cascade of events. Our findings on the complex and rich phenomena of propelling droplets suggest an effective approach to enhanced flow motion of multicomponent liquid mixtures within confined spaces for time effective separation and smart transport processes.

Soft Matter published new progress about Biomass. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Dixit, Rakhi Bajpai published the artcileSecretomics: a biochemical footprinting tool for developing microalgal cultivation strategies, Name: (S)-2-hydroxysuccinic acid, the main research area is biochem footprinting microalgal cultivation; Biochemical tool; Bioprocess monitoring; Microalgal cultivation; Operation cost; Principal component biplot.

Microalgae offer a promising source of biofuel and a wide array of high-value biomols. Large-scale cultivation of microalgae at low d. poses a significant challenge in terms of water management. High-d. microalgae cultivation, however, can be challenging due to biochem. changes associated with growth dynamics. Therefore, there is a need for a biomarker that can predict the optimum d. for high biomass cultivation. A locally isolated microalga Cyanobacterium aponinum CCC734 was grown with optimized nitrogen and phosphorus in the ratio of 12:1 for sustained high biomass productivity. To understand d.-associated bottlenecks secretome dynamics were monitored at biomass densities from 0.6 ± 0.1 to 7 ± 0.1 g/L (2 to 22 OD) in batch mode. Liquid chromatog. coupled with mass spectrometry identified 880 exometabolites in the supernatant of C. aponinum CCC734. The PCA anal. showed similarity between exometabolite profiles at low (4 and 8 OD) and mid (12 and 16 OD), whereas distinctly sep. at high biomass concentrations (20 and 22 OD). Ten exometabolites were selected based on their role in influencing growth and are specifically present at low, mid, and high biomass concentrations Taking cues from secretome dynamics, 5.0 ± 0.5 g/L biomass concentration (16 OD) was optimal for C. aponinum CCC734 cultivation. Further validation was performed with a semi-turbidostat mode of cultivation for 29 days with a volumetric productivity of 1.0 ± 0.2 g/L/day. The secretomes-based footprinting tool is the first comprehensive growth study of exometabolite at the mol. level at variable biomass densities. This tool may be utilized in analyzing and directing microalgal cultivation strategies and reduction in overall operating costs.

World Journal of Microbiology & Biotechnology published new progress about Biomass. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Name: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Bo published the artcileBiohybrid photoheterotrophic metabolism for significant enhancement of biological nitrogen fixation in pure microbial cultures, Quality Control of 97-67-6, the main research area is Rhodopseudomonas nitrogen fixation photoheterotrophic metabolism biocompatibility.

We induce the coating of biocompatible cadmium sulfide (CdS) nanoparticles (NPs) on the living cell surface of a versatile photoheterotrophic bacterium, Rhodopseudomonas palustris. The photo-induced electrons from the CdS NPs significantly improve the biol. nitrogen fixation in pure cultures of R. palustris, as shown by increased nitrogenase activity, addnl. H2 evolution, elevated reducing equivalent, and increased intracellular ammonia and L-amino acids. As a result, an addnl. 153% of solid biomass is accumulated by the biohybrid cells, with outstanding photosynthetic efficiency of 6.73% and a nearly unaffected malate usage efficiency of 0.06 g h-1. The number of NPs and the cross-membrane interface both play important roles in the efficient generation and transduction of electrons. The biohybrid cells continuously fix N2 when sufficient N is available, thus revealing excessive reducing power. The Calvin cycle also contributes 28.1% to the addnl. solid biomass in the presence of available CO2. The CdS-coated photoheterotrophic cells exhibit excellent practical feasibility with an industrial waste carbon source under a solar/dark cycle. This study provides a facile and expandable strategy for other studies of visible-light-driven ambient N2 fixation and advanced solar-to-chem. conversion.

Energy & Environmental Science published new progress about Biomass. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Quality Control of 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cerdeira, Victoria published the artcileDesign of a low-cost culture medium based in whey permeate for biomass production of enological Lactobacillus plantarum strains, Category: alcohols-buliding-blocks, the main research area is Lactobacillus culture medium whey permeate biomass production; enological Lactobacillus plantarum strains; malic acid consumption; nutritional supplementation; sterile wine; whey permeate.

The production of malolactic starter cultures requires the obtention of suitably large biomass at low-cost. In this work it was possible to obtain a good amount of biomass, at laboratory scale, of two enol. strains of Lb. plantarum, by formulating a culture medium based on whey permeate (WP), a byproduct of the cheese industry usually disposed as waste, when this was supplemented with yeast extract (Y), salts (S) and Tween 80 (T) (WPYST). Bacteria grown in WPYST medium exhibited good tolerance to stress conditions of synthetic wine (pH 3.5, ethanol 13% vol/vol). However, when WPYST was added with 8% vol/vol ethanol, cultures inoculated in synthetic wine, showed a lower viability and capacity to consume L-malic acid than when they were cultured in WPYST without ethanol. Subsequently, strains grown in WPYST were inoculated in sterile wine samples (final stage of alc. fermentation) of the red varietals Merlot and Pinot noir, and incubated at laboratory scale. Cultures from WPYST, inoculated in Pinot noir wine, showed a better performance than bacteria grown in MRS broth, and exhibited a consumption of L-malic acid higher than 90%. However, cultures from WPYST or from MRS broth, inoculated in sterile Merlot wine, showed a lower survival. This study allowed the formulation of a low-cost culture medium, based on a byproduct of the food industry, which showed to be adequate for the growth of two enol. strains of Lb. plantarum, suggesting their potentiality for application in the elaboration of malolactic starter cultures.

Biotechnology Progress published new progress about Biomass. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Chenggang published the artcilePerennial cover crop biomass contributes to regulating soil P availability more than rhizosphere P-mobilizing capacity in rubber-based agroforestry systems, Quality Control of 97-67-6, the main research area is soil phosphorus rhizosphere agroforestry system biomass.

Cover crops used in agroforestry systems (AFS) are generally perceived to improve soil quality, but mechanisms underlying phosphorus (P) cycling in complex rhizosphere system are less clear, because the impacts of incorporated crops are often determined by inclusion time, residue management and species. We quantified 7-yr cumulative effects of perennial legume cover crop-Flemingia macrophylla on rhizosphere P cycling and availability during the dry and wet seasons in young and mature rubber-based AFS (i.e., YAFS and MAFS) in tropical China by analyzing cover crop biomass and P content, as well as net rhizosphere changes in P-mobilizing capacity (pH, organic acids and phosphatase activity) and P fractions. Compared to their monoculture counterparts, YAFS enhanced plant biomass and P stock in both seasons, whereas MAFS exhibited an opposite trend, except for increased biomass and P stock of floor litter in the dry season. Moreover, YAFS had a greater effect on net rhizosphere properties by reducing pH and increasing organic acids concentrations and acid phosphatase activity, but MAFS hardly alter them. However, these changes had little effect on net rhizosphere P fractions in both seasons, except the contribution of calcium-P to increasing P availability to a certain extent. Net rhizosphere organic P and microbial biomass P in YAFS were enhanced in both seasons by abundant residue returns from cover crop. Net rhizosphere available P surplus occurred in YAFS in the dry season and maintained balance in the wet season, but it almost reached a deficit in MAFS in both seasons. These results suggest that rhizosphere P cycling was more improved by cover crop in YAFS than MAFS, and biomass of cover crop residue contributed to regulating rhizosphere P cycling and availability more than rhizosphere P-mobilizing capacity. Our study highlights the importance of residue management of permanent cover crops on rhizosphere P cycling and availability in AFS with different ages.

Geoderma published new progress about Biomass. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Quality Control of 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts