Papers by Otilio A Acevedo Sandoval
Fermentation of barley wort with Saccharomyces boulardii to generate a beverage with probiotic potential
Future foods, Jun 1, 2024
Revista Mexicana De Ingenieria Quimica, Oct 18, 2023
del petróleo intemperizados en suelos y sedimentos (Biodegradation modeling of sludge bioreactors... more del petróleo intemperizados en suelos y sedimentos (Biodegradation modeling of sludge bioreactors of total petroleum hydrocarbons weathering in soil and sediments)
Hydrometallurgy, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Toxics
Human beings and wild organisms are exposed daily to a broad range of environmental stressors. Am... more Human beings and wild organisms are exposed daily to a broad range of environmental stressors. Among them are the persistent organic pollutants that can trigger adverse effects on these organisms due to their toxicity properties. There is evidence that metabolomics can be used to identify biomarkers of effect by altering the profiles of endogenous metabolites in biological fluids or tissues. This approach is relatively new and has been used in vitro studies mainly. Therefore, this review addresses those that have used metabolomics as a key tool to identify metabolites associated with environmental exposure to POPs in wildlife and human populations and that can be used as biomarkers of effect. The published results suggest that the metabolic pathways that produce energy, fatty acids, and amino acids are commonly affected by POPs. Furthermore, these pathways can be promoters of additional effects. In the future, metabolomics combined with other omics will improve understanding of the ...
Optimization of the Process for Obtaining Biodiesel from Seeds of Ricinus communis using Basic Heterogeneous Catalyst in Transesterification
Applied Engineering in Agriculture, 2022
. Castor bean (Ricinus communis) can be a high-demand crop for the production of biodiesel, an al... more . Castor bean (Ricinus communis) can be a high-demand crop for the production of biodiesel, an alternative biofuel similar to conventional diesel. The objective of the work has been to optimize the method of obtaining biodiesel from a “green technology” process, directly splitting the seeds of three macerated castor varieties, without prior extraction of the oil with n-hexane as is traditional. Also using low-cost heterogeneous basic catalysts, friendly to the environment. It has been shown that it is feasible to obtain biodiesel as an eco-fuel from castor beans directly, without prior oil extraction with the consequent saving of n-hexane solvent and the non-use of sodium hydroxide. It is feasible to substitute methanol for ethanol (less toxic and cheaper), and as a novel aspect, the use of BaCO3 as a heterogeneous catalyst, not reported in any reference of those consulted. Yield percentages ranging between 31% and 45% were obtained, comparable to those obtained from previous oil extractions. It was concluded that of the three varieties of castor bean evaluated, the variety HG-A-1 (collected in Atotonilco el Grande, Municipality of the State of Hidalgo) classified as IBEA type, is the one that presents the best results. Keywords: Barium carbonate, Castor oil, Eco-fuel, Ethanol, Seed.
Agro Productividad, 2021
The spatial distribution of physical, chemical and biological soil, affecting crop yields, howeve... more The spatial distribution of physical, chemical and biological soil, affecting crop yields, however, the spatial dependence of soil biological parameters has been little explored. A study was conducted to establish the influence on soil fertility showed spatial variations of physical, chemical and biological properties of two agricultural soils in Hidalgo State (Mexico), belonging to the order Cambisol with low clay content activity. Soils A, (with a phase-clay-sandy, shallow horizon imperfect drainage), the municipality of Apan and soil B (with a light phase and thick, with stones), the municipality of Emiliano Zapata, were sampled in a network of 10x10m at 10, 20 and 40 cm deep. Were determined by physical, chemical and biological both soils. Geostatistical analyzes were performed using SPSS version 17.0. Texture, soil moisture and organic compounds changes affect the spatial distribution of the physical, chemical and biological properties of soils tested. The spatial variability o...
Foods
Cereals have phytochemical compounds that can diminish the incidence of chronic diseases such as ... more Cereals have phytochemical compounds that can diminish the incidence of chronic diseases such as hypertension. The angiotensin-converting enzyme 2 (ACE2) participates in the modulation of blood pressure and is the principal receptor of the virus SARS-CoV-2. The inhibitors of the angiotensin-converting enzyme (ACE) and the block receptors of angiotensin II regulate the expression of ACE2; thus, they could be useful in the treatment of patients infected with SARS-CoV-2. The inferior peptides from 1 to 3 kDa and the hydrophobic amino acids are the best candidates to inhibit ACE, and these compounds are present in rice, corn, wheat, oats, sorghum, and barley. In addition, the vitamins C and E, phenolic acids, and flavonoids present in cereals show a reduction in the oxidative stress involved in the pathogenesis of hypertension. The influence of ACE on hypertension and COVID-19 has turned into a primary point of control and treatment from the nutritional perspective. The objective of thi...
