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LIPID PRODUCTION BY Penicillium decumbens FROM THE DIRECT CONVERSION OF SEAWEED BAGASSE

Abstract: A wide variety of microorganisms produce lipids of which filamentous ascomycetes fungi have the advantage of directly usingcellulosic by-products as primary carbon source to produce them. The capacity ofPenicilliumto accumulate mycelial lipids hasbeen recogni

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FORMATION, MORPHOLOGY AND BIOTECHNOLOGICAL APPLICATIONS OF FILAMENTOUS FUNGAL PELLETS: A REVIEW

Abstract: Bioprocesses with fungal biomass have been the subject of a growing interest in biotechnology industry because they representa rich source of enzymes, antibiotics, vitamins, and complex metabolites, which have a great potential for pharmaceutical,agricultural

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NOVEL EXOPOLYSACCHARIDE PRODUCED BY Acinetobacter bouvetii UAM25: PRODUCTION, CHARACTERIZATION AND PAHs BIOEMULSIFYING CAPABILITY

Abstract: Environmental pollution that polycyclic aromatic hydrocarbons (PAHs) cause, results in ecological damage. Bioremediationtackles this issue by using living organisms and metabolites such as bioemulsifiers (BEs) which can pseudo-solubilisehydrocarbons making th

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DIFFERENTIAL TOXICITY CAUSED BY METHANOL ON THE GROWTH OF Pichia pastoris CULTURED IN SOLID-STATE AND IN SUBMERGED FERMENTATION
M. López-Pérez G. Viniegra-González

Abstract: Growth kinetics ofP. pastorisand the toxic effect produced by methanol in solid-state (SSF) and submerged fermentation (SmF)were compared. SmF cultures of P pastoris presented moderate lysis without methanol (MetOH) after 72 h. Addition of MetOHhas negligible

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CULTIVATION OF Penicillium roqueforti IN COCOA SHELL TO PRODUCE AND CHARACTERIZE ITS LIPASE EXTRACT

Abstract: Lipases are enzymes of great interest and have industrial application. In this work, the production of lipase (Lip, U/g) wasinvestigated fromPenicillium roquefortiusing cocoa shell as a substrate for semi-solid fermentation. The optimization ofcultivation con

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CELLULASES AND XYLANASES PRODUCTION BY Penicillium citrinum CGETCR USING COFFEE PULP IN SOLID STATE FERMENTATION

Abstract: This work reports, for the first time, the use of coffee pulp residue to the expression of cellulolytic and xylanolytic enzymes bythe native fungusPenicillium citrinumCGETCR by solid-state fermentation (SSF). Coffee is one of the most important drinksin the w

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Agave americana HONEY FERMENTATION BY Kluyveromyces marxianus STRAIN FOR “COMITECO” PRODUCTION, A SPIRIT FROM MEXICAN SOUTHEAST

Abstract: The aim of this study was to obtain white and aged “comiteco” spirit using the yeastKluyveromyces marxianusstrain LEV-03-ITTG during fermentation ofAgave americanaL. and panela honey, as well as to determine volatile compounds in whiteand aged “comiteco” spir

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VOLATILE COMPOUND CHARACTERIZATION OF CAPRINE MILK BY MULTIVARIATE OPTIMIZATION OF HEADSPACE SOLID PHASE MICRO-EXTRACTION (HS-SPME)

Abstract: A Central Composite Design in conjunction with response surface methodology was used to optimize the extraction conditionsof volatile compounds in caprine milk usingheadspaceSolid Phase Micro-Extraction (HS-SPME). Through this statisticalmethodology, it was p

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PREPARATION OF STARCH/CLAY/GLYCEROL NANOCOMPOSITE FILMS AND THEIR FTIR, XRD, SEM AND MECHANICAL CHARACTERIZATIONS

Abstract: In the present work, Mexican natural clay (NC) was used to prepare an organoclay (OC), and both were added to a mix ofstarch/glycerol to obtain nanocomposite films of starch (TPS)/clay/plasticizer. The average thickness of the TPS/5% NC/25%glycerol films was

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CIŃETICA DE ESTERIFICACÍON ENZIḾATICA DÉ ACIDOS GRASOS POLIINSATURADOS N-3 A GLICEROL: MECANISMO PING-PONG MULTI-SUSTRATO MULTI-PRODUCTO

Resumen: En este trabajo se utiliźo una lipasa deCandida antarcticapara la produccíon de mono-, di- y tri-acilgliceroles para laesterificacíon directa déacidos grasos poliinsaturados (AGPI) n-3 al glicerol. Se prepaŕo un concentrado de AGPI n-3 (81,5%w/w) por hid

