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Application of Natural Antioxidants from.Strawberry Tree(Arbutus unedo L.) and Dog Rose(Rosa canina L.) to Frankfurters Subjected to Refrigerated Storage

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Journal of Integrative Agriculture 2013年第11期12卷 1972-1981页

作者： m.nica Arm.nteros David m.rcuende Sonia Ventanas m.rio estévez Anim.l Production and Food Science University of ExtremaduraAv.de la Universidad s/n

The effect of the addition of natural antioxidants from.strawberry tree （Arbutus unedo L.; AU） and dog rose （Rosa canina L.; RC）, in frankfurters elaborated with or without the addition of antioxidant additives （sodium.ascorbate and nitrite） was studied. Six different types of experim.ntal frankfurters were prepared depending on the addition of phenolic-rich extracts from.RC and AU and the presence （P） or absence （C） of antioxidant additives. Thiobarbituric acid reactive substances （TBARS）-num.ers signiifcantly increased during chilled storage of C-frankfurters while additives and fruit phenolics inhibited lipid oxidation in P-frankfurters. The am.unt of protein carbonyls signiifcantly increased in all treatm.nts except in P-AU frankfurters. The discoloration process that occurred during the chilled storage was reduced by the addition of substances with proven antioxidant activity （P-frankfurters）. Texture characteristics as hardness, springiness, cohesiveness and gum.iness also suffered a signiifcant deterioration in C-frankfurters. The use of phenolic fruit extracts in com.ination with traditional antioxidant additives is a successful strategy to enhance the oxidative stability of frankfurters without m.difying their color and texture properties.

关键词： fruit phenolics protein oxidation lipid oxidation nitrite ascorbate

m.diterranean Berries as Inhibitors of Lipid Oxidation in Porcine Burger Patties Subjected to Cooking and Chilled Storage

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Journal of Integrative Agriculture 2013年第11期12卷 1982-1992页

作者： Rui Ganho m.rio estévez m.nica Arm.nteros David m.rcuende Food Science Departm.nt ESTMPolytechnic Institute of Leiria Anim.l Production and Food Science University of ExtremaduraAv.de la Universidad s/n Anim.l Production and Food Science University of ExtremaduraAv.de la Universidad s/nCáceres 10003Spain

The efifciency of extracts from.Arbutus unedo L. （AU）, Crataegus m.nogyna L. （Cm., Rosa canina L. （RC）, and Rubus ulm.folius Schott. （RU） to inhibit lipid oxidation in raw, cooked and cooked and chilled （2°C/12 d） porcine burger patties, was investigated. The m.diifcation of the fatty acid proifle during processing treatm.nts （cooking and chilling）, the quantitative m.asurem.nts of thiobarbituric acid reactive substances （TBA-RS）, and lipid-derived volatiles, were used as indicators of lipid oxidation. Polyunsaturated fatty acids （PUFA） gradually decreased during cooking and the subsequent storage of cooked burger patties with this decrease being signiifcantly greater （P〈0.05） in control patties than in those with added berry extracts. In accordance, the control patties showed signiifcantly higher TBA-RS num.ers and counts of lipid-derived volatiles in all treatm.nts when com.ared to the berry-added counterparts （P〈0.05）. Results from.the present work show, for the ifrst tim., that extracts from.A. unedo, C. m.nogyna, R. canina, and R. ulm.folius are prom.sing antioxidants which could enhance the nutritional, safety and sensory properties of porcine burger patties.

关键词： berries lipid oxidation m.at pattiesm.TBA-RSm.polyunsaturated fatty acids lipid-derived volatiles

m.gnetic filtration of an iron oxide aerosol by m.ans of m.gnetizable grates

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China Particuology 2007年第1期5卷 140-144页

作者： A. Alvaro J.m. Rodríguez Paulo A. Augusto A.m. estvez Departm.nt of Chem.cal Engineering University of Salamanca Plaza de los Caídos 1-5 37008 Salamanca Spain Departm.nt of Chem.cal Engineering University of Salamanca Plaza de los Caídos 1-5 37008 Salamanca Spain Department of Chemical Engineering Faculty of Engineering University of Porto Rua Dr. Roberto Frias 4200-465 Porto Portugal

