Jose Miguel Oliva Dominguez

Jose Miguel Oliva Dominguez
Centro Investigaciones Energéticas, Medioambientales y Tecnológicas | CIEMAT · Centro de Desarrollo de Energías Renovables

PhD

About

65
Publications
20,199
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4,691
Citations
Citations since 2017
13 Research Items
1844 Citations
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
Additional affiliations
January 1991 - present
Centro Investigaciones Energéticas, Medioambientales y Tecnológicas
Position
  • Senior Researcher

Publications

Publications (65)
Article
In this work, olive stone is used as a lignocellulosic raw material for ethanol production. In order to optimise the ethanol production yield, three different process strategies are studied considering the different streams produced in a sequential pretreatment of olive stone with dilute sulfuric acid/steam explosion (SE), which has been previously...
Article
Full-text available
The potential of banana peels (BPs) as a source of fermentable sugars for ethanol production was evaluated using two yeasts: Saccharomyces cerevisiae commercial strain and Kluyveromyces marxianus thermotolerant strain isolated from Agave honey. Different process configurations: simultaneous saccharification and fermentation (SSF), as well as presac...
Article
The organic fraction of municipal waste (OFMW), source-sorted (SS-OFMW) and non-sorted (NS-OFMW), was used as raw material for the sequential production of bioethanol and biogas. Non-isothermal and simultaneous saccharification and fermentation (NSSF) resulted in maximum ethanol concentrations of 51 g/L and 26 g/L for SS-OFMW and NS-OFMW samples, s...
Article
Olive tree pruning (OTP) represents an attractive biomass feedstock in the Mediterranean countries and worldwide. In this work, OTP has been studied as raw material for the production of advanced biofuels (i.e. bioethanol) within a biorefinery perspective. After pretreatment by water extraction and phosphoric-acid-catalyzed steam explosion, the who...
Article
El fraccionamiento de los materiales lignocelulósicos durante la etapa de pretratamiento permite que las distintas fracciones de este tipo de biomasa (celulosa, hemicelulosa y lignina) puedan recuperarse en corrientes separadas para su correcto aprovechamiento mediante procesos biotecnológicos, garantizando así la viabilidad de las biorrefinerías i...
Article
Olive stones are a lignocellulosic biomass generated as a by-product in the olive oil industry. They are of interest for use as a feedstock in the production of biofuels and other bioproducts in a biorefinery context. The aim of this work was to evaluate the potential of sugar production from olive stones, as a first approach in a valorisation proc...
Article
RESUMEN El presente trabajo demuestra la posibilidad de obtener los biopreparados inmovilizados en nanopartículas magnéticas (magnetita) recubiertas con quitosán (NPMQ), los cuales tienen potencial aplicación para el desa-rrollo de las tecnologías de obtención de bioetanol a partir de residuos lignocelulósicos. Se obtuvo la isoterma de adsorción de...
Chapter
Full-text available
The URBIOFIN demonstration-scale plant constitutes the first integrated biorefinery for the transformation of municipal solid waste (MSW) into new biobased products and a pioneer concept for converting the current linear economy to a more circular economy in the European Union (EU). URBIOFIN, with a total budget of 15 million €, is based on the syn...
Article
In this work, a residue from olive oil industry, i.e., extracted dry olive pomace (EOP) is studied for valorization into fermentable sugars and other added-value compounds. EOP processing is based on a first water extraction step at 100 °C during 30 min, followed by Liquid Hot Water (170,190 °C and 210 °C) or dilute acid (DA) pretreatment [same tem...
Article
Agricultural residues, such as barley straw (BS), are attractive sources for the production of chemicals and fuels based on the biorefinery principle. In the present paper, BS was steam exploded at 180°C/30 min and then 90% of the cellulose and 60% of the hemicellulose were recovered in solid and liquid fractions respectively, which were used for e...
Article
Wheat straw was used to produce xylooligosaccharides (XOS) for its prebiotic effect. Steam explosion (SE) pre-treatment has been used to separate the main components of lignocellulosic material: cellulose, hemicellulose and lignin. SE conditions used gave a cellulose recovery as solid fraction (91%) and a xylan recovered in the liquid fraction (LF)...
Article
Full-text available
The present work evaluates a two-step pretreatment process based on steam explosion and extrusion technologies for the optimal fractionation of lignocellulosic biomass. Two-step pretreatment of barley straw resulted in overall glucan, hemicellulose and lignin recovery yields of 84%, 91% and 87%, respectively. Precipitation of the collected lignin-r...
Article
The present study investigates and optimizes a one-step alkaline–extrusion pretreatment process using olive tree pruning as feedstock. In this work, a range of pretreatment conditions (temperature, screw speed and alkaline catalyst to dry matter ratio) were evaluated according to different parameters: composition of pretreated substrates, glucose a...
Conference Paper
Full-text available
Lignin-rich fermentation residues from cellulose-based industry are traditionally incinerated for internal energy use. The future biorefineries that convert cellulosic biomass into biofuels will generate more lignin than neccesary for internal energy use, and therefore valued-added products could be produced. In this context, a good understanding o...
Article
Full-text available
Lignin-rich residues from the cellulose-based industry are traditionally incinerated for internal energy use. The future biorefineries that convert cellulosic biomass into biofuels will generate more lignin than necessary for internal energy use, and therefore value-added products from lignin could be produced. In this context, a good understanding...
Article
This paper deals with a new approach for using olive tree pruning biomass as raw material for ethanol and other chemical production. This process includes a water extraction step, followed by a high solids loading dilute phosphoric acid pretreatment and an ethanologenic Escherichia coli fermentation for the conversion of all of the sugars released....
Article
Barley straw was pretreated with alkali (NaOH) at increasing NaOH/DM ratios (6–10%) and neutralized in a twin-screw extruder, obtaining a substrate ready for the incubation with enzymes. Two process configurations were evaluated: with and without filtration inside the extruder. The enzymatic digestibility of the pretreated substrates was evaluated...
Article
A pretreatment that combines a thermo-mechanical process (extrusion) with chemical and biological catalysts to produce fermentable sugars from barley straw (BS) biomass was investigated. BS was firstly extruded with alkali and then, the pretreated material (extrudate) was submitted to extrusion with hydrolytic enzymes (bioextrusion). The bioextruda...
Article
In this work, the effect of phosphoric acid (1% w/w) in steam explosion pretreatment of water extracted olive tree pruning at 175°C and 195°C was evaluated. The objective is to produce ethanol from all sugars (mainly glucose and xylose) contained in the pretreated material. The water insoluble fraction obtained after pretreatment was used as substr...
Article
Abstract Background Advances on enzyme technology have improved the economics of cellulosic ethanol. Nevertheless, there is still great interest to improve the production and the characteristics of the enzymatic preparations. One possibility to reduce the cost of the enzymes is on-site enzyme production in a biorefinery plant, in which part of the...
Article
BACKGROUND: Lignocellulosic biomass offers many potential advantages in comparison with the traditionally used sugars or starchy biomass since it is very widely available and does not compete with food and feed production. The abundance and high carbohydrates content of barley straw make it a good candidate for bioethanol production in Europe. Sinc...
Patent
Full-text available
The invention relates to a method for recovering energy from the organic fraction of urban solid waste comprising the following steps: a) the organic fraction is pre treated with mineral acids, preferably sulfuric acid, during which the fraction is heated by an outer thermal jacket with no steam injection or steam explosion, thereby producing a fir...
Article
In this work, forage sorghum biomass was studied as feedstock for ethanol production by a biological conversion process comprising the steps of hydrothermal steam explosion pretreatment, enzymatic hydrolysis with commercial enzymes, and fermentation with the yeast Saccharomyces cerevisiae. Steam explosion conditions were optimized using a response...
Article
BACKGROUND: In Mediterranean countries, olive tree pruning provides a widely available renewable agricultural residue with, currently, no industrial application. This residue could provide feedstock for the bioethanol industry. In the present study, olive tree pruning biomass pretreated with both ‘liquid hot water’ and ‘dilute-sulfuric acid’ was te...