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IMPACT OF OPEN SUN DRYING AND HOT AIR DRYING ON CAPSAICIN, CAPSANTHIN, AND ASCORBIC ACID CONTENT IN CHILTEPIN (Capsicum annuum L. var. glabriusculum)

Abstract: Chiltepin is recognized for its pungency and deep red color. The purpose of this study was to evaluate the impact of open sundrying and hot air drying methods, as well as pretreatments on capsaicin, capsanthin, and ascorbic acid content in chiltepin.Chiltepin

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METHANOL PRODUCTION KINETICS DURING AGAVE COOKING FOR MEZCAL INDUSTRY

Abstract: Cooking of agave is a basic operation in the production of mezcal in which the agave fructans are transformed intomonosaccharides, and then these are converted to ethanol during fermentation. During these stages important minoritycompounds are generated such

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EXTRACTION AND CHARACTERIZATION OF THE FATTY ACID PROFILE OF QUINTONIL (Amaranthus hybridus)

Abstract: Quintonil (Amaranthus hybridus) grows as shrub and it is commonly used as animal feed. This typical Mexican vegetableis consumed in certain regions after a thermal processing, namely, boiling, frying or steaming. Some reports indicate thatquintonil contains n

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EFFECT OF ULTRASOUND ON THE CARBOHYDRATE EXTRACTION FROM SOTOL PLANTS (Dasylirion wheeleri) AT DIFFERENT POWERS AND TEMPERATURES

Abstract: Ultrasound-assisted extraction (UAE) of carbohydrates from powdered sotol plant (Dasylirion wheeleri) at different ultrasonicpowers (UPs) (32.13-85.9 W) and temperatures (20.85-49.14 °C), in a 1:24 sotol:water ratio for 10 min was evaluated; a treatmentcontro

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OPTIMIZATION OF THE FORMULATION OF EMULSIONS PREPARED WITH A MIXTURE OF VITAMINS D AND E BY MEANS OF AN EXPERIMENTAL DESIGN SIMPLEX CENTROID AND ANALYSIS OF COLOCALIZATION OF ITS COMPONENTS

Abstract: A suitable alternative for satisfying the demand of healthy and targeted compounds such as vitamins, is the preparation andconsumption of capsules formed from emulsions The objective of the present work was the preparation of emulsions of vitaminsD and E base

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KINETIC PARAMETER DETERMINATION FOR MTBE DEGRADATION WITH PERSULFATE AND Ag+IONS

Abstract: In this work the kinetics parameters of degradation of MTBE with persulfate catalyzed by Ag+ions in aqueous solution atdifferent temperatures and different concentrations of the oxidizing agent and catalyst, were determined. The experimental resultsindicate t

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SINCRONIZACÍON EN SISTEMAS QÚIMICOS

Resumen: En el presente trabajo se muestra la sincronizacíon unidireccional siḿetrica lineal de dos sistemas qúımicos de distinta naturaleza,cuya dińamica individual es descrita por un sistema de ecuaciones diferenciales no lineales. La evolucíon de la dińamica

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INFLUENCIA DE LA IRRADIACÍON MICROONDAS/ULTRASONIDO EN LA SÍNTESIS SOL-GEL DE NANO PARTÍCULAS DE DÍOXIDO DE TITANIO PARA SU APLICACÍON EN FOTOCAT́ALISIS

Resumen: Se sintetizaron por el ḿetodo sol-gel nanopart́ıculas de TiO2con el proṕosito de optimizar sus propiedades texturales ymorfoĺogicas, para su aplicacíon en fotocat́alisis variando el tratamiento t́ermico en la etapa de cristalizacíon. Cada muestrase prepa

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ANALYTICAL SOLUTIONS OF CONDUCTION/DIFFUSION EQUATION IN MEDIA CONTACTING A FINITE VOLUME SOLUTION AND THEIR TOPOLOGICAL RELATIONS

Abstract: Topological relations between heat or mass transfer equations analytical solutions for media contacting a well stirred solutionwith finite volume were deduced for infinite flat slabs, infinite cylinders and spheres. Referred topological relations conduce topr

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FLUID MOTION IN THE FLUID/POROUS MEDIUM INTER-REGION

Abstract: In many transport and reaction processes of interest in chemical engineering, rapid velocity variations are known to take placenear porous media boundaries. However, modeling the extension of the resulting boundary layers has been the subject of a longdebate

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USE OF BIOMASS-DERIVED FROM PECAN NUT HUSKS (Carya illinoinensis) FOR CHROMIUM REMOVAL FROM AQUEOUS SOLUTIONS. COLUMN MODELING AND ADSORPTION KINETICS STUDIES

