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151.
Sorayya Azarnia Daniel St-Gelais Claude P. Champagne Kieran N. Kilcawley 《Food Biotechnology》2013,27(2):135-149
The use of recombinant aminopeptidase (PepN) from Lactobacillus rhamnosus S93 in free or encapsulated form was investigated to shorten the duration of Cheddar cheese ripening. Proteolysis was determined by measuring the soluble nitrogen as phosphotungstic acid (PTA-N) derivatives and free amino acids (FAA) over a 6-month period. The experimental cheeses received higher scores for sensory properties than the control cheese. The amounts of PTA-N and total FAA in the cheese with the encapsulated enzyme after 2 months of ripening were close to those of the control cheese after 6 months, suggesting the acceleration in proteolysis by about 4 months. 相似文献
152.
Claire C. Berton‐Carabin Marie‐Hélène Ropers Claude Genot 《Comprehensive Reviews in Food Science and Food Safety》2014,13(5):945-977
More polyunsaturated fats in processed foods and fewer additives are a huge demand of public health agencies and consumers. Consequently, although foods have an enhanced tendency to oxidize, the usage of antioxidants, especially synthetic antioxidants, is restrained. An alternate solution is to better control the localization of reactants inside the food matrix to limit oxidation. This review establishes the state‐of‐the‐art on lipid oxidation in oil‐in‐water (O/W) emulsions, with an emphasis on the role of the interfacial region, a critical area in the system in that respect. We first provide a summary on the essential basic knowledge regarding (i) the structure of O/W emulsions and interfaces and (ii) the general mechanisms of lipid oxidation. Then, we discuss the factors involved in the development of lipid oxidation in O/W emulsions with a special focus on the role played by the interfacial region. The multiple effects that can be attributed to emulsifiers according to their chemical structure and their location, and the interrelationships between the parameters that define the physicochemistry and structure of emulsions are highlighted. This work sheds new light on the interpretation of reported results that are sometimes ambiguous or contradictory. 相似文献
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154.
Znini Mohamed Cristofari Gregory Majidi Lhou El Harrak Abdelhay Paolini Julien Costa Jean 《Food science and biotechnology》2013,22(1):113-119
Essential oil of aerial parts of Warionia saharae was obtained by hydrodistillation and analyzed by GC and GC-MS. Thirty-nine compounds were identified, accounting for 93.2% of the total oil. β-Eudesmol (34.9%), nerolidol-E (23%), and linalool (15.2%) were the most abundant components. The antifungal activity of the W. saharae oil was tested by poisoned food (PF) technique and the volatile activity (VA) assay against 3 phytopathogenic causing the deterioration for apple. The results indicated that the W. saharae oil inhibited significantly the mycelial growth of all strains tested (p<0.05). The minimum inhibitory concentration against Alternaria sp. was 2 μL/mL air in VA assay, whereas >2 μL/mL in PF technique for all strains. Fungal spore production was completely inhibited at 1 μL/mL air for Alternaria sp. and at 2 μL/mL air for Penicillium expansum and Rhizopus stolonifer. 相似文献
155.
Huang‐Jen Chiu Yu‐Kang Lo Ching‐Chun Chuang Chung‐Yu Yang Shih‐Jen Cheng Min‐Chien Kuo Yi‐Ming Huang Yuan‐Bor Jean Yung‐Cheng Huang 《International Journal of Circuit Theory and Applications》2014,42(6):572-583
This paper presents a module‐integrated isolated solar micro‐inverter. The studied grid‐tied micro‐inverters can individually extract the maximum solar power from each photovoltaic (PV) panel and transfer to the AC utility system. A harmonic suppression technique is used to reduce the DC‐bus capacitance. Electrolytic capacitors are not needed in the studied solar micro‐inverter. High conversion efficiency, high maximum power point tracking accuracy and long lifespan can be achieved. The operation principles and design considerations of the studied PV inverter are analyzed and discussed. A laboratory prototype is implemented and tested to verify its feasibility. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
156.
157.
Claude Cookman 《History of Photography》2013,37(2):199-207
Abstract When news of the assassination of Mohandas Gandhi circulated through New Delhi on 30 January 1948, Margaret Bourke-White, one of Life magazine's premier photographers, and Henri Cartier-Bresson, then a comparatively unknown French photojournalist, raced to Birla House, where the event occurred. Both understood the journalistic imperative of photographing Gandhi's body. Because of their different philosophical and technical approaches to photography, they responded to the challenge in different ways and produced very different results. This study compares their ideas, approaches, and results. It also offers a case study of one of Cartier-Bresson' s most important news reportages.1 相似文献
158.
Porous Materials: Direct Laser Writing of Low‐Density Interdigitated Foams for Plasma Drive Shaping (Adv. Funct. Mater. 43/2017) 下载免费PDF全文
James S. Oakdale Raymond F. Smith Jean‐Baptiste Forien William L. Smith Suzanne J. Ali Leonardus B. Bayu Aji Trevor M. Willey Jianchao Ye Anthony W. van Buuren Matthew A. Worthington Shon T. Prisbrey Hye‐Sook Park Peter A. Amendt Theodore F. Baumann Juergen Biener 《Advanced functional materials》2017,27(43)
159.
160.
Wei Chen Jian Liu Flore Brue Frédéric Skoczylas C.A. Davy Xavier Bourbon Jean Talandier 《Cement and Concrete Research》2012,42(7):1001-1013
This experimental study aims at identifying the water retention properties of two industrial concretes to be used for long term underground nuclear waste storage structures. Together with water retention, gas transfer properties are identified at varying water saturation level, i.e. relative gas permeability is assessed directly as a function of water saturation level Sw. The influence of the initial de-sorption path and of the subsequent re-saturation are analysed both in terms of water retention and gas transfer properties. Also, the influence of concrete microstructure upon water retention and relative gas permeability is assessed, using porosity measurements, analysis of the BET theory from water retention properties, and MIP. Finally, a single relative gas permeability curve is proposed for each concrete, based on Van Genuchten–Mualem's statistical model, to be used for continuous modelling approaches of concrete structures, both during drying and imbibition. 相似文献