Article
Biomass of olive tree pruning can be considered a suitable raw material for the production of ethanol due to its high content of potentially fermentable carbohydrates. However its high extractives content could cause condensation reactions between extractives and acid insoluble lignin during pretreatment, hindering the enzymatic hydrolysis of pretr...
Article
Barley straw is nowadays being considered a potential lignocellulosic raw material for fuel-ethanol production as an alternative to starch- or sugar-containing feedstock. In this work, several configuration strategies for ethanol production from steam-exploded barley straw by Kluyveromyces marxianus CECT 10875 have been studied with the aim of obta...
Article
An efficient fermenting microorganism for bioethanol production from lignocellulose is highly tolerant to the inhibitors released during pretreatment and is able to ferment efficiently both glucose and xylose. In this study, directed evolution was employed to improve the xylose fermenting Saccharomyces cerevisiae F12 strain for bioethanol productio...
Article
Steam pretreatment is one of the most efficient pretreatment technologies employed prior to enzymatic hydrolysis of lignocellulosics to obtain high polysaccharide conversion. In this study, steam pretreatment of non-impregnated hemp hurds was investigated at two reactor scales (2 and 10 L) by varying the temperature from 200-230 °C. Glucan recoveri...
Article
Full-text available
In this work, the use of organic fraction from municipal solid waste (MSW) as substrate for ethanol production based on enzymatic hydrolysis was evaluated. MSW was subjected to a thermal pretreatment (active hygienization) at 160 degrees C from 5 to 50 min. The organic fiber obtained after 30 min was used as substrate in a simultaneous saccharifica...
Article
Solid content in the simultaneous saccharification and fermentation (SSF) broth should be as high as possible in order to reach higher ethanol concentration. In this work, several feeding strategies for ethanol production from steam-exploded wheat straw by Kluyveromyces marxianus CECT 10875 have been studied with the aim of obtaining higher ethanol...
Article
Full-text available
This paper reviews current status of bioethanol production including substrates, fermenting microorganisms and technology for a full-scale process development. Considering main drawbacks, several parameters (high substrate loadings, sugar recovery after pretreatment, tolerance to inhibitory compounds and xylose fermentation by yeast) must be optimi...
Article
Cardoon (Cynara cardunculus L.) is an herbaceous species originating in the Mediterranean area that can be considered as a potential lignocellulosic feedstock for biofuels and high added value products.In this work, cardoon biomass (stems and leaves) was pretreated with dilute sulfuric acid in a batch reactor. The effect of temperature (160–200 °C)...
Article
This study was aimed to study the effect of commercial cellulases (Celluclast 1.5 LFG) on Kluyveromyces marxianus CECT 10875 growth and ethanol production in SSF processes. Preliminary tests carried out in glucose (50 g/L) fermentation medium showed that high enzyme amounts (2.5-3.5 FPU/mL) could cause a negative effect on K. marxianus growth rate...
Article
In this study, bioethanol production from steam-exploded wheat straw using different process configurations was evaluated using two Saccharomyces cerevisiae strains, F12 and Red Star. The strain F12 has been engineerically modified to allow xylose consumption as cereal straw contain considerable amounts of pentoses. Red Star is a robust hexose-ferm...
Article
The production of fermentable sugars from olive tree biomass was studied by dilute acid pretreatment and further saccharification of the pretreated solid residues. Pretreatment was performed at 0.2%, 0.6%, 1.0% and 1.4% (w/w) sulphuric acid concentrations while temperature was in the range 170-210 degrees C. Attention is paid to sugar recovery both...
Article
BACKGROUND: Crop residues as wheat straw are potential sources for fuel-ethanol production as an alternative to current production based on starch- or sugar-containing feedstocks. In this work, the effect of liquid hot water (LHW) process parameters, i.e. temperature (170 and 200 °C), residence time (0 and 40 min), solid concentration (5% and 10% (...
Article
Full-text available
Cynara cardunculus L. (cardoon) is a Mediterranean perennial herb offering good potential as substrate for sustainable production of bioethanol. In this work the first approach to the study of dilute-acid pretreatment of cardoon biomass for biological conversion was made. The influence of temperature (160-200 degrees C), acid concentration (0-0.2%...
Article
Olive tree pruning generates an abundant, renewable lignocellulose residue, which is usually burnt on fields to prevent propagation of vegetal diseases, causing economic costs and environmental concerns. As a first step in an alternative use to produce fuel ethanol, this work is aimed to study the pretreatment of olive tree pruning residues by liqu...
Article
The effect of the combination of acetic acid, furfural and catechol ethanol fermentation of Kluyveromyces marxianus was studied. A modified central composite design was used to investigate the influence of these compounds on specific growth rate, ethanol yield and biomass yield. The compounds were selected taking into account their concentration in...
Article
Bioconversion of cereal straw to bioethanol is becoming an attractive alternative to conventional fuel ethanol production from grains. In this work, the best operational conditions for steam-explosion pretreatment of wheat straw for ethanol production by a simultaneous saccharification and fermentation process were studied, using diluted acid [H2SO...
Article
Full-text available
The influence of the liquid fraction (prehydrolysate) generated during steam-explosion pretreatment (210 degrees C, 15 min) of barley straw on the enzymatic hydrolysis was determined. Prehydrolysate was analyzed for degradation compounds and sugars' content and used as a medium for enzymatic hydrolysis tests after pH adjusting to 4.8. Our results s...
Article
Full-text available
Bioconversion of cereal straw to bioethanol is becoming an attractive alternative to conventional fuel ethanol production from grains. In this work, the best operational conditions for steam-explosion pretreatment of wheat straw for ethanol production by a simultaneous saccharification and fermentation process were studied, using diluted acid [H2SO...
Article
The use of stalks instead of tubers as a source of carbohydrates for ethanol production has been investigated. The inulin present in the stalks of Jerusalem artichoke was extracted with water and the effect of solid-liquid ratio, temperature, and acid addition was studied and optimized in order to attain a high-fructose fermentable extract. The max...
Chapter
The use of stalks instead of tubers as a source of carbohydrates for ethanol production has been investigated. The inulin present in the stalks of Jerusalem artichoke was extracted with water and the effect of solid-liquid ratio, temperature, and acid addition was studied and optimized in order to attain a high-fructose fermentable extract. The max...
Article
The application of Fenton's reaction to enhance the fermentability of prehydrolysates obtained from steam explosion pretreatment of poplar biomass was studied. Reaction conditions of temperature and H2O2 and Fe(II) concentrations were studied. The fermentability of prehydrolysate treated by Fenton's reaction was tested by using different inoculum s...
Chapter
The application of Fenton’s reaction to enhance the fermentability of prehydrolysates obtained from steam explosion pretreatment of poplar biomass was studied. Reaction conditions of temperature and H2O2 and Fe(II) concentrations were studied. The fermentability of prehydrolysate treated by Fenton’s reaction was tested by using different inoculum s...
Article
Simultaneous saccharification and fermentation (SSF) process for ethanol production from various lignocellulosic woody (poplar and eucalyptus) and herbaceous (Sorghum sp. bagasse, wheat straw and Brassica carinata residue) materials has been assayed using the thermotolerant yeast strain Kluyveromyces marxianus CECT 10875. Biomass samples were previ...
Article
The inhibitory effects of various lignocellulose degradation products on glucose fermentation by the thermotolerant yeast Kluyveromyces marxianus were studied in batch cultures. The toxicity of the aromatic alcohol catechol and two aromatic aldehydes (4-hydroxybenzaldehyde and vanillin) was investigated in binary combinations. The aldehyde furfural...
Article
Steam-explosion process can be satisfactorily used as a pretreatment in ethanol production from lignocellulosic biomass. Traditionally, pretreatment effectiveness is evaluated in terms of hemicellulose solubilization, enzymatic convertibility of cellulose fraction, and recovery of both polysaccharides. In this study some parameters different from c...
Article
Pretreatment has been recognized as a key step in enzyme-based conversion processes of lignocellulose biomass to ethanol. The aim of this study is to evaluate two hydrothermal pretreatments (steam explosion and liquid hot water) to enhance ethanol production from poplar (Populus nigra) biomass by a simultaneous saccharification and fermentation (SS...
Article
The filtrate from steam-pretreated poplar was analyzed to identify degradation compounds. The effect of selected compounds on growth and ethanolic fermentation of the thermotolerant yeast strain Kluyveromyces marxianus CECT 10875 was tested. Several fermentations on glucose medium, containing individual inhibitory compounds found in the hydrolysate...
Article
Full-text available
La obtención de etanol a partir de biomasa lignocelulósica mediante un proceso de Sacarificación y Fermentación Simultáneas (SFS), requiere un pretratamiento previo de la biomasa que altere su estructura, facilitando la acción de los enzimas. Durante el pretratamiento se forman una serie de productos de degradación que pueden afectar al microorgani...
Article
The objective of this work was to evaluate the effect of particle size on steam-explosion pretreatment of herbaceous lignocellulosic biomass. Hemicellulose and cellulose recovery, and effectiveness of enzymic hydrolysis of the cellulosic residue is presented for steam-explosion pretreatment of an agriculture residue (Brassica carinata) using differ...
Article
In this work, a recycled paper-derived feedstock was used to produce ethanol by the simultaneous saccharification and fermentation (SSF) process using the thermotolerant yeast Kluyveromyces marxianus CECT 10875. At standard SSF conditions, the highest yield (about 80% of theoretical) was obtained at low substrate concentration and high enzyme loadi...
Article
In this work, the residue generated in the new two-step centrifugation process for olive oil extraction is assessed for the production of bioethanol. Both olive pulp and fragmented stones fractions comprised in such residue are analyzed and tested at laboratory scale for bioconversion to ethanol by a simultaneous saccharification and fermentation (...
Article
Full-text available
The olive pulp fraction contained in the residue generated in olive oil extraction by a two-step centrifugation process can be upgraded by using the cellulose fraction to produce ethanol and recovering high value phenols (tyrosol and hydroxytyrosol). Olive pulp was pretreated in a laboratory scale stirred autoclave at different temperatures (150-25...
Article
Full-text available
In this work, the residue generated in the new two-step centrifugation process for olive oil extraction is assessed for the production of bioethanol. Both olive pulp and fragmented stones fractions comprised in such residue are analyzed and tested at laboratory scale for bioconversion to ethanol by a simultaneous saccharification and fermentation (...
Article
The recent implementation of a new two-step centrifugation process for extracting olive oil in Spain has substantially reduced water consumption, thereby eliminating oil mill wastewater. However, a new high sugar content residue is still generated. In this work the two fractions present in the residue (olive pulp and fragmented stones) were assayed...
Article
Although considerable progress has been made in technology for converting lignocellulosic biomass into ethanol, substantial opportunities still exist to reduce production costs. In biomass pretreatment, reducing milling power is a technological improvement that will substantially lower production costs for ethanol. Improving sugar yield from hemice...
Article
In this work, the effect of the addition of different concentrations of Tween-80 and three different zeolite-like products on enzymatic hydrolysis, ethanol fermentation, and simultaneous saccharification and fermentation (SSF) process has been investigated. The ability of these products to enhance the effectiveness of the SSF process to ethanol of...
Article
In this study, fermentation tests on different initial glucose concentrations, ranging from 100 to 200 g/L, were conducted to identify the ethanol tolerance ofKluyveromyces marxianus EMS-26 strain at 42‡C. Lipid and nutrient additions to the fermentation medium were made in order to improve the ethanol production at 42‡C. The results obtained show...
Article
Different treatments to improve the thermotolerance of fermenting yeasts for simultaneous ethanol saccharification and fermentation process of cellulosic materials have been examined. Yeasts of the genera Saccharomyces and Kluyveromyces were tested for growth and fermentation at progressively higher temperatures in the range of 42-47 degrees C. The...

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Project (1)
Project
The objective of the WASTE2BIO is to validate and demonstrate a global process for the organic MSW, through the recovery thereof in bioethanol and biogas in order to enhance the valorization of residues, reducing energy costs and impacts from waste management.