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Wang Y.,Key Laboratory of Food Nutrition and Safety | Zhou Z.,ARC China | Diao Y.,Key Laboratory of Food Nutrition and Safety | Strappe P.,Industrial Transformation Training Center for Functional GrainsCharles Sturt UniversityWagga | Blanchard C.,Industrial Transformation Training Center for Functional GrainsCharles Sturt UniversityWagga
European Journal of Lipid Science and Technology | Year: 2017

In this study, rats with a fresh oil diet, a deep-fried oil diet, and a deep-fried oil and resistant starch (RS) diet were investigated for revealing the effects of deep-fried oil to the metabolic system and if RS could effectively attenuate metabolic dysfunction caused by deep-fried oil. The results showed that DO feeding led to significant increases of liver biomarkers of alanine aminotransferase (ALT) and aspartate transaminase (AST), accompanied by consistent reduction of total antioxidation (T-AOC) and glutathione peroxidase (GSH-Px) activity compared to the rats feeding with unheated canola oil (FO group) (p<0.05). Liver histology of rats in DO group exhibited membrane blebbing and boundary ambiguity, indicating DO might exert significant hepatotoxic effects. However, RS intervention (DO-RS group) significantly reversed these changes. Furthermore, the results in this study revealed that p53 and MAPK signaling pathways presented in the significantly enriched KEGG pathways list in FO versus DO group, but not in FO versus DO-RS group, suggesting RS intervention modulated these two signaling pathways. This is the first study to investigate RS intervention on the attenuation of hepatotoxicity induced by DO intake in the dietary. Practical applications: This study investigates the toxic effects of deep-fried oil consumption on health, in particular on hepatic immune system and the related mechanisms involved in this process. The main target of this research work is to contribute with useful information of deep-fried oil intake to the food industry and to find out effective ways to ameliorate the risk of deep-fried oil diet. A deep-fried oil diet can cause hepatotoxicity; in contrast, rats fed a deep-fried oil and RS diet are protected. The modulation of p53 and MAPK pathways might be one of the key regulations for RS intervention to attenuate liver dysfunction biomarkers (ALT and AST). © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Bhattarai R.R.,ARC China | Dhital S.,ARC China | Wu P.,University of Queensland | Wu P.,Xiamen University | And 3 more authors.
Food and Function | Year: 2017

Retention of intact plant cells to the end of the small intestine leads to transport of entrapped macronutrients such as starch and protein for colonic microbial fermentation, and is a promising mechanism to increase the content of resistant starch in diets. However, the effect of gastro-intestinal bio-mechanical processing on the intactness of plant cells and the subsequent resistance to enzymatic digestion of intracellular starch and protein are not well understood. In this study, intact cells isolated from legume cotyledons are digested in a laboratory model which mimics the mechanical and biochemical conditions of the rat stomach and duodenum. The resulting digesta are characterised in terms of cell (wall) integrity as well as intracellular starch and protein hydrolysis. The cells remained essentially intact in the model with negligible (ca. 2-3%) starch or protein digestion; however when the cells were mechanically broken and digested in the model, the hydrolysis was increased to 45-50% suggesting that intact cellular structures could survive the mixing regimes in the model stomach and duodenum sufficiently to prevent digestive enzyme access. Apart from intact cell walls providing effective barrier properties, they also limit digestibility by restricting starch gelatinisation during cooking, and significant non-specific binding of α-amylase is observed to both intact and broken cell wall components, providing a third mechanism hindering starch hydrolysis. The study suggests that the preservation of intactness of plant cells, such as from legumes, could be a viable approach to achieve the targeted delivery of resistant starch to the colon. © 2017 The Royal Society of Chemistry.


Wang Q.,Nanjing University of Aeronautics and Astronautics | Wang Q.,Chongqing University | Zhou F.,Nanjing University of Aeronautics and Astronautics | Zhou F.,Chongqing University | And 5 more authors.
Applied Surface Science | Year: 2011

CrN, TiCN and TiAlN coatings were deposited on WC cemented carbide disks using enhanced cathodic arc magnetron sputtering and their topographies and structures were observed and analyzed using scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The friction and wear properties of CrN, TiCN and TiAlN coatings sliding against SiC balls in water were investigated and compared synthetically using ball-on-disk tribometer. The results showed that the CrN/SiC tribopairs showed the lowest friction coefficient of 0.076, while the TiCN/SiC tribopairs displayed the highest friction coefficient of 0.264. For the CrN/SiC tribopairs the specific wear rate of CrN coatings was lowest while that of SiC balls became highest. But for the TiAlN(TiCN)/SiC tribopairs, the specific wear rate of TiAlN coatings was highest while that of SiC balls for the TiCN/SiC tribopairs became lowest. This indicated that the friction and wear behaviors of nitride coatings/SiC balls tribo-systems in water were more strongly influenced by the anti-oxidative ability of tribomaterials in water than by their mechanical properties. © 2011 Elsevier B.V. All rights reserved.


Yang Y.,Shandong Academy of Sciences | Wang Q.,Shandong Academy of Sciences | Wang Q.,ARC China | Xiu D.,Shandong Academy of Sciences | And 2 more authors.
Energy and Buildings | Year: 2013

A type of all-ceramic flat plate solar collector is introduced. These all-ceramic solar collectors are made from ordinary ceramic and V-Ti black ceramic. The solar absorptance of black ceramic coatings is in the range of 0.93-0.97. The all-ceramic solar collector is characterized by low cost, long lifetime, no attenuation of absorptance, and building integration. The word "integration" means not only that the solar elements are used as architectural elements in attractive, visible (or invisible), and not too costly ways, but also that the solar collectors should have the same lifetime with the building. They should replace other building elements or share roof materials with building roof. For example, they can act as balcony railings, or share the insulation layer. When the solar thermal collectors act as balcony railings, the thermal efficiency is about 471%. When solar collectors integrate with pitched building roofs, the thermal efficiency of all-ceramic solar system is more than 50%. © 2013 Elsevier B.V. All rights reserved.


Yang Y.,Shandong Academy of Sciences | Cao S.,Shandong Academy of Sciences | Cao S.,ARC China | Xu J.,Shandong Academy of Sciences | And 3 more authors.
Ceramics International | Year: 2013

A type of all-ceramic solar flat plate collector is introduced. These all-ceramic solar collectors are made from ordinary ceramic and V-Ti black ceramic. The ordinary ceramic raw material mainly means porcelain clay, quartz, feldspar etc. The vanadium-titanium black ceramic is synthesized from recycled industrial wastes. This type of solar collector has some advantages, such as low cost, long lifetime, no attenuation of absorptivity, and building integration. As can be seen these all-ceramic collectors can be used for a wide range of applications and provide significant benefits. © 2013 Elsevier Ltd and Techna Group S.r.l.


Zhu X.-Y.,ARC China | Chen F.,ARC China | Zhou F.,ARC China | Xu R.-T.,Shenhua Guoneng Ningxia Coal and Power Co.
Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power | Year: 2015

With a single burner in a 660 MW tangential pulverized coal-fired boiler in Yuanyang Lake Power Plant serving as the prototype, a full scale plasma ignition test rig was set up and the characteristics of aerospace plasma ignition were experimentally studied. The test results show that for Dongning-originated bituminous coal, when the power of the spray gun reaches 110 kW, the pulverized coal concentration for ignition can decrease to 0.13 kg/kg and the relatively good adaptable range of the primary air speed falls in a range from 18 m/s to 22 m/s and it is proper to control the pulverized coal fineness in a range from 20% to 24% in the initial stage of the ignition. For Ningxia-originated lean coal, when the power of the spray gun increases to 350 kW and the pulverized coal concentration reaches 0.25 kg/kg, the plasma ignition of pulverized coal can be realized and it is proper in the initial stage of the ignition to control the primary air speed in a range below 20 m/s. The industrial application results in the 660 MW boiler in Yuanyang Lake Power Plant show that the minimum ignition pulverized coal concentration is only 0.1 kg/kg and the temperature rise speed is ≤1 ℃/min, matching with the design temperature rise curves of the boiler and solving the problem that the temperature rise speed in the initial stage of conventional plasma ignition is quick. ©, 2015, Harbin Research Institute. All right reserved.


Wang Q.,Nanjing University of Aeronautics and Astronautics | Zhou F.,Nanjing University of Aeronautics and Astronautics | Zhou F.,Zhejiang University | Chen K.,Jiangsu University | And 2 more authors.
Thin Solid Films | Year: 2011

The TiCN coatings were deposited on WC cemented carbides using enhanced cathodic arc magnetron sputtering. The topography of TiCN coatings were observed using scanning electron microscopy (SEM), the composition and structure of TiCN coatings were analyzed by energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water were investigated using ball-on-disk tribometer. The results showed that the TiCN coatings had a strong (111) preferred orientation. The friction coefficient and the specific wear rates of the TiCN/SiC tribopairs in air were higher than those in water. When the TiCN coatings slid against SiC balls in water, the friction coefficient and the specific wear rates first decreased, and then increased with the normal load, but decreased linearly with the sliding velocity. The lowest friction coefficient of 0.171 was obtained at 3 N and 0.4 m/s, while the lowest specific wear rate of the TiCN coatings was 2.3 × 10- 6mm3/Nm at 6 N and 0.1 m/s. The TiCN coatings were worn out when the normal loads were higher than 6 N. When the TiCN coatings slid against the SUJ2 and SUS440C balls in water, the friction coefficient increased to 0.271 and 1.026 respectively. The EDS analysis showed that Fe and O elements existed on the wear track. This indicated that the tribochemical reaction occurred at the friction contact area. © 2011 Elsevier B.V. All rights reserved.


Courbet D.,Aix - Marseille University | Fourquet-Courbet M.-P.,Aix - Marseille University | Kazan R.,Aix - Marseille University | Intartaglia J.,ARC China
Journal of Computer-Mediated Communication | Year: 2014

Faced with an abundance of advertising messages, Internet users allocate only minimal cognitive resources to advertising. What are the effects of pop-up ads for a new brand viewed at low-level attention, and then measured when the Internet users have forgotten having seen them? In the theoretical context of processing fluency and implicit memory, the experiment (n = 398) studied the effects of repeated brief exposure to different types of content (words/image) in pop-up ads 7 days and 3 months after exposure. The results show the overall positive effects of the pop-ups, the superiority of the image over words for effects on attitude toward the brand and the purchase intentions; but the words produce more semantic effects than the image. © 2013 International Communication Association.


PubMed | ARC China
Type: Journal Article | Journal: Nanotechnology | Year: 2011

We report a one-step synthesis of magnetic helical mesostructured silica (MHMS) by self-assembly of an achiral surfactant, magnetic nanocrystals with stearic acid ligands and silicate. This core-shell structured material consists of an Fe(3)O(4) superparamagnetic nanocrystal core and a highly ordered periodic helical mesoporous silica shell. We propose that the formation of the helical structure is induced by the interaction between the surfactant and dissociated stearic acid ligands. The MHMS obtained possesses superparamagnetism, uniform mesostructure, narrow pore size distribution, high surface area, and large pore volume. Furthermore, the drug release process is demonstrated using aspirin as a drug model and MHMS as a drug carrier in a sodium phosphate buffer solution.


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