nematocidal activities. Due to its poor solubility there is a need to formulate this curcumin for better bioavailability. Curcumin was extracted by acetone using soxhlet apparatus and evaporated by means of vacuum rotary evaporator. The presence of curcumin was confirmed by differential scanning calorimetry. Nanosuspension was prepared by bottom up method using acetone and water solvent system. Stabilizers were added under optimized conditions in order to achieve suitable quality of nanosuspension. Then it
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|12mL |----- | |95% ethanol |10mL |transparent liquid | |Acetone |10mL |transparent liquid | |Complex |9.198g |blue powdery substance
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Materials and Methods: PLGA (50:50 copolymer compositions; MW 30‚000 Da)‚ berberine chloride hydrate (MW 371.81 Da)‚ poly vinyl alcohol (MW 89‚000 Da) and 15 and 50 mL Corning centrifuge tubes were purchased from Aldrich (St. Louis‚ MO‚ USA). Acetone was purchased from Fischer Scientific Laboratory (Fair Lawn‚ NJ‚ USA). Phosphate buffer pH 7.0 was purchased from EMD Chemicals Inc. (Gibbstown‚ NJ‚ USA). 0.2 micron syringe filters were obtained from Millipore Corporation (Carrigtwohill‚ Ireland). 1
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impurity peaks (>10%) corresponding to methyl (triphenylphosphoranylidene) acetate‚ acetone‚ ethyl acetate‚ and hexane were identified. The phosphonium ylide peak indicates that the reaction did not go to completion (leftover starting material). Meanwhile‚ the acetone‚ ethyl acetate‚ and hexane peaks show there was residual solvent in the sample submitted for NMR analysis (compounds were not in reaction scheme). Because acetone‚ ethyl acetate‚ and hexane are volatile‚ we deduced that our evaporation of the
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type of consumer or industrial goods that utilize the products manufactured by Eastman.[5] Coatings‚ adhesives‚ specialty polymers and inks Utilizing raw materials including propane‚ ethane‚ butane‚ high sulfur coal‚ natural gas‚ wood pulp and acetone‚ Eastman produces several products in this category. Products include cellulosic polymers‚ cellulose esters‚ adhesion promoters‚ Texanol ester alcohol‚ solvents‚ hydrocarbon resins‚ rosin resins‚ resin dispersions‚ and polymer raw materials. These
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6-oxidonaphthalene-2-sulfonate). 1‚4-bis(bromomethyl)benzene‚ M5 (4.54 g‚ 17.2 mmol) and sodium 6-oxidonaphalene-2-sulfonate (0.84 g‚ 3.13 mmol) were dissolved in 30 ml of DMSO. The mixture was stirred at room temperature overnight. The mixture was poured into ice cold acetone with continuous stirring. The mixture was filtered and washed with DCM and methanol to yield the title compound as pale yellow solid. Yield (0.13 g‚ 9 %). δH (400 MHz‚ DMSO-d6) 3.83 (2 H‚ s‚ CH2Br)‚ 5.25 (2 H‚ s‚ CH2OAr)‚ 7.25-7.26 (1 H‚ br d‚ J =
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Experiment #9 – Identification of Aldehydes and Ketones Introduction Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other attachment may be to a carbon or a hydrogen. In all cases the carbon(s) that are attached to the carbonyl group may be aliphatic (not
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Table of Contents: CHAPTER I: Introduction . . . . . . . . . . . . . . . . . . . . . . .i Statement of the problem . . . . . . . . . . . ii Hypothesis . . . . . . . . . . . . . . . . . . . . . . . . iii Scope and limitation . . . . . . . . . . . . . . . iv Definition of terms . . . . . . . . . . . . . . . . . v CHAPTER II:RRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi CHAPTER III:Methodology . . . . . . . . . . . . . . . . . . . . . . vii CHAPTER IV:Results
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* Foil * Oven * Mortar and pestle * Glass test tubes with lids or small glass jars with tight lids. * Tea or coffee. (Optional) You may try one of the following solvents: * Rubbing alcohol/ethanol * Isopropanol * Acetone * Hexan All this solvents can be used for chlorophyll extraction. However they have different property called polarity. This property affects their efficiency as chlorophyll solvent. For our tests we used isopropanol and hexan/benzin mixture
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and vegetables. It‚ as a natural source of antioxidant‚ has been demanded due to its biological and physiochemical properties. Therefore‚ there is a need to develop the form of Lycopene supplement. Lycopene was extracted from tomato wastes by using acetone and purified by column chromatography. The extract was characterized by UV-Vis spectrophotometer. An average recovery of 40 mg lycopene / kg tomato wastes was obtained. Lyco-cookies were prepared by using common ingredients containing 3 mg lycopene
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