Aprovechamiento sustentable de residuos y subproductos

Evaluation of diluted acid hydrolysis for sugar extraction from cooked and uncooked Agave tequilana bagasse and feasibility of using the hydrolysates as substrate for methane production, with and without nutrient addition, in anaerobic sequencing batch reactors (AnSBR) were studied. Results showed... Leer +

The main problem linked to the stability of upflow anaerobic sludge blanket (UASB) reactors during the treatment of Tequila vinasse is the high acidity and the null alkalinity present in this effluent. This research evaluates the effect of alkalinity and volatile fatty acids (VFAs) concentration on... Leer +

Tequila vinasses represent an acidic, highly concentrated pollutant effluent generated during the distillation step of Tequila production. Athough acidogenesis of Tequila vinasses has been reported for some reactor configurations, a characterization of the bacteria present during this metabolic... Leer +

Previous studies have reported that complexity of the substrate, type of inoculum and reactor configuration strongly affect fermentative hydrogen production. Therefore, the aim of this study was to evaluate the effect of simple (glucose, xylose and sucrose) and complex (acid and enzymatic oat straw... Leer +

Previous studies have reported that complexity of the substrate, type of inoculum and reactor configuration strongly affect fermentative hydrogen production. Therefore, the aim of this study was to evaluate the effect of simple (glucose, xylose and sucrose) and complex (acid and enzymatic oat straw... Leer +

The operation of anaerobic digestion (AD) has a strong dependence on reliable information about the state variables and kinetic parameters. Such a dependence can lead the AD to restrictions for the implementation of advanced monitoring and automatic control schemes; with consequent implications at... Leer +

The main use of bagasse is to produce compost in tequila factories with a long traditional composting that lasts 6–8 months. The aim of this study was to evaluate the degradation of agavebagasse by combining a pretreatment with fungi and vermicomposting. Experiments were carried out with... Leer +

Anaerobic processes have been used for the stillage treatment, although the effluent of these processes still has a remnant of organic matter measured as Chemical oxygen demand (COD) and Biochemical oxygen demand (BOD), which must be treated to reduce its environmental impact, and constructed... Leer +

The goal of this research is to find a more effective treatment for tequila vinasses (TVs) with potential industrial application in order to comply with the Mexican environmental regulations. TVs are characterized by their high content of solids, high values of biochemical oxygen demand (BOD 5),... Leer +

El objetivo de esta investigación consistió en determinar el tipo y condiciones de ácido a emplear en la hidrólisis ácida del bagazo de Agave Angustifolia Haw, para la maximización de la obtención de azúcares reductores totales. La experimentación consistió en dos etapas, en la primera se aplicó... Leer +

Se utilizaron sistemas de fermentación líquido y solido, este último con residuos del cultivo de maíz para la producción de enzimas extracelulares del hongo Stenocarpella maydis

This study examines the performance of an anaerobic fixed-film bioreactor under seasonal operating conditions prevailing in medium and small size Tequila factories: start-up, normal operation and particularly, during the restart-up after a long stop and starvation period. The proposed start-up... Leer +

Plastic products have very versatile qualities among which are their durability and resistance to degradation. Their annual consumption have increased from 5 million tons in 1950 to about 200 million tons per year in 2013, however their resistance to degradation and their extensive use generate... Leer +

El maguey mezcalero potosino (Agave salmiana Otto ex Salm-Dick) ha sido una fuente importante de alimentos y materiales desde tiempos prehispánicos hasta la actualidad. La articulación de su aprovechamiento integral y polivalente tanto como materia prima de la industria mezcalera, como de sus... Leer +

An agricultural product is used to develop a chemical hydrolysis process for obtaining fermentable sugars for the production of bioethanol.

Se utilizaron sistemas de fermentación líquido y solido para la producción de una xilanasa del hongo Sporisorium reilianum además de su purificación

Se utilizaron sistemas de fermentación líquido y solido para la producción de una aspartil proteasa del hongo Sporisorium reilianum además de su purificación

Sugarcane bagasse, Agave tequilana bagasse and coffee husks were hydrolyzed by steam explosion followed by enzymatic treatment without detoxifying process prior to fermentation. The hydrolysates underwent sequential fermentations using three different microorganisms to produce bioethanol and... Leer +

The particle size is a variable to be controlled for process optimization hydrolysis whether chemical or biological, therefore, a study was conducted to determine the effect of particle size and aeration on delignification of waste corn using a basidiomycete fungus.

Vinasse, the wastewater from ethanol distillation, is characterised by high levels of organic and inorganic matter, high exit process temperature (ca. 90 °C) and low pH (3.0–4.5). In this study, the treatment of tequila vinasse was achieved by a flocculation–coagulation process using poly-γ-... Leer +

This chapter intends to bring together the knowledge obtained from different applications of anaerobic technology in the treatment of various kinds of agro-industrial wastewaters to generate biogas. The first part covers essential information on the fundamentals of anaerobic technology, to... Leer +

Tequila industries in general produce great volumes of effluents with high pollutant loads, which are discharged (untreated or partially treated) into natural receivers, thus causing severe environmental problems. In this contribution, we propose an integrated system as a first step to comply with... Leer +

The production of Tequila (55% Alc. Vol.) in Mexico for the year 2008 was 227 million liters, and consequently around 2,270 million liters of Tequila vinasses (TVs) were generated, which without proper treatment is equivalent to the pollution produced by 6.2 million people. The lack of both... Leer +

Agave plants are a valuable source of raw material due to its fibrous and complex sugar content of their leaves and core, and their bagasse waste can be use for several aims. This plant genus belongs to the Agavaceae family and until now more than 200 species have been described. A large number of... Leer +

The aim of this study was to investigate the potential use of Agave tequilana waste as substrate for the production of commercially important enzymes. Two strains of Aspergillus niger (CH-A-2010 and CH-A-2016), isolated from agave fields, were found to grow and propagate in submerged cultures using... Leer +

En este artículo se aborda la importancia que ha tenido la bebida alcohólica Bacanora, desde el punto de vista social, cultural y económico, en los municipios contemplados en la Región de Denominación de Origen. Además, evidencia la necesidad de llevar a cabo un proceso de elaboración del Bacanora... Leer +

En este artículo se describen diversos aspectos relacionados con la industria del Bacanora. Tales como: su historia, la taxonomía del agave, etapas del proceso de elaboración. Se hace referencia del proceso de la elaboración de esta bebida en los diferentes municipios localizados en la región de... Leer +

La lechuguilla (Agave lechuguilla) es una planta de las zonas áridas y semiáridas de México y sur de Estados Unidos, utilizada por su fibra desde hace por lo menos unos 8000 años; actualmente es fundamental para la economía de unos 20,000 recolectores y sus familias. A. lechuguilla es una planta... Leer +

Lignocellulosic materials used to produce sugars such as glucose and xylose, represent a sustainable and friendly environmentally alternative. In México, these materials are produced in large quantities due production of distilled spirits, one of them is Agave Bagasse. Yield of cellulose... Leer +

El uso de plásticos sintéticos en productos desechables y su mala disposición provoca problemas de contaminación principalmente en los océanos. Los residuos agroindustriales como el bagazo de agave provocan también contaminación debido a su baja biodegradabilidad. Una alternativa para el... Leer +

El presente trabajo tuvo como objetivo contribuir con el conocimiento del uso de material lignocelulósico como substrato bioenergético. Para lo anterior se consideró el uso de la biomasa lignocelulósica de agave pulquero, específicamente la especie de A. salmiana como materia prima para evaluar el... Leer +