The cleaning of gases with low concentrations of sm.ll ferrom.gnetic or param.gnetic particles is a difficult task for conventional filtration. A new alternative procedure, m.gnetic filtration, is used in this work. Iron oxide aerosol was generated by elutriation of iron oxide particles from.a fluidized bed consisting of a m.xture of Geldart-C iron oxide powder and large spherical Geldart-B sand particles. The aerosol was filtered by m.ans of a m.gnetic filter which consisted of one, two or three iron grates staggered to each other. The experim.ntal installation contained also an isokinetic sam.ling system.and a m.crotrac SRA 150 Particle Analyser. A theoretical expression for filtration efficiency was deduced from.a previous m.del taking into account the different forces acting on the iron oxide particles. Experim.ntal filtration efficiency m.tches quite well calculated theoretical efficiency. It was found that an increase in particle size, in thee num.er of grates or in the applied m.gnetic field produced higher filtration efficiencies up to 100% in som. cases. In all filtration experim.nts pressure drop through the m.gnetic filter was very sm.ll.

关键词： Iron oxide aerosol m.gnetic filtration Iron grates

Pollen analysis reveals the effects of uncovered interactions,pollen-carrying structures,and pollinator sex on the structure of wild bee-plant networks

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Insect Science 2024年第3期31卷 971-988页

作者： Clém.nt Tourbez Carm.lo Góm.z-m.rtínez m.guelÁngel Gonzalez-estévez Am.aro Lazaro m.diterranean Institute for Advanced Studies(UIB-CSIC) Global Change Research GroupEsporlesBalearic IslandsSpain Departm.nt of Biology Ecology AreaUniversity of the Balearic/slandsPalmaSpain

Pollination networks are increasingly used to m.del the com.lexity of interactions between pollinators and flowering plants in *** m.thods exist to sam.le these interactions,with direct observations of plant-pollinator contacts in the field being by far the m.st *** the identification of pollen carried by pollinators allows uncovering interactions and increasing sam.le sizes,the m.thods used to build pollen-transport networks are variable and their effect on network structure rem.ins *** understand how interaction sam.ling influences the structure of networks,we analyzed the pollen found on wild bees from.eight com.unities across m.llorca Island and investigated the differences in pollen loads between bee body parts(scopa ***)and *** then assessed how these differences,as well as the uncovered interactions not detected in the field,influenced the structure of wild bee-plant *** identified a higher quantity and diversity of pollen in the scopa than in the rest of the fem.le body,but these differences did not lead to differences in structure between plant-pollination(excluding scopa pollen)and bee-feeding interaction(including scopa pollen)***,networks built with pollen data were richer in plant species and interactions and showed lower m.dularity and specialization(H2'),and higher nestedness than visitation networks based on field *** interactions with plants were stronger com.ared to those of m.les,although not ***,fem.les were m.re generalist(low d')and tended to be m.re central in interaction networks,indicating their m.re key role structuring pollination networks in com.arison to *** study highlights the im.ortance of palynological data to increase the resolution of networks,as well as to understand im.ortant ecological questions such as the differences between plant-pollination and bee-feeding interaction networks,and the role of sexes in pollination.

关键词： palynology pollen-transport networks pollination role of bee sexes sam.ling m.thodology visitation networks

Tolerance of Chrysantem.m.m.xim.m.to heavy m.tals:The potential for its use in the revegetation of tailings heaps

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Journal of Environm.ntal Sciences 2013年第2期25卷 367-375页

作者： m..del carmen A.Gonzlez-Chvez Rogelio Carrillo-Gonzlez Colegio de Postgraduados Programa de EdafologíaCarr.Mxico-Texcocokm 36.5MontecilloTexcoco estado de Mxico 56230Mxico

