نتایج جستجو برای: acetone and ethanol
تعداد نتایج: 16838268 فیلتر نتایج به سال:
Triclosan, a broad spectrum antibiotic is currently being evaluated for its anti-cancer property. Though several solvents are available to dissolve lipophilic (hydrophobic) drugs, solubility and toxicity aspects pose a challenge, when combined with the cell culture medium. In this paper, we present a simple approach based on physico-chemical and biologic criteria to choose a suitable solubilizi...
Capsaicin has general impressive health benefits such as anticancer, stimulates digestion and enables weight loss. The aim of this study is to extract capsaicin from black pepper white by using polar (Ethanol) nonpolar (Acetone) solvents maximize the percentage yield capsaicin. effect temperature solid solvent ratioon investigated for extraction pepper. higher acetone than ethanol both at ratio...
Traditionally, bio-butanol is produced with the ABE (Acetone Butanol Ethanol) process using Clostridium species to ferment sugars from biomass. However, the route is associated with some disadvantages such as low butanol yield and by-product formation (acetone and ethanol). On the other hand, butanol can be directly produced from ethanol through aldol condensation over metal oxides/ hydroxyapat...
A gas chromatography (GC) method including a full evaporation headspace (FE-HS) sampling technique was developed for rapidly and simultaneously measuring volatile products for acetone-butanol-ethanol (ABE) fermentation. In this method, a small volume (<50 μL) of fermentation broth was directly injected into a sealed headspace sample vial (22 mL) and the mass transfer of acetone-butanol-ethanol ...
Clostridium acetobutylicum is an organism involved in the production of acetone and butanol by traditional acetone-butanol-ethanol fermentation (ABE). We report the draft genome sequence of C. acetobutylicum strain GXAS18-1, which can produce ABE directly from cassava flour.
A simple mixture process design based on the comparison of both quadratic and special cubic models and involving three mixture components (hexane/acetone/ethanol) as a solution for extracting lycopene from raw tomato, tomato sauce, and tomato paste was used to confirm the hypothesis that lycopene extraction rates are a function of the solvent used during the extraction process. Conventional cri...
This study presents mass transfer modeling of solvent extraction by membrane contactors. The extraction system was a membrane contactor, an aqueous solution of ethanol and acetone as the feed and a near-critical phase of carbon dioxide as the solvent. Model was based on solving conservation equations for solutes in the membrane contactor. The equations of the model were solved by numerical meth...
Thunbergia laurifolia Lindl. or Rang Chuet (RC) is widely described in Thai traditional medicine for protection against dietary and environmental toxicants with little substantiation. To better access the potential of RC as a medicinal plant, extracts were prepared by infusion with water, ethanol and acetone. Antioxidant activities and total phenolic content of RC extracts were evaluated using ...
Metabolic engineering (ME) of Clostridium acetobutylicum has led to increased solvent (butanol, acetone, and ethanol) production and solvent tolerance, thus demonstrating that further efforts have the potential to create strains of industrial importance. With recently developed ME tools, it is now possible to combine genetic modifications and thus implement more advanced ME strategies. We have ...
OBJECTIVE Little knowledge is available on the antimicrobial and antioxidant properties of Coccina grandis fruits and no study has reported on its cell proliferative property. The aim of this study was to examine the antimicrobial, antioxidant and cell proliferative property of fruits of C. grandis. MATERIALS AND METHODS Fruits of C. grandis were extracted using water; ethanol and acetone by ...
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