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... This study aimed to selectively enrich stearidonic acid (SDA) together with γ-linolenic acid (GLA) in Echium plantagineum oil by urea complexation. The complexation process at room temperature was carried out replacing common organic solvents, such as hexane and ethanol, by alternative compounds, included in Green Solvent and Food Grade categories, adapting this process towards the principles of G ...
... Synergistic solubility enhancement of poly(methyl methacrylate) (PMMA) in ethanol/water mixtures is observed in the presence of benzoic acid (BA). SAXS and 2D correlation Raman experiments show that PMMA chains strongly interact with BA molecules in PMMA/BA/ethanol/water quaternary solutions via hydrogen bonding and dispersion interactions, which leads to the spontaneous extension of PMMA chains. ...
... Using lignocellulosic biomass, which is composed mainly of cellulose, hemicellulose and lignin, as a biopolymer resource in various polymeric material applications is an attractive option due to its abundance, biodegradability and renewability. Cellulose is the most popular member of the biopolymer trio for material applications, but despite constituting around half of a lignocellulosic biomass, a ...
... This work evaluates the purification of melon peel extracts obtained by two eco-friendly methods: autohydrolysis and sodium acetate/urea/water extraction (1:3:1.6), an alkaline deep eutectic solvent (DES). For that, sequential ethanol precipitation and resin adsorption/desorption stages were proposed for the separate recovery of the pectic and phenolic fractions. In order to screen the optimal pur ...
adsorption; culture media; distillation; energy efficiency; ethanol; ethanol fuels; permeability; process design; solvents; steam; zeolites
Abstract:
... To efficiently produce fuel ethanol from fermentation broth, the distillation column was coupled with vapor permeation (VP) of a NaA zeolite membrane instead of using the adsorption technique to remove solvent water. The comparative analysis indicated that the energy efficiency was consistently higher for distillation-VP coupling, using a single-column distillation and three-column distillation, r ...
Alnus glutinosa; Ribes nigrum; Rosa canina; Rosmarinus officinalis; Tilia tomentosa; antioxidants; chemical composition; ethanol; glycerol; glycosylation; high performance liquid chromatography; maceration; meristems; nucleosides; quality control; rutin; solid phase extraction; solvents
Abstract:
... Concentrated bud macerates (CBMs) are obtained from meristematic tissues such as buds and young shoots by maceration in a solvent composed of glycerin, water and ethanol (1/1/1/, v/v). Their traditional utilization in gemmotherapy has gained interest in the past years, and the knowledge of their chemical characterization can provide commercial arguments, particularly to secure their quality contro ...
... Often, clean energy concept is tagged with the bio-ethanol production from the agricultural sources. Herein, we are first to report on use of nanoscale materials (nano-CaO and nano-MgO) in fermentation process for bio-ethanol production from nanoscale materials (zinc, calcium and magnesium)-driven bio-fortified sweet sorghum. A field experiment was conducted during 2014 and 2015, and nanoscale mat ...
... Stevia rebaudiana (Bertoni) leaves consist of dietetically important diterpene steviol glycosides (SGs): stevioside (ST) and rebaudioside-A (Reb-A). ST and Reb-A are key sweetening compounds exhibiting a sweetening potential of 100 to 300 times more intense than that of table sucrose. Ultrasound-assisted extraction (UAE) of SGs was optimized by effective process optimization techniques, such as re ...
... Our objective was to conduct a meta-analysis on the effects of a chemical additive containing sodium benzoate, potassium sorbate, and sodium nitrite on the fermentation and aerobic stability of whole-plant maize silage. We used data from 28 experiments, with 56 untreated to treated comparisons, carried out over a 9-year period. The influence of dry matter (DM) content and length of ensiling on the ...
