Search results for "reserva"
showing 10 items of 630 documents
Inactivation of conidia of Penicillium chrysogenum, P. digitatum and P. italicum by ethanol solutions and vapours
2008
A fractional factorial design, 2(5-1) experiments, was used for assessing the influence of 5 factors: water activity, aw [0.7, 0.9], temperature, T ( degrees C) [10, 30], mode of application, A [liquid, vapour], ethanol concentration, E (% w/w) [5, 10] and time, t (d) [1, 4] on the inactivation of spores of Penicillium chrysogenum, P. digitatum and P. italicum. Survival was determined by germination at optimal conditions within 3d. The experimental response was log (N 0/Nt), where N 0 and Nt (spore ml(-1)) the concentrations of viable spores at t=0 and t respectively. By a decreasing order of sensitivity to ethanol, moulds were ranked as followed: P. digitatum, P. italicum and P. chrysogenu…
Modeling the effect of ethanol vapor on the germination time of Penicillium chrysogenum.
2005
The influence of ethanol vapor on germination of Penicillium chrysogenum was determined on yeast nitrogen base plus glucose agar medium at 25 degrees C. Ethanol vapors were generated by 0 to 6% (wt/wt) ethanol solutions at the bottom of hermetically closed petri dishes. The logistic equation was used to describe the data as the percentage of germination versus time and to estimate the germination time. The effect of ethanol concentration on germination time was described by a new reparameterized equation, resulting in an estimated limiting ethanol concentration of 4.3%. Up to 3% ethanol, all spores germinated, and the germination time increased with increasing ethanol concentration. At 3.5 …
Application of non-invasive technologies in dry-cured ham: An overview
2019
Background: Dry-cured ham is one of the most valued food products by Mediterranean consumers. In this sense, the appropriate development of its different production stages is essential to ensure the quality requirements. For this reason, non-invasive technologies have gained popularity and have been reported as useful not only to ensure the food safety of different products, but also to monitor fundamental stages in the production process, such as the salting stage, to analyze the content of different compounds without sample losses, and to correct possible defects in the final product. Scope and approach: This work has been focused on summarizing the studies that describe and have successf…
Nouvelles stratégies de stabilisation des bactéries extrêmement sensibles à l’oxygène : cas du probiotique Faecalibacterium prausnitzii.
2016
Intestinal bacteria are of growing interest in the areas of health and wellness [1, 3]. The intestinal ecosystem is characterized by its complex composi-tion and its very low oxygen content. Therefore, nu-merous bacterial species isolated from this environ-ment are extremely sensitive to oxygen. This feature is responsible for the difficulty of implementation of these microorganisms for probiotic large-scale appli-cations, particularly during processing and storage. In this presentation, we present the main steps that have been overcome to conserve and design a stabilization strategy for the bacteria Faecalibacterium prausnitzii, recognized for their anti-inflammatory activities intestinal …
"Lights and Shades" of Fertility Preservation in Transgender Men Patients: A Clinical and Pathological Review
2023
Fertility preservation (FP) is becoming a critical issue in transgender men who desire biological offspring in the future. The prevalence of transgender individuals in the United States is increasing, and as a result, the demand for gender-affirming surgeries (GAS) and associated FP techniques is rising. Despite the growing demand, there is currently no personalized approach to FP for transgender men, and the available techniques have limitations that require further investigation. In the present review we carefully examine the existing literature on this topic to highlight the shortcomings of current methods and areas where additional research is needed to advance the field. Hormonal thera…
Liver Preservation by Aortic Perfusion Alone Compared With Preservation by Aortic Perfusion and Additional Arterial Ex Situ Back-Table Perfusion With…
2017
Background. Arterial ex situ back-table perfusion (BP) reportedly reduces ischemic-type biliary lesion after liver transplantation. We aimed to verify these findings in a prospective investigation. Methods. Our prospective, randomized, controlled, multicenter study involved livers retrieved from patients in 2 German regions, and compared the outcomes of standard aortic perfusion to those of aortic perfusion combined with arterial ex situ BP. The primary endpoint was the incidence of ischemic-type biliary lesions over a follow-up of 2 years after liver transplantation, whereas secondary endpoints included 2-year graft survival, initial graft damage as reflected by transaminase levels, and fu…
Evaluación de la eficacia de la administración del antioxidante n-acetilcisteína en pacientes trasplantados de hígado
2018
El trasplante hepático(TH) es el tratamiento de elección en las enfermedades hepáticas en estadio terminal, sin embargo, el desequilibrio entre el número de donantes y pacientes en lista de espera ha conducido a las diferentes unidades de trasplante a la utilización de injertos procedentes de donantes con criterios extendidos. Esta práctica, se ha traducido en una reducción de la tasa de mortalidad entre los pacientes en lista de espera, a expensas de un aumento de las complicaciones post-trasplante, como la disfunción temprana del injerto. Dicha complicación influye negativamente tanto en la evolución del paciente como del injerto después del traplante. Sin embargo, sigue sin existir actua…
The Multi-period Multi-trip Container Drayage Problem with Release and Due Dates
2021
Abstract The Container Drayage Problem (CDP) aims at routing a fleet of trucks, based at a common terminal, to serve customers while minimizing the total travel distance. Each trip starts from and ends at the terminal, and handles a subset of customers. Each customer requires either that a container is picked up or delivered. We introduce a more realistic variant, i.e., the Multi-trip Multi-period CDP with Release and Due Dates (MM-CDP-RDD), in which the planning horizon is composed of several periods (days). On each day, each truck may perform more than one trip respecting the Release and Due Dates (RDD) associated with customer services, corresponding to the first and the last day on whic…
Programa de preservación de fertilidad en niñas y adolescentes con cáncer. Momento óptimo de realización de la criopreservación ovárica en pacientes …
2015
Los avances de la terapia antineoplásica han llevado a un significativo aumento de los índices de supervivencia en las últimas décadas, especialmente en el ámbito del cáncer pediátrico. El objetivo en este momento es ofrecer una recuperación completa y segura, con aceptable calidad de vida y una reintegración plena en la sociedad. Desde el punto de vista endocrino-gonadal, sabemos que algunos de los tratamientos utilizados en el cáncer infantil, pueden ocasionar fallo ovárico prematuro (FOP). La capacidad de reproducción en el ser humano, no se considera un valor trivial y se relaciona de forma clara con las sensaciones de bienestar y de autonomía personal. Paralelamente en los últimos años…
Función vesical y calidad de vida tras histerectomía radical con preservación nerviosa en pacientes con cáncer de cérvix. en pacientes con cáncer de …
2015
A nivel mundial, aproximadamente medio millón de mujeres son diagnosticadas anualmente de cáncer de cérvix . La supervivencia a los 5 años de esta enfermedad, es superior al 90 % en los estadios precoces, lo cual ha hecho que se dirija la atención a la calidad de vida que tienen estas pacientes. La edad de las pacientes y el buen pronóstico hace que, además de asegurar buenos resultados oncológicos, se requiera como objetivo asegurar una mínima invasión y se persiga minimizar los efectos secundarios y secuelas derivadas del tratamiento . La cirugía radical del cáncer de cérvix inicial tiene como objetivo el extirpar el cérvix y el cuerpo uterino junto con el tejido paracervical y parametria…