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2.087 Aktuelle Fachpublikationen zum Thema temperature

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Effects of an ionic liquid as an additive on the thermal denaturation/degradation of lysozyme crystals

17.10.2014 | Zhanzhong Wang, Wenzhi Fang, Lijie Li, Yan Li, Xiaoting Yu, Qing Gu, Fengjuan Zhou, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Ionic liquids (ILs) have biomaterial applications and are used for protein crystallization. The present study explores the thermal denaturation and degradation kinetics of the lysozyme crystals induced by IL [C4mim]Cl using differential scanning calorimetry (DSC). Lysozyme crystals ...

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C60‐Mediated Molecular Shape Sorting: Separation and Purification of Geometrical Isomers

16.10.2014 | Moumita Rana, R. Bharathanatha Reddy, Bibhuti Bhusan Rath, Ujjal K. Gautam, Angewandte Chemie International Edition, 2014

Abstract A supramolecular crystallization‐based approach has been developed for the shape‐dependent separation of geometrical isomers under near‐ambient conditions. Difficulties to separate such isomers arise because of their very similar physical properties. The present approach relies on the ...

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Unexpected Fluorescence of Polyols and PEGylated Nanoparticles Derived from Carbon Dot Formation

16.10.2014 | Hailong Dong, Marcus Roming, Claus Feldmann, Particle & Particle Systems Characterization, 2014

Synthesis of nanoparticles in high‐boiling alcohols (so‐called polyol synthesis) and surface functionalization of nanoparticles with polyethylene glycol (so‐called PEGylation) in combination with certain heating are often accompanied with an intense fluorescence in the blue to green spectral ...

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Effect of oven temperature profile and different baking conditions on final cake quality

16.10.2014 | Nur Syafikah Shahapuzi, Farah Saleena Taip, Norashikin Ab Aziz, Anvarjon Ahmedov, International Journal of Food Science & Technology, 2014

Summary This study discusses the effect of airflow on oven temperature profiles, the internal cake temperature and the final cake quality. It was found that the presence of airflow reduced the oscillation in the oven temperature profile from 12.98–30.27% to 3.17–4.02%. The bottom of the oven ...

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Tautomerism and Atropisomerism in Free‐Base (meso)‐Strapped Porphyrins: Static and Dynamic Aspects

15.10.2014 | Maxence Urbani, Tomás Torres, Chemistry - A European Journal, 2014

Abstract We report herein some outstanding examples of atropisomerism and tautomerism in five (meso‐)strapped porphyrins. Porphyrins S0–S4 have been synthesised, characterised and studied in detail by spectroscopic and spectrometric techniques, and their isomeric purity verified by HPLC ...

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Effects of Instant Pressure Drop Puffing with Super‐Heated Vapor on the Physical Properties of Granny Smith Apple Chips

15.10.2014 | Fengping An, Dongzhao Qiu, Hongbo Song, Xiaoqi Wu, Jinhua Tong, Rui Guo, Journal of Food Process Engineering, 2014

Abstract A central composite rotatable design of three factors was used to optimize instant pressure drop puffing with super‐heated vapor (IPDPSV) for Granny Smith apple slices. The physical properties of the chips processed by hot‐air drying after IPDPSV, hot‐air drying or freeze drying were ...

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Enhancing Antioxidant Activity of Sesamol at Frying Temperature by Addition of Additives through Reducing Volatility*

14.10.2014 | Hong‐Sik Hwang, Jill K. Winkler‐Moser, Karl Vermillion, Sean X. Liu, Journal of Food Science, 2014

Abstract Additives were evaluated to investigate their effects on volatility of sesamol at frying temperature with the hypothesis that the interaction between an additive and sesamol would reduce sesamol volatility. Twenty‐two additive : sesamol combinations were examined by thermogravimetric ...

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In Situ Thermally Induced Attenuation in Sapphire Optical Fibers Heated to 1400°C

14.10.2014 | Christian M. Petrie, Thomas E. Blue, Journal of the American Ceramic Society, 2014

The purpose of this work was to determine the spectral loss of sapphire optical fibers as a function of temperature to determine the suitability of using sapphire optical fiber‐based instrumentation in extremely high‐temperature applications such as coal gasifers, or potentially in advanced ...

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Surface Chemistry of CuInS2 Colloidal Nanocrystals, Tight Binding of L-Type Ligands

14.10.2014 | Ruben Dierick; Freya Van den Broeck; Kim De Nolf; Qiang Zhao; André Vantomme; José C. Martins; Zeger Hens, Chemistry of Materials, 2014

We analyze the surface chemistry of CuInS2 nanocrystals synthesized in the presence of amines. Using solution NMR spectroscopy and elemental analysis, we come to the conclusion that as-synthesized CuInS2 nanocrystals have charge neutral inorganic cores and are stabilized by a layer of tightly ...

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IJMS, Vol. 15, Pages 18349-18361: Control of Several Emissions during Olive Pomace Thermal Degradation

13.10.2014 | Miranda, Teresa ; Nogales, Sergio ; Román, Silvia ; Montero, Irene ; Arranz, José Ignacio; Sepúlveda, Francisco José, International Journal of Molecular Sciences, 2014

Biomass plays an important role as an energy source, being an interesting alternative to fossil fuels due to its environment-friendly and sustainable characteristics. However, due to the exposure of customers to emissions during biomass heating, evolved pollutants should be taken into account and ...

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