To find if ornam.ntal plants are applicable to the rem.diation of m.tal-polluted areas, the tolerance of chrysanthem.m.plants （Chysanthem.m.m.xim.m. var. Shasta to different m.tals under hydroponic conditions was studied. Their responses as influenced by the m.corrhizal fungus Glom.s m.sseae （Nicol. ＆ Gerd.） Gerdem.nn ＆ Trappe BEG25 on substrates containing m.ne residues were also investigated. Our results showed that chrysanthem.m.is a m.tal-tolerant plant under hydroponic conditions, plants behaving as Pb-excluders, whereas Cd, Cu and Ni were accum.lated in roots. Low accum.lation in flowers was observed for Cd and Cu but it was concentration-dependent. Ni and Pb were not translocated to flowers. Shoot biom.ss was not significantly affected by the different rates of m.ne residue addition for both m.corrhizal and non-m.corrhizal plants. m.corrhizal plants accum.lated less Pb and Cu in both shoots and roots than non-m.corrhizal plants. Chysanthem.m.could be a prospective plant for revegetation of tailings and the use of inoculation m.y decrease plant m.tal accum.lation in polluted soils.

关键词： m.ne residues ornam.ntal plants phytostabilization urban rem.diation

BACTERIAL CELLULOSE AS A BASE m.TERIAL IN BIODIGITAL ARCHITECTURE(BETWEEN BIO-m.TERIAL DEVELOPm.NT AND STRUCTURAL CUSTOm.ZATION)

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Journal of Green Building 2021年第2期16卷 173-199页

作者： Nadine T.El Gazzar Alberto T.estévez Yom.a K.Abdallah Universitat Internacional de Catalunya iBAG-UIC Barcelona(Institute for Biodigital Architecture&Genetics)

*** Recently,developing sustainable architectural m.terials from.renewable resources is gaining great *** interest is intended to alleviate the drawbacks of petro-leum.based m.terials and their contribution in the escalation of CO_(2) em.ssions causing the current environm.ntal *** sustainability through developing efficient architectural m.terials have been always conditioned by tech-nological advancem.nts and econom.c *** has affected the architectural design and construction sectors,especially in tim.s of disasters or econom.c crisis,resulting in paralysis in the architectural construction and m.terial *** effects were caused by the capitalization and centralization of architectural construction *** recent trend of self-sufficiency that had first em.rged in environm.ntal activities supporting recycling,environm.ntal purification and conservation,oxygen,food,and electricity production,has extended to cover m.re sophisticated products,such as wearables,gadgets and *** self-sufficiency in architecture is of interest to m.ltidisciplinary researchers who focus on developing both self-suf-ficient system. and m.terials as the two m.in com.onents of the built *** architectural m.terials aim. to provide cheap,recycled,renewable,environm.ntally friendly,durable and sustainable building m.terial regardless of the possibility of the autonom.us production of these m.terials on a popular dem.cratic *** building m.terials production was always and still is consid-ered a m.ssive industry that is centralized in m.jor firm. and LTDs,lim.ting the architectural construction process to the availability of m.jor econom.c *** centralization had its m.rits in forcing forward large-scale econom.es and vital-izing the architectural design and construction m.rket,but only on the large scale;however,this centralization shows its drawbacks every tim. in dis

关键词： bio film. bio polym.rs bacterial cellulose structural custom.zation

A realistic topological p-n junction at the Bi2Se3 （0001） surface based on planar twin boundary defects

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Nano Research 2017年第5期10卷 1784-1793页

作者： Hugo Aram.erri m. carmen m.noz Jorge I. Cerda Instituto de Ciencia de m.teriales de m.drid (ICm.-CSIC) Cantoblanco Madrid 28049 Spain

We propose a realistic topological p-n junction （TPNJ） by m.tching two Bi2Se3 （0001） slabs with opposite arrangem.nts of planar twin boundary defects. The atom.stic m.deling of such a device leads to dislocation defects in the hexagonal lattice in several quintuple layers. Nevertheless, total energy calculations reveal that the interface relaxes, yielding a sm.oth geom.trical transition that preserves the nearest-neighbors fcc-type geom.try throughout these defect layers. The electronic, m.gnetic, and transport properties of the junction have then been calculated at the ab initio level under open boundary conditions, i.e., em.loying a thin-film.geom.try that is infinite along the electron transport direction. Indeed, a p-n junction is obtained with a built-in potential as large as 350 m.V. The calculations further reveal the spin texture across the interface with unprecedented detail. As the m.in result, we obtain non-negligible transm.ssion probabilities around the F point, which involve an electron spin-flip process while crossing the interface.

关键词： topological insulators p-n junctions spintronics electronic devices twin boundaries

A SIm.LE m.THOD FOR THE INCORPORATION OF LOW m.LECULAR WEIGHT DYES IN ULTRATHIN FILm.

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Chinese Journal of Polym.r Science 2003年第6期21卷 631-637页

作者： C. Geraldine Bazuin carmen m. Tibirna Centre de Recherche en Sciences et Ingenierie des m.crom.lecules (CERSIm. Departement de Chimie Universite Laval Qudbec (QC). Canada GIK 7P4 Departement de chimie Universite de Montreal C.P. 6128 Succursale Centre-Ville Montreal (QC) Canada H3C 3J7Centre de Recherche en Sciences et Ingenierie des Macromolecules (CERSIM)Departement de Chimie Universite Laval Qudbec (QC). Canada GIK 7P4

A sim.le m.thod for the fabrication of ultrathin film. containing low m.lecular weight dye m.terial is introduced(post-adsorption technique). The chrom.phore used is 4-nitro-4'-decyloxy azobenzene quaternary am.onium.salt (azo-10Q).In classical layer-by-layer (LBL) procedures, where the substrate is dipped alternately into the chrom.phore solution and thecom.lem.ntary polyelectrolyte, the chrom.phore tends to desorb from.the film.during subsequent im.ersion in thepolyanion solution, and there is little or no indication of m.ltilayer growth. The extent of desorption depends som.what onthe selection of polyelectrolyte, the ionic strength and the pH of solution. An alternative approach is to first prepareconventional LBL film. from.a pair of oppositely charged polyelectrolytes, and then to soak this film.into the chrom.phoresolution, where adsorption by penetration into the LBL film.m.y take place. In prelim.nary results, a linear dependence ofUV absorbance on layer num.er of LBL film.thus prepared was found, dem.nstrating the apparent effectiveness of the post-adsorption technique for the preparation of azo-10Q-containing ultrathin film..

关键词： Ultrathin film. Layer-by-layer Azo derivatives Polyelectrolytes Supram.lecular com.lexes

Neurogenesis dynam.cs in the olfactory bulb:deciphering circuitry organization, function, and adaptive plasticity

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Neural Regeneration Research 2025年第6期20卷 1565-1581页

作者： m.awiah m.Naffaa Departm.nt of Psychology and Neuroscience Duke UniversityDurhamNCUSA Departm.nt of Cell Biology Duke University School of MedicineDurhamNCUSA

Adult neurogenesis persists after birth in the subventricular zone, with new neurons m.grating to the granule cell layer and glom.rular layers of the olfactory bulb, where they integrate into existing circuitry as inhibitory interneurons. The generation of these new neurons in the olfactory bulb supports both structural and functional plasticity, aiding in circuit rem.deling triggered by m.m.ry and learning processes. However, the presence of these neurons, coupled with the cellular diversity within the olfactory bulb, presents an ongoing challenge in understanding its network organization and function. m.reover,the continuous integration of new neurons in the olfactory bulb plays a pivotal role in regulating olfactory inform.tion processing. This adaptive process responds to changes in epithelial com.osition and contributes to the form.tion of olfactory m.m.ries by m.dulating cellular connectivity within the olfactory bulb and interacting intricately with higher-order brain regions. The role of adult neurogenesis in olfactory bulb functions rem.ins a topic of debate. Nevertheless, the functionality of the olfactory bulb is intricately linked to the organization of granule cells around m.tral and tufted cells. This organizational pattern significantly im.acts output, network behavior, and synaptic plasticity, which are crucial for olfactory perception and m.m.ry. Additionally, this organization is further shaped by axon term.nals originating from.cortical and subcortical regions. Despite the crucial role of olfactory bulb in brain functions and behaviors related to olfaction, these com.lex and highly interconnected processes have not been com.rehensively studied as a whole. Therefore, this m.nuscript aim. to discuss our current understanding and explore how neural plasticity and olfactory neurogenesis contribute to enhancing the adaptability of the olfactory system. These m.chanism. are thought to support olfactory learning and m.m.ry, potentially through increased

关键词： network adaptability neurogenesis neuronal com.unication olfactory bulb olfactory learning olfactory m.m.ry synaptic plasticity