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Addition of phenolic compounds to bread: antioxidant benefits and impact on food structure and sensory characteristics

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Food Production, Processing and Nutrition 2021年第1期3卷 314-325页

作者： Yesica A.Czajkowska–González Emilio Alvarez–Parrilla Nina del Rocío martínez–Ruiz alma A.Vázquez–Flores Marcela Gaytán–martínez Laura Ade la Rosa Departament of Chemical Biological Sciences Institute of Biomedical SciencesUniversidad Autónoma de Ciudad JuárezAnillo Envolvente del PRONAF y Estocolmos/nC.P.32310 Cd.JuárezMéxico Programa de Posgrado en Alimentos del Centro de la República(PROPAC) Research and Graduate Studies in Food ScienceSchool of ChemistryUniversidad Autónoma de QuerétaroCentro UniversitarioCerro de las Campanas S/NC.P.76010 Santiago de QuerétaroMexico

The use of flours or phenolic extracts obtained from non-traditional sources or agri-food industry by-products has been a strategy used to formulate new bakery products with characteristics of a functional ***,phenolic compounds present great structural diversity,as well as the ability to interact in a complex way with the macromolecules that constitute the bread ***,the addition of these flours,extracts or pure compounds produces various effects on the microstructure of bread,and several of its sensory *** is mainly due to interactions between phenolic compounds and gluten *** objective of this review is to analyze some of the most recent published works on the addition of phenolic compounds in wheat bread to identify the type of positive and negative effects that have been observed and how they can be related to the physicochemical interactions between phenolic compounds and the macromolecules that constitute the food matrix,mainly *** effect of monomeric and polymeric phenolic compounds on the strength of these interactions and on the properties of dough and bread are discussed.

关键词： condensed tannins hydrolysable tannins phenolic acids gluten food rheology food texture protein-phenolic interactions disulfide bonds non-covalent interactions

Maize seed coatings and seedling sprayings with chitosan and hydrogen peroxide:their influence on some phenological and biochemical behaviors

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第2期14卷 87-96页

作者： Eva-Guadalupe LIZRRAGA-PAULíN Susana-Patricia MIRANDA-CASTRO Ernesto MORENO-martínez alma-Virginia LARA-SAGAHóN Irineo TORRES-PACHECO Laboratorio de Biotecnología Facultad de Estudios Superiores CuautitlánCampo 1Universidad Nacional Autónoma de MéxicoEstado de México 54740México Unidad de Investigación en Granos y Semillas Facultad de Estudios Superiores CuautitlánCentro de Asimilación TecnológicaUniversidad Nacional Autónoma de MéxicoEstado de México 54740México CA Ingeniería de Biosistemas División de Investigación y PosgradoFacultad de IngenieríaUniversidad Autónoma de QuerétaroQuerétaro 76010México

Objective： To evaluate the effect of chitosan （CH） and hydrogen peroxide （H2O） seed coatings and seedling sprinklings on two different maize varieties by measuring their phenology, the H202 presence, the catalase （CAT） activity, and the protein quantity. Methods： Seven groups of ten seeds for each maize variety were treated with CH （2% （20 g/L） and 0.2% （2 g/L）） or H2O2 （8 mmol/L） by coating, sprinkling, or both. Germination and seedling growth were measured. One month after germination, the presence of H202 in seedlings in the coated seed treatments was evaluated. Protein content and CAT activity were determined under all treatments. Results： H2O2 seed coating en- hanced the germination rate and increased seedling and stem length in the quality protein maize （QPM） variety. Seedlings had a higher emergence velocity under this treatment in both varieties. CH and H2O2 sprinklings did not have an effect on seedling phenology. Exogenous application of H2O2 promoted an increase of endogenousH2O2. OH and H2O2seedling sprinkling increased the protein content in both maize varieties, while there was no significant effect on the CAT activity of treated seeds and seedlings. Conclusions： CH and H2O2 enhance some phenological and biochemical features of maize depending on their method of application.

关键词： Zea mays Chitosan Hydrogen peroxide Phenology Catalase Protein

Cholinergic neuromuscular junctions in Brachionus calyciflorus and Lecane quadridentata(Rotifera:Monogononta)

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Journal of Coastal Life Medicine 2014年第5期 376-381页

作者： Ignacio Alejandro Pérez-Legaspi alma Lilián Guerrero-Barrera Iván JoséGalván-Mendoza JoséLuis Quintanar Roberto Rico-martínez Graduate Studies and Research Division Boca del Río Institute of TechnologyKm.12 Carr.Veracruz–Córdoba94290Boca del RíoVer.México Morphology Department Basic Sciences CenterAguascalientes Autonomous UniversityAve.Universidad 940Aguascalientes20100México Confocal Microscopy Unit Experimental Services DepartmentCINVESTAV-ZacatencoNational Politechnic InstituteAve.Politécnico2508Zacatenco56000MéxicoD.F.México Pharmacology and Physiology Department Aguascalientes Autonomous UniversityAve.Universidad 940Aguascalientes20100México Chemistry Department Basic Sciences CenterAguascalientes Autonomous UniversityAve.Universidad 940Aguascalientes20100México

Objective:To identify the presence of joint muscular and cholinergic systems in two freshwater rotifer species,Brachionus calyciflorus and Lecane ***:The muscle actin fibers were stained with phalloidin-linked fluorescent dye,and acetylcholine was detected with Amplex Red Acetylcholine/Acetylcholinesterase Assay Kit,and then confocal scanning laser microscopy was ***:The musculature of Brachionus calyciflorus showed a pattern similar to other species of the same genus,while that of Lecane quadridentata was different from other rotifer genera described *** cholinergic system was determined by co-localization of both muscles and acetylcholine labels in the whole rotifer,suggesting the presence of neuromuscular ***:The distribution pattern of muscular and acetylcholine systems showed considerable differences between the two species that might be related to different adaptations to particular ecological *** confirmation of a cholinergic system in rotifers contributes to the development of potential neuro-pharmacological and toxicological studies using rotifers as model organism.