ADMET prediction, Docking, DM analysis and antibacterial screening of epoxy furan-clerodanes from Croton hypoleucus
Journal of Molecular Structure
Revista de la Facultad de Ciencias
Lignocellulosic biomass is a promising alternative and renewable energy source that can be transf... more Lignocellulosic biomass is a promising alternative and renewable energy source that can be transformed into other value-added products such as activated carbon. The objective was to evaluate the barley husk (Hordeum vulgare L.), the corn cobs (Zea Mays L.) and the agave leaves (Agave salmiana) as potential precursors of activated carbon. These precursors were obtained from Almoloya and Apan in the State of Hidalgo, Mexico. The raw materials were washed with distilled water, dried at 105 ºC for 72 h in an oven, ground in a blade mill to obtain a particle size of 0.3-1.0 mm and finally sieved through mesh sieves of 18 and 45. Humidity was determined according to ASTM D3173 (ASTM, 1996), ash according to ASTM D3174 (ASTM, 2000), volatile matter according to ASTM D3175 (ASTM, 1997), fixed carbon according to ASTM D3172 (ASTM, 1997), total sugars and fats according to TAPPI T204 (TAPPI, 1997), Klason Lignin according to TAPPI T222 (TAPPI, 1998), holocellulose according to the method de...
Materials, 2022
The present work is related to the treatment of crushed waste of printed circuit boards (WPCBs) f... more The present work is related to the treatment of crushed waste of printed circuit boards (WPCBs) from electrical and electronic devices (WEEE), carrying out the recovery of copper in solution. In the first stage, the studied material was characterized by AAS, SEM-EDS, and XRD. The results revealed significantly high amounts of copper (744.42 mg/g), compared with the rest of the metals present in the sample, mainly iron and zinc. In the second stage of the work, alkali dynamic leaching experiments were carried out in the S2O3−2− O2 medium, evaluating important kinetic variables in order to verify the controlling step of the system and adjust the data to a kinetic model. According to the results obtained from the various experimental tests executed, it was found that in the studied system of S2O3−2− O2, the leaching of copper was preferably adjusted to the model of spherical particles with a shrinking core finding a mixed chemical–diffusive control, with values of Ea = 25.78 kJ/mol and...
Mineralogía, petrografía y micromorfología de horizontes árgicos endurecidos en Luvisoles
Recovery of Waste of Construction, Demolition and Mining Tailings
The reuse of construction and demolition waste (CDW) is an economic strategy that is practiced in... more The reuse of construction and demolition waste (CDW) is an economic strategy that is practiced in most industrialized countries to add value to solid waste. The ability to retrieve and combine them with mining waste (tailings) in the reprocessing of new rock aggregates implies a high economic effect and a new source of employment. The aim of this work has been to present a technical-economic feasibility study for this purpose. The results indicate that a plant design capacity of 61T/h would have an initial investment of $24 543 377.73 Mexican pesos (about $1 817 828.00 U.S. dollars) with annual revenues of $1 500 000.00 minimum and a maximum recovery in 16 years. Retrieving and marketing materials that often accompany CDW, annual earnings can be as high as $12 500 000.00 and an accelerated recovery in 2 years.
Caracterización de tres suelos en Hidalgo y Querétaro, México: disponibilidad y daño tóxico por arsénico en garbanzo (Cicer arietinum L.)
Pädi Boletín Científico de Ciencias Básicas e Ingenierías del ICBI, 2019
El sector agrícola enfrenta diferente retos relacionados con los efectos del cambio climático, la... more El sector agrícola enfrenta diferente retos relacionados con los efectos del cambio climático, la degradación de los recursos naturales, la disminución del agua y tierra cultivable disponible la aplicación de las Tecnologías de la Información y las Comunicaciones unidas al procesamiento de los datos ofrece alternativas para adaptar los sistemas de producción. El Internet de las Cosas integrado por las tecnologías de sensores, actuadores, redes de comunicación y procesamiento de cómputo, brindan mejores oportunidades para recolectar y analizar datos de los campos de cultivo. Y con este conjunto de datos es posible diseñar herramienntas para la toma de decisiones. En este artículo se presenta un análisis comparativo de las tecnologías de hardware, comunicación y almacenamiento de datos utilizadas para aplicar el Internet de las Cosas en la agricultura.
International Journal of Environmental Research and Public Health
17β-estradiol (E2) is the natural estrogen with the most significant potential for endocrine disr... more 17β-estradiol (E2) is the natural estrogen with the most significant potential for endocrine disruption in the biota of aquatic ecosystems at trace concentrations. It is, therefore, essential to study treatments for water polluted with E2 that would guarantee its complete elimination and mineralization. Denitrification is a biological process shown to have the capacity to completely biodegrade drugs, such as ampicillin. This work is aimed to evaluate the biotransformation of 17β-estradiol by employing a denitrifying sludge. The assays performed were: (I) abiotic with 3.5 mg E2-C L−1 and (II) denitrifying with 10 mg CH3COO−-C L−1 as the reference, 10 mg E2-C L−1 as the sole electron donor, and a mixture of (mg L−1) 10 E2-C with 10 CH3COO−-C at C N−1 of 1.1. The E2-C and NO3−-N consumption efficiencies were greater than 99%, and HCO3−-C and N2 production yields were close to 1 in all assays. The denitrifying sludge could biodegrade up to 10 mg E2-C L−1 as the sole electron donor and w...
