Bioprocesos. Fermentaciones (alimentos y bebidas) Procesos de producción de vino y cerveza Monitoreo rápido con espectroscopia FTIR/MIR/NIR Quimiometria Tratamiento Biológico de Riles Sostenibilidad

Doctorado

1. Silvia Mau Incháustegui (Ph. D. commission). Generation of mutant strains of Clostridium acetobutylicum with high resistance to inhibitors produced in the pretreatment of lignocellulosic material through evolutionary engineering for the production of biobutanol. Doctorate in Biotechnology, Universidad Técnica Federico Santa María. October 2020.
2. María José Paredes (Ph. D. commission). Relationship between the nitrogen sources of grape must and the formation of H2S in wine strains of Saccharomyces cerevisiae. Doctorate in Agronomy Engineering. Pontificia Universidad Católica de Chile. September 2019.
3. Oscar Franchi (Ph. D. commissions). Study of the microbial communities and functional genes in anaerobic reactors in the presence of toxic or inhibitory compounds for the determination of a marker of stability. Doctorate in Biotechnology. Pontificia Universidad Católica de Valparaíso- Universidad Técnica Federico Santa María. June 2019.
4. Iván Paredes (Ph. D. commission). Determination of the pH effect on the distribution of physiological states and butanol production in batch and continuous cultures of Clostridium beijerinckii NCIMB-8052. Doctorate in Engineering Sciences. Mention in Biochemical Engineering. Pontificia Universidad Católica de Valparaíso. June 2019.
5. Susana Restrepo (co- promoter Ph. D. thesis). Analytical methodologies for determining the content of fatty acids and amino acids during the alcoholic fermentation of wine. Application of FTIR and NMR infrared spectroscopies in combination with chemometric methods. Doctorate in Chemistry. Universidad de Valparaíso- Universidad Técnica Federico Santa María. May 2019.
6. Nadia Guajardo (Ph. D. commission). Assessment of the selectivity of immobilized lipases in asymmetric synthesis reactions. Doctorate in Biochemical Engineering. Pontificia Universidad Católica de Valparaíso 2014.

Magister/Master

7. Valeria Galaz (postgraduate commission). Fermentative potential of isolated yeasts from insects for the production of craft beer. Master of Engineering Science. Pontificia Universidad Católica de Chile. August 2021.
8. Paula Rojas (Thesis co-promoter). Recovery and processing of wine yeast: use as a source of organic nitrogen and its effects on the fermentation, molecular and sensory profile of wine. Master of Science in Chemical Engineering. Universidad Técnica Federico Santa María. August 2020.
9. Sara Calderón (Thesis supervisor). Effect of sequential inoculation of Non Saccharomyces yeasts Lanchacea thermotolerans with Saccharomyces cerevisiae in the production of ethanol and volatile compounds in wine. Master of Science in Chemical Engineering. Universidad Técnica Federico Santa María. June 2020.
10. Joshua Ortega (Thesis co-promoter). Technical evaluation and optimization of a CSTR process, using dynamic programming, for the production of lithium carbonate from brine. Master of Science in Chemical Engineering. Universidad Técnica Federico Santa María. October 2018.
11. Gustavo Garay (Thesis supervisor). Early prediction of abnormalities in alcoholic fermentation based on the use of a dissolved carbon dioxide sensor. Master of Science in Chemical Engineering. Universidad Técnica Federico Santa María. August 2018.
12. Bastián Monsalves (postgraduate commission). Effect of stirring speed and dissolved oxygen tension on PHB production in Azotobacter vinelandii OP. Master in Engineering Sciences Mention Biochemical Engineering. Pontificia Universidad Católica de Valparaíso. 2016.
13. Juan Pablo Aguirre (co-promoter with Dr. Lorna Guerrero). Design and start-up of a hybrid UASB reactor for simultaneous autotrophic and heterotrophic denitrification. Environmental Civil Engineering. Master of Science in Chemical Engineering. Universidad Técnica Federico Santa María. 2014.
14. Andrés Ceballos (Thesis supervisor). Evaluation and diagnosis of the behavior of wine alcoholic fermentation in optimal and non-optimal conditions. Master of Science in Chemical Engineering. Universidad Técnica Federico Santa María. 2014.
15. Alberto Hinojosa (Thesis supervisor). Evaluation of the efficiency of D-Optimal designs in the modeling of biological processes: Alcoholic Wine Fermentation as a case study. Chemical Civil Engineering. Magister Civil Chemical Engineering. Universidad Técnica Federico Santa María. 2013.

Pregrado

16. Undergraduate final Project promoter. Valentina Cerpa. Evaluation of the volatile profile generated by native non Saccharomyces yeasts under different strategies and winemaking scales”. Chemical Civil Engineering. Universidad Técnica Federico Santa María. January 2023.
17. Undergraduate final Project co-promoter. Javier Zamora. Study of the application of yeast enzymatic hydrolyzate as a source of nitrogen in the beer fermