Iosvany López-Sandin

• Ph.D Agricultural Science
• Autonomous University of Nuevo León

This study explores the purification, characterization, and application of laccases from Trametes hirsuta CS5 for degrading synthetic dyes as models of emerging contaminants. Purification involved ion exchange chromatography, molecular exclusion, and chromatofocusing, identifying th ree laccase isoforms: ThIa, ThIb, and ThII. Characterization inclu...

Macrolepiota sp. CS185 is a basidiomycete with high potential as a biocontrol agent against various phytopathogenic fungi. Regardless of its pronounced potential as a post-harvest fungi biocontrol agent, its activity in tomato seedlings infected with Alternaria alternata has not been well studied. Thus, the present work aimed to evaluate the cultur...

El objetivo de este trabajo fue la caracterización fisicoquímica y microbiológica del suelo a partir de muestras tomadas a 15 y 45 cm de profundidad antes del establecimiento de los diferentes tratamientos de laboreo y fertilización. En cuanto a los valores observados en los parámetros físico-químicos, no se observaron diferencias estadísticamente...

En el presente trabajo fue evaluado el efecto de los sobrenadantes de Trametes maxima CU1 sobre los parámetros físicos del pan. Para ello, se recuperaron los sobrenadantes de los cultivos de 18 días en un medio mineral suplementado con CuSO4, cáscara de naranja o cacahuete en combinación con paja de trigo, además de la presencia de un co-cultivo co...

My research in the current poster was about how a specific genre of a native fungus of Mexico reacted to different culture media in order to produce enzymes relevant for the agroindustry and waste-water treatment.

The application of the biorefinery concept has contributed to the reduction of the volumes of food waste (FW), considered an economic and environmental problem. The reuse of these residues has made it possible to give them added value and take advantage of them in the production of biofuels and other value-added products. However, during the FW con...

Enzymatic saccharification of pretreated lignocellulosic biomass is a key step in the biochemical biorefineries. To be economically practical for large-scale use, the process must be run at high solids loadings, notably biomass concentrations of more than 15 % (w/v). However, as the solids loading increases, biomass develops a highviscosity slurry...

Sweet sorghum bagasse (SSB) provides a raw material rich in polysaccharides that can be converted into biofuel and other high-value-added bioproducts under the biorefinery concept. The aim of this study was to evaluate the effect of hydrothermal pretreatment on the availability of SSB fermentable sugars for bioethanol production, considering the en...

The introduction of a high concentration of biomass is a significant step to high glucose titter from differently pretreated bagasse via enzymatic hydrolysis (EH) able to overcome with these difficulties. Aim of this project to establishment of strategies to reduce the recalcitrance property along with high solid loading (20%, w/v) of agave bagasse...

Sargassum spp. is a biomass that can potentially use as an alternative for bioethanol production. Hydrothermal processes (liquid hot water and steam explosion pretreatment) were carried out at different operational conditions. Enzymatic hydrolysis performed a preliminary test with different ratios 1:1 and 1:2 (cellulases and hemicellulases) of enzy...

Agave bagasse is a promising and interesting raw material for the development of second-generation biorefineries. However, the intrinsic resistance (recalcitrance) of lignocellulose biomass to enzymatic hydrolysis is a barrier to its effective conversion into fermentable sugars. Therefore, an autohydrolysis process under subcritical conditions is a...

El uso de enzimas como α-amilasas, xilanasas y glucosidasas es una buena alternativa para obtener una mayor eficiencia en los productos de la industria panificadora, sin dejar de mencionar la lacasa que ha mostrado un potencial prometedor. Así, el objetivo de este estudio fue obtener concentrados enzimáticos de xilanasas, amilasas, celulasas y laca...

Sweet sorghum (Sorghum bicolor [L.] Moench) is a crop that is well known for its high production of biomass and sugars in the stem juice. The objective of this work was to evaluate the productivity of sweet sorghum ‘Roger’ based on the dynamics of sugar production and dry biomass by considering different production methods and plant phenological st...

Sweet sorghum Sorghum bicolor (L.) Moench) is a promising crop for bioethanol production characterized by its high biomass yield, sugar-rich stalks, facile juice extraction, and ability to adapt to different production systems. The objective of this study was to assess the effects of cultivation practices (soil treatments) on the juice, sugar, and...

The aim of this study was to identify a Mexican native basidiomycete strain with antagonistic potential against phytopathogenic fungi. The antifungal activity of fifteen isolates against Fusarium oxysporum, Fusarium solani, Colletotrichum truncatum, Colletotrichum coccodes, Colletotrichum sp., Stemphylium solani, Botrytis cinerea, Epicoccum nigrum,...

Laccases have attracted a great deal of interest because of their remarkable ability for the degradation of synthetic dyes present in wastewaters. New laccase producing sources with robust operational and functional properties are being continuously explored. In this work, the potential for the decolorization and detoxification of synthetic dyes wa...

The growing global demand for energy and the reduction of energy based on oil are driving the search for new sources of energy that are environmentally friendly. To achieve this goal, it is also necessary to optimize the related processes. In this study, the behavior of the agronomic parameters of, and the energy invested in, production systems bas...

El siguiente trabajo se realizó en la UBPC San Pablo, en el municipio Vertientes, de la provincia de Camagüey, entidad destinada a la producción de caña de azúcar. Con el objetivo de evaluar los índices técnicos-explotativos y energéticos de las cosechadoras de caña de azúcar CASE IH A 8800, se aplicaron normas y metodologías, que permitieron deter...

El siguiente trabajo se realizó en el municipio Ciro Redondo de la Provincia Ciego de Ávila, donde la mayor parte de la producción cañera se realiza bajo sistema de riego por máquina de pivote central, específicamente del modelo AGROCAJA. El objetivo del mismo es determinar la energía consumida por las máquinas de pivote central eléctricas AGROCAJA...

En la empresa agropecuaria “El Mambí” del municipio Ciego de Ávila las labores agrícolas al cultivo del Frijol se realizan de forma mecanizada, implicando un alto consumo de energía, que podría ser improductivo si no se explota eficientemente la maquinaria. El objetivo de esta investigación consiste en determinar la eficiencia energética en el cult...

En el siguiente trabajo se realiza la evaluación técnico explotativa de una nueva gama de tractores de la marca FOTON en las labores de preparación de suelos en la empresa de cultivos varios «La Cuba», se utilizó una metodología de cálculo analítico. Dentro de los resultados podemos abordar que de todas las labores, la aradura ostenta el mejor apro...