Abstract: Chromium (VI) removal from water was studied using two varieties of pecan nut husks (PNHs): Barton and Native. InfluentCr(VI) solutions at different pH values (2.5 and 6.18) and particle sizes (0.42 and 0.85 mm) were performed. Both PNH varietiesshowed reduct

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REMOCÍON DE HIDROCARBUROS DE PETRÓLEO DE UN SUELO DE BAJA PERMEABILIDAD: BIORREMEDIACIÓN Y ELECTRORREMEDIACIÓN

Resumen: Se evalúo el efecto conjunto de la combinacíon de dos variables: (1) la aplicacíon de una corriente de baja intensidad parala desorcíon de un compuesto orǵanico presente en el suelo y su migracíon a la fase ĺıquida (ER) y (2) la accíon de losmicroorga

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BIOKINETIC AND ZYMOGRAPHIC STUDY OF THE ACID BLUE 74 DYE BIODEGRADATION USING ACTIVATED SLUDGE ONTO ACTIVATED CARBON

Abstract: This study is aimed at developing a strategy for acid blue 74 dye (ab74) removal from synthetic water by activated sludgesupported onto activated carbon. Low cost ecofriendly adsorbent has been investigated as alternative to expensive methods forremoving dyes

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DETERMINATION OF MICROBIAL CONTAMINANTS RECOVERED FROMBRAZILIAN PETROL STATIONS

Abstract: Soils from sites surrounding petrol stations are prone to hydrocarbon contamination and the selective pressure exerted on existingorganisms may facilitate the establishment of a tolerant microbiota. Thus, the detection of some key microbial groups may serveas

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EFECTO DE LOS PARÁMETROS DE DEPÓSITO DE SILICIO POLIMORFO POR TÉCNICA PECVD SOBRE LAS PROPIEDADES QUÍMICAS, NANO-ESTRUCTURALES, OPTOELECTRÓNICAS Y DE FOTO-DEGRADACIÓN PARA SU IMPLEMENTACIÓN EN LA FABRICACIÓN DE CELDAS SOLARES

Resumen: Se presentan resultados de caracterizaciones estructurales, qu ́ ımicas y optoelectr ́ onicas realizadas a pel ́ ıculas delgadas de silicio polimorfo ( pm-Si:H ) depositadas en sistema PECVD , utilizando diclorosilano como gas precursor. Se han examinado l

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RESINAS POLIÉSTER INSATURADAS A PARTIR DE PET DE DESECHO GLICOLIZADO: SÍNTESIS Y CARACTERIZACIÓN

Resumen: El poli (tereftalato de etileno), PET, es un pl ́ astico que despu ́ es de su consumo puede ser aprovechado para hacer diferentes materiales. El objetivo de este trabajo es valorar el uso del PET de desecho, como materia prima para elaborar resinas poli ́

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NEW ADD-IN FOR ENGINEERING SIMULATIONS IN SPREADSHEETS USING HOMOTOPY CONTINUATION METHODS

Abstract: Solving models represented by non-linear equations is a common situation in engineering and can be a challenging task. Homotopy Continuation Methods have shown globally convergent behavior, capable of finding all the possible roots of algebra

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ANALYSIS OF OPERATING CONDITIONS FOR CANE SUGAR BATCH CRYSTALLIZATION BASED ON MSZW COUPLED WITH MECHANISTIC KINETIC MODELS

Abstract: This work presents the improvement of vacuum pressure and total evaporation time based on the metastable zone width (MSZW) and crystallization kinetics. An approach of fractional feeding was used in a cane sugar batch crystallizer at pilot- s

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SIMULACIÓN DE LA DESTILACIÓN EXTRACTIVA CON SALES PARA LA OBTENCIÓN DE ETANOL DESHIDRATADO

Resumen: Se evalu ́ o la t ́ ecnica de destilaci ́ on extractiva empleando sales (CaCl 2 y NaCl) y una mezcla de etilenglicol y cloruro de calcio. Para la simulaci ́ on de las t ́ ecnicas se utiliz ́ o el simulador de procesos ASPEN-PLUS v7.0 y para su comparaci

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MODELING AND OPTIMIZATION OF AN OTTO CYCLE USING THE ETHANOL-GASOLINE BLEND

Abstract: The use of bio-fuels, like bio-ethanol mixed with gasoline, is growing interest in the automotive industry, to reduce the fossil fuels dependence. However, the air / fuel ratio for any blend is not found in the literature. It is found only for specific values

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