关键词： Acetylcholine Co-localization Confocal microscopy F-actin Rotifer

Conditioned Taste Aversion Diminishes Sugar Intake

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Food and Nutrition Sciences 2014年第11期5卷 997-1004页

作者： alma Gabriela martínez Moreno Antonio López-Espinoza Imelda de León López Laura Vanesa Solano Santos Fernando Hernández- Leonardo Behavioral Feeding and Nutrition Research Center CUSur University of Guadalajara Ciudad Guzmán México

Animals learn to avoid particular food when some of its sensory properties are associated with gastrointestinal discomfort. Twenty rats were exposed to free access to food and a sugar solution for ten days in first phase. During second phase, experimental group received a dose of LiCl. Control group received an injection without LiCl. Both groups had free access to a sugar solution and food restriction for three days. In the final phase, both groups returned to the conditions of first phase. Results showed a significant decrease in sugar intake after aversive conditioning regarding the intake registered in the initial phase in experimental group. Control group did not show any differences in its sugar intake before and after the experimental manipulation. The procedure carried out is discussed as a means to decrease sugar intake.

关键词： Sugar LiCl Conditioned Taste Aversion Rats

Feeding Behavior, Body Weight and Growth Rate during Post-Deprivation Period in Rats

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Food and Nutrition Sciences 2015年第14期6卷 1307-1315页

作者： Antonio López-Espinoza alma Gabriela martínez Moreno Virginia Gabriela Aguilera Cervantes Elia Valdé s Miramontes Luis Alfonso Mojica Contreras Monica Navarro-Meza Claudia Patricia Beltrán-Miranda Ana Cristina Espinoza-Gallardo Behavioral Feeding and Nutrition Research Center (CICAN) CUSur University of Guadalajara Guadalajara M&eacute xico

Deprivation is an environmental experience that organisms are continually exposed to. However, few studies analyze deprivation effects on the consumption pattern during the post-deprivation period systematically. The aim of this study was to evaluate the deprivation effect on feeding pattern, growth rate and body weight during post-deprivation. Sixteen albino rats (3 months old at the beginning of the experiment) were exposed to 72-hour total food deprivation every 15 days. Food and water were freely available during non-deprivation periods. Rats completed three cycles comprised by a free access period followed by food deprivation. Once deprivation was removed, food and water consumption increased and then decreased, while body weight was recovered. Growth rate increased after every deprivation period and reached similar levels to those presented by the control group. Depriving rats from one commodity (i.e., food) cause them to restrain their consumption of the other freely available commodity (i.e., water). Results confirm that food deprivation modifies growth rate, water and food consumption. Additionally, during post-deprivation period, differences between males and females were not registered.

关键词： Body Weight Food Intake Water Intake Post-Deprivation Period Growth Rate

F-Actin Distribution Changes Provoked by Acetaminophen in the Proximal Tubule in Kidney of Adult Male Rat

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Microscopy Research 2016年第3期4卷 39-45页

作者： Fernando Jaramillo-Juárez Jose Roberto Macías-Pérez Ma. Consolación martínez-Saldaña Francisco Javier Avelar-González Víctor Manuel Loera-Muro Edgar Eduardo Hernández-Cuéllar Francisco Jaramillo Higinio Manuel González Reynaga alma Lilian Guerrero-Barrera Departamento de Fisiologia y Farmacologia Centro de Ciencias Basicas Universidad Autonoma de Aguascalientes Aguascalientes Mexico Departamento de Morfologia Centro de Ciencias Basicas Universidad Autonoma de Aguascalientes Aguascalientes Mexico

Acetaminophen is a drug used to treat many conditions as headache, muscle aches, arthritis, backache, toothache, and fever between others, but collateral effects of this drug are not well known yet. Here is tested its effect on proximal tubule epithelium. Acetaminophen (APAP) at doses of 200, 500, 1000 and 1500 mg/Kg i.p. caused cell damage and changes in F-actin distribution in the proximal tubule of male Wistar rats. After 48 hours of treatment, the proximal tubule epithelium showed tumefaction and necrosis. Dose of 200 mg/kg decreased the F-actin and was observed a structure in patches in the basal cytoplasm of epithelial cells of the proximal tubule. This effect was increased depending on the administered dose. Dose of 1000 mg/kg produced the highest histological damage and changes in the actin cytoskeleton. Results of this study suggested that nephrotoxic damage produced by high doses of APAP included breakdown of cytoskeleton in proximal tubule epithelium.

关键词： Acetaminophen Cytoskeleton Proximal Tubule Kidney Damage