361 Result(s)
within
Chemistry
Biotechnology
Industrial Chemistry/Chemical Engineering
Su** Zhao
Article
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Article
Two-phase mixed indicator method for the determination of zwitterionic surfactants
The two-phase, mixed indicator method for anionic surfactants has been modified and applied to zwitterionic surfactants. The modifications entail: (i) lowering the pH; (ii) adding 95% ethanol, and (iii) increa...
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Microbial transformation of 12-hydroxyoctadecanoic acid to 5-n-hexyl-tetrahydrofuran-2-acetic acid
Stationary-phase cells of a corynebacterium (FUI-2) and a bacillus (NRRL B-14864) isolate, when grown aerobically in 1% YE medium at 25°C, converted 12-hydroxystearic acid to a major compound, 5-n-hexyl-tetrahydr...
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Oxygen transfer characteristics of multiple-phase dispersions simulating water-in-oil xanthan fermentations
A water-in-oil (W/O) cultivation technology has the potential of overcoming the problems related with high broth viscosity in xanthan fermentations. The aqueous broth is dispersed in a continuous oil phase. C...
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The antioxidant properties of lycopene concentrate extracted from tomato paste
Lycopene concentrate (LC) containing 50 wt% lycopene was extracted from tomato paste. The antioxidant properties of LC were evaluated by means of chemiluminescence in four models. The four models were superoxi...
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Article
Determination of oil color by image analysis
An image analysis method was developed to determine oil color based on Lovibond-red according to Chinese standard GB5528-85. For one hue, one feature of image analysis, a negative correlation with the red read...
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Article
Use of long-chain alcohol in extraction and purification of lincomycin from fermentation broth
Low selectivity for lincomycin in butanol extraction process leads to relatively higher content of impurities. A novel process for extraction of lincomycin from fermentation broth was studied in this work. Mix...
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Enzymatic synthesis of l-ascorbyl linoleate in organic media
A novel l-ascorbyl fatty acid ester, l-ascorbyl linoleate was successfully prepared by enzymatic esterification and transesterification in a non-aqueous medium using immobilized lipase as biocatalyst. Changes in ...
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Article
Aggregation mechanism of fine fly ash particles in uniform magnetic field
Aggregation of fly ash particles with size range of 0.023-9.314 μm in a uniform magnetic field was investigated for removing them. A binary collision-aggregation model evaluating particle aggregation coefficie...
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Solubility of 4-(3,4-dichlorophenyl)-1-tetralone in ethanol and acetone mixtures with the temperature range from 283.15 to 323.15K
The solubility of 4-(3,4-dichlorophenyl)-1-tetralone in the mixture of ethanol and acetone was measured by using a laser technique in the temperature range from 283.15 to 323.15 K. The results were correlated ...
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Article
Mass transfer and reaction process of the wet desulfurization reactor with falling film by cross-flow scrubbing
In the present study, a series of wet flue gas desulfurization experiments have been carried out in comparison with different slurry feeding ways, i.e., by series connection and by parallel connection, by mean...
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Investigation on characteristics of pulverized coal dense-phase pneumatic conveying under high pressure
Experiments of dense-phase pneumatic conveying of pulverized coal were carried out in a test facility with a conveying pressure up to 4 MPa. The influence of fluidization nitrogen flow rate, the flow rate of s...
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Article
Mass transfer and kinetics study on the sulfite forced oxidation with manganese ion catalyst
Wet limestone scrubbing is the most common flue gas desulfurization process (FGD) for control of sulfur dioxide emissions from the combustion of fossil fuels. Forced oxidation, which controls the overall react...
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Ab initio study of small coinage metal telluride clusters AunTem (n, m = 1, 2)
The geometries of the most stable isomers of gold telluride systems AuTe, Au2Te, and AuTe2 are determined using the MP2 method. The aspect of gold—telluride interaction, the electron correlation, and relativistic...
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Article
The role of microenvironment in aggregation of the 293-human embryonic Kidney cells
The microenvironment severely affects aggregation and growth of human embryonic kidney 293-HEK cells. Key factors such as calcium, magnesium and shear stress were investigated in detail and cell aggregate size...
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Article
NO x emission from incineration of organic liquid waste in a circulating fluidized bed
An incineration test of a toxic chemical organic waste liquid was conducted on a circulating fluidized bed (CFB) incinerator. The flue gas was measured online with the advanced SAE-19 flue gas analyzer. The ef...
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Photocatalytic oxidation of NO x over visible-light-responsive nitrogen-doped TiO2
In order to utilize visible-light in photocatalytic conversion of NO x , nitrogen atoms were doped in commercially available photocatalytic TiO2 powders by impregnating method. T...
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Article
Adsorption behaviors of the aminated chitosan adsorbent
Using inverse suspension technology, a novel aminated chitosan adsorbent with higher adsorption ability for metal cations and metal anions was prepared. Through cross-linking amination reaction, the content of...
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Article
Antioxidant Activity of Raisin Extracts in Bulk Oil, Oil in Water Emulsion, and Sunflower Butter Model Systems
The antioxidant activities of the raisin extract (RE) in stripped corn oil, stripped corn oil emulsions, and sunflower butter stored at 60 °C for up to 15 days was evaluated. Peroxide values and hexanal conten...
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Article
Asymmetric synthesis of 2,6-substituted dihydropyrone catalyzed by 3-monosubstituted and 3,3′-bisubstituted BINOL titanium complexes
Asymmetric hetero-Diels-Alder (HDA) reactions of aromatic aldehydes with Danishefsky’s diene derivative were carried out smoothly in the presence of the Ti(IV)-(R)-BINOL (1:1.2) complex to give the corresponding ...
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Article
Solubility of 4-(3,4-dichlorophenyl)-1-tetralone in eleven alcohols with the temperature range from 283K to 323K
The solubility of 4-(3,4-dichlorophenyl)-1-tetralone in eleven alcohols (methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 2-propanol, 2-butanol, 2-pentanol, 1,2-propanediol, 1,3-propanediol) wa...