... We developed a simple, rapid, ecological RP-HPLC method for the estimation of Pitavastatin (PIT), Fenofibrate (FEN), and their impurities in a novel fixed dose combination. We achieved an efficient chromatographic separation in gradient elution mode using Hypersil BDS C18 (100 × 4.6 mm, 3.0 μm) column. The mobile phase A consisted of 0.1% glacial acetic acid buffer and mobile phase B consisted of ...
... Pruning of Juglans mandshurica produces many branches, which are potentially a rich source of juglone although they are usually discarded as waste. Herein, we describe a water-in-oil microemulsion-based microwave-assisted extraction (MBMAE) method to isolate the juglone found in waste branches from J. mandshurica. In our experiment, J. mandshurica waste branch powder was added to the MBMAE system. ...
carbon dioxide; durability; energy efficiency; ethanol; graphene; oxidation
Abstract:
... In this study, we developed hierarchically structured Pt/SnO₂/rGO electrocatalysts through a “layer-by-layer” synthetic strategy. Particularly, a morphologically controlled synthesis was adopted to obtain regularly shaped SnO₂ crystallites comprising the specific facets of (101), (110), (111), and (221). Then the Pt nanoparticles of ca. 3 nm were uniformly deposited onto the different facets of Sn ...
... Cryptosporidium spp. are obligate, intracellular parasites that cause life-threatening diarrhea among children and immunocompromised adults. Transmission occurs by the fecal-oral route following ingestion of thick-walled oocysts that can contaminate, persist, and resist disinfection in water and food. Sodium hypochlorite, peroxides, ozone, formaldehyde, and ammonia are suitable disinfectants again ...
... BACKGROUND: Vector-borne diseases are on the rise on a global scale, which is anticipated to further accelerate because of anthropogenic climate change. Resource-limited regions are especially hard hit by this increment with the currently implemented surveillance programs being inadequate for the observed expansion of potential vector species. Cost-effective methods that can be easily implemented ...
... Conventional petroleum-based synthetic polymeric fiber filter materials for separation may cause secondary pollution to the environment due to their non-degradable properties. Herein, we report a facile method of preparation of a biodegradable composite filter that can achieve filtration for air by underlaying the commercialized cellulose paper towel under electrospun zein fibers. The morphology o ...
... A homogeneous galactoglucan was purified from the alkali-extracted polysaccharides from the basidioma of Macrolepiota albuminosa by gradient ethanol precipitation, whose proposed structure was given for the first time. Results showed it had a molecular weight of 210 kDa, and mainly consisted of glucose and galactose. There were abundant filaments, randomly distributed sheet-like and flaky appearan ...
... Acetogenic bacteria produce acetate following the fixation of CO₂ via the Wood-Ljungdahl pathway. As such, they represent excellent process organisms for the production of novel chemicals and fuels from this waste greenhouse gas. Acetobacterium woodii is the model acetogen and numerous studies have been conducted investigating its biochemistry, gas consumption and use as a production chassis. Howe ...
... A novel pretreatment system containing deep eutectic solvents and ethanol (DES-E) for synergistic carbohydrate conversion and delignification was reported in this study. The DES-E pretreatment resulted in an enhanced glucose yield compared to individual DES and ethanol pretreatment for the three tested biomass, including Broussonetia papyrifera, corn stover and pine. To further explore the deligni ...
... To explore the newer saponin resources, in vitro toxicity of saponin-enriched fraction (SEF) extracted from Silene vulgaris(SV) was evaluated for first time and compared with in vitro toxicity of SEF extracted from Sapindus mukorossi (SM) and Chlorophytum borivilianum (CV). All extracted SEF from diverse resources were characterized by immersing TLC plates in 0.5% RBC suspension method, by ethanol ...
... This study compares the depolymerization of soda lignin via solvent liquefaction in ethanol and 1,4-butanediol (BD). The commercial soda lignin was fractionated based on solubility in ethyl acetate and methanol providing three fractions (F1 – soluble in ethyl acetate and methanol, F2 - insoluble in ethyl acetate and soluble methanol, F3 – insoluble in either) which varied mostly based on their mol ...