International Journal of Plant Biology
Microorganisms represent a viable option for the control of phytopathogens. From the surface of h... more Microorganisms represent a viable option for the control of phytopathogens. From the surface of healthy mangoes, different bacteria were isolated. For all isolated bacterial strains, we determined their antimicrobial activity against a fungal strain that caused anthracnose in mangoes and against Alternaria alternata, both in the culture medium and directly on mangoes. The bacterial strains with the highest antifungal activity were identified by sequencing the 16s rRNA gene. Two species of Serratia were identified: marcescens and nematodiphila. Finally, the chitinolytic, glucanolytic, and cellulolytic activity and prodigiosin production of bacteria with antifungal activity was determined. Five fungal strains were isolated from mangoes with anthracnose. Only one strain was responsible for anthracnose in mangoes. This fungal strain was identified as Colletotrichum siamense. Against C. siamense and A. alternata in vitro and in mango selected strains of Serratia showed antifungal activit...
Boletin De La Sociedad Botanica De Mexico, 2020
Antecedentes: Se han hecho observaciones empíricas de que el fuego favorece la regeneración natur... more Antecedentes: Se han hecho observaciones empíricas de que el fuego favorece la regeneración natural en muchos pinares. Sin embargo, esto se ha demostrado en pocas especies experimentalmente. Preguntas y/o Hipótesis: ¿Favorece el fuego la regeneración de la especie estudiada?, ¿cómo cambia la densidad de ésta los primeros años? Especies de estudio/Descripción de datos/Modelo matemático: Pinus montezumae Lamb. Densidad de la regeneración y profundidad de la capa de hojarasca. Correlación de Pearson, pruebas de Kruskal-Wallis y de Wilcoxon. Sitio y años de estudio: Ejido Santo Tomás, Singuilucan, Hidalgo. De 2011 a 2013. Métodos: A 9, 21 y 27 meses de una quema prescrita (QP) y a 30, 42 y 48 meses de un incendio (IF) y áreas testigo sin quemar (T), se muestrearon 56 parcelas de 1 m2 por tratamiento. Resultados: Se obtuvo una correlación de Pearson negativa (r = -0.648) significativa (P ≤ 0.01), la cual demostró que a mayor espesor de hojarasca, menor densidad de regeneración. En casi t...
Through a literature review, the problems that arise with soil salinization in arid and semiarid ... more Through a literature review, the problems that arise with soil salinization in arid and semiarid areas mainly and especially the case of Mexico were analyzed. The origin is assessed, the principles for the recovery of salinized soil, biremediación and current technologies. Also, some future projections for these processes are shown. Finally, it is concluded that the issue of soil bioremediation, is relatively recent and several of the technologies applied are still in test mode since its effectiveness in many cases has to do with the soil and climatic conditions of the region where used. Technologies can be varied, as used it refers to the application of washes the floor and the supply of gypsum as amended. Something a little more recent but equally longer used is the application of compost as a means to reclaim saline soil. Most remediation technologies and companies dedicated to providing these services are dedicated almost exclusively to treat soils that have been contaminated by...
DYNA, 2017
El agave es una especie no maderable, que puede ser utilizada para la extracción de celulosa. Se ... more El agave es una especie no maderable, que puede ser utilizada para la extracción de celulosa. Se han realizado trabajos que reportan la elaboración de papel a partir de fibras de seis especies de agaves: A. lechuguilla, A. Angustifolia, A. tequilana, A. americana, A. salmiana y A. mapisaga, utilizando diferentes métodos para la extracción de fibras. Sus resultados indican que A. salmiana y A. mapisaga fueron las especies que presentaron mejores características para la posible elaboración de papel. En este trabajo se buscó crear un nuevo valor agregado a las hojas residuos de agavaceas de la agroindustria de elaboración del pulque, a partir de A. salmiana B. Otto ex Salm. Con este propósito se obtuvo pulpa de celulosa por dos métodos: pulpeo alcalino y el método conocido como Organosolv. Se evaluaron las características y eficacias de los procesos bajo un estudio de optimización. Como resultado, se concluye que las condiciones óptimas y reproducibles para obtener pulpa de celulosa de...
Pädi Boletín Científico de Ciencias Básicas e Ingenierías del ICBI
El manejo sustentable de cuencas hidrológicas implica poner en marcha un plan de desarrollo sujet... more El manejo sustentable de cuencas hidrológicas implica poner en marcha un plan de desarrollo sujeto a continuo monitoreo y ajuste, la evaluación adecuada de este depende de los indicadores e índices disponibles. En la selección de un conjunto de indicadores relevantes, se debe determinar que ajuste adecuadamente al problema a describir y que diagnostique las limitaciones o alcances del manejo establecido. El desarrollo de este trabajo tiene como objeto proporcionar información de interés que permita superar la incertidumbre durante el proceso de identificación y selección de indicadores para la evaluación de una cuenca hidrológica. Como procesos de selección resaltan la planeación participativa y la obtención de una primera aproximación de indicadores a través de revisiones de literatura. Mediante la revisión realizada se reconoce el uso del índice de sustentabilidad de cuencas como el más usado, también se usó un conjunto de indicadores no agregados para definir la situación de la c...
Uploads
Papers by Otilio A Acevedo Sandoval