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排序方式: 共有661条查询结果,搜索用时 31 毫秒
111.
Alessandra Danza Amalia Conte Annamaria Cedola Inna Chisacova Matteo Alessandro Del Nobile 《International Journal of Food Science & Technology》2015,50(12):2688-2693
The best packaging conditions for rocket salad were assessed by subsequent experimental trials. In the first step, a preliminary screening of different packaging materials was performed and two micro‐perforated oriented polypropylene films with different micro‐hole diameters (90 and 110 μm) were selected as best packaging solutions. In the subsequent experimental step, modified headspace conditions were applied without any improvement on product quality. In the last step, the effects of an ethylene adsorbent were analysed. Rocket salad packaged in both films with the ethylene adsorbent recorded a shelf life of about 16 days, compared to the control samples that remained acceptable for 13 days. During storage, the microbial quality (mesophilic and psychrotrophic bacteria, pseudomonadaceae, lactic acid bacteria, yeasts, total coliforms and enterobacteriacae), the pH, the colour changes and the main sensory parameters were also monitored. 相似文献
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113.
Extract of Salicornia europaea in fresh pasta to enhance phenolic compounds and antioxidant activity
Lucia Padalino Cristina Costa Matteo Alessandro Del Nobile Amalia Conte 《International Journal of Food Science & Technology》2019,54(11):3051-3057
Extract from Salicornia europaea was added to durum wheat fresh pasta. Sensory properties, cooking quality, microbiological stability, content in bioactive compounds and antioxidant activity, before and after pasta digestion were studied. The extract was obtained by ultrasound-assisted extraction. From the technological point of view the extract did not affect pasta dough and the cooking parameters and sensory properties of the enriched samples were found similar to the control pasta. No antimicrobial effect was exerted by the extract. From the chemical point of view interesting findings were recorded for pasta before and after digestion. Specifically, data of bioaccessible fraction of digested sample showed a significantly higher amount of total phenols and flavonoid content (11.52 mg gallic acid g−1 and 0.55 mg quercetin g−1 respectively) than digested control pasta (9.54 mg gallic acid g−1 and 0.23 mg quercetin g−1 respectively). The antioxidant activity of enriched sample also increased compared to the control pasta (6.20 vs. 2.50 μmoles FeSO4 g−1). 相似文献
114.
C. S. Manso S. Thom E. Uhlmann C. L. F. de Assis E. G. del Conte 《The International Journal of Advanced Manufacturing Technology》2020,107(3):1179-1189
Micromilling allows for the high precision machining of different types of materials and thus promotes the manufacturing of micro-components for various te 相似文献
115.
Microbiological,physical and chemical characteristics of freshwater prawns (Macrobrachium rosenbergii) in modified‐atmosphere packaging
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Julia S. Simoes Eliane T. Mársico César A. Lázaro Micheli da S. Ferreira Robson M. Franco Ana Paula A. A. S. Pereira Carlos A. Conte‐Junior 《International Journal of Food Science & Technology》2015,50(1):128-135
This study evaluated the influence of packaging atmosphere (air versus 50% N2/50% CO2) on microbiological (mesophiles, psychrotrophs), physical (gas measurement) and chemical (pH, total volatile basic nitrogen [TVB‐N], NH3, H2S and biogenic amines) parameters in freshwater prawns during storage at 0 ± 1 °C for 240 h. To select the most appropriate packaging, 21 batches of each treatment were analysed. Both the packaging permeability and the combination of gases affected the shelf life, but the modified‐atmosphere packaging (MAP) was more efficient than air packaging, increasing the shelf life by 40 h. The parameters of pH and TVB‐N showed no statistical difference between the two atmosphere conditions all along the storage period. The biogenic amine agmatine showed potential for use as a quality indicator due to the increased concentration during storage. In further studies, this amine can be applied as an indicator for public health issue. 相似文献
116.
Accadia T Acernese F Astone P Ballardin G Barone F Barsuglia M Basti A Bauer TS Bebronne M Beker MG Belletoile A Bitossi M Bizouard MA Blom M Bondu F Bonelli L Bonnand R Boschi V Bosi L Bouhou B Braccini S Bradaschia C Branchesi M Briant T Brillet A Brisson V Bulik T Bulten HJ Buskulic D Buy C Cagnoli G Calloni E Canuel B Carbognani F Cavalier F Cavalieri R Cella G Cesarini E Chaibi O Chassande-Mottin E Chincarini A Chiummo A Cleva F Coccia E Cohadon PF Colacino CN Colas J Colla A Colombini M 《The Review of scientific instruments》2011,82(9):094502
We report an application of Kalman filtering to the inverted pendulum (IP) of the Virgo gravitational wave interferometer. Using subspace method system identification techniques, we calculated a linear mechanical model of Virgo IP from experimental transfer functions. We then developed a Kalman filter, based on the obtained state space representation, that estimates from open loop time domain data, the state variables of the system. This allows the observation (and eventually control) of every resonance mode of the IP mechanical structure independently. 相似文献
117.
118.
Designing Dual Transglutaminase 2/Histone Deacetylase Inhibitors Effective at Halting Neuronal Death
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Dr. Manuela Basso Dr. Huan Huan Chen Dr. Debasmita Tripathy Dr. Mariarosaria Conte Dr. Kim Y. P. Apperley Dr. Angela De Simone Prof. Dr. Jeffrey W. Keillor Prof. Dr. Rajiv Ratan Dr. Angela Nebbioso Dr. Federica Sarno Prof. Dr. Lucia Altucci Dr. Andrea Milelli 《ChemMedChem》2018,13(3):227-230
In recent years there has been a clear consensus that neurodegenerative conditions can be better treated through concurrent modulation of different targets. Herein we report that combined inhibition of transglutaminase 2 (TG2) and histone deacetylases (HDACs) synergistically protects against toxic stimuli mediated by glutamate. Based on these findings, we designed and synthesized a series of novel dual TG2–HDAC binding agents. Compound 3 [(E)‐N‐hydroxy‐5‐(3‐(4‐(3‐oxo‐3‐(pyridin‐3‐yl)prop‐1‐en‐1‐yl)phenyl)thioureido)pentanamide] emerged as the most interesting of the series, being able to inhibit TG2 and HDACs both in vitro (TG2 IC50=13.3±1.5 μm , HDAC1 IC50=3.38±0.14 μm , HDAC6 IC50=4.10±0.13 μm ) and in cell‐based assays. Furthermore, compound 3 does not exert any toxic effects in cortical neurons up to 50 μm and protects neurons against toxic insults induced by glutamate (5 mm ) with an EC50 value of 3.7±0.5 μm . 相似文献
119.
We show how an efficient nonlinear controller for a general model of autonomous underwater vehicles (AUVs) dynamics, with uncertainties and external disturbances, can be designed by means of Lyapunov techniques. The control task we consider consists of tracking a given reference trajectory. As part of the design strategy, both model uncertainties and external disturbances physically corresponding to the effect of an underwater current are represented as a bounded perturbation of a nominal model of the vehicle dynamics 相似文献
120.
Nitric oxide (NO) donors S-nitroso-N-acetylpenicillamine (SNAP) and sodium nitroprusside (SNP) modulate iron regulatory protein (IRP) activity and may, therefore, affect iron uptake through transferrin receptor expression. However, iron also enters the cell as nontransferrin-bound iron (NTBI), and the aim of this study was to evaluate the effects of NO donors on NTBI transport in HepG2 cells, a model of liver physiology. Incubation with SNP and SNAP led to a time- and concentration-dependent reduction in Fe3+ and Fe2+ uptake, thus indicating an effect on the transporter rather than on the reductase. In terms of Fe2+ uptake, no variations in the Michaelis-Menten constant (Km) and a reduction in maximum uptake (Vmax) (50, 33, and 16.6 fmol/microgram protein/min in control, SNP-, and SNAP-treated cells, respectively) were detected, which suggested a decrease in the number of putative NTBI transport protein(s). Gel shift assays showed that IRP activity was reduced by SNP and slightly increased by SNAP. Northern blot analysis of transferrin receptor messenger RNA (mRNA) levels showed variations similar to those observed for IRPs, but both NO donors increased L-ferritin mRNA levels and had no effect on the stimulator of Fe transport (SFT) mRNA. In conclusion, NO donors significantly reduce NTBI transport in HepG2 cells, an effect that seems to be IRP and SFT independent. Moreover, the reduction in NTBI uptake after NO treatment suggests that this form of iron may play a minor role in the increased hepatic iron stores observed in inflammation or that other liver cells are more involved in this pathological condition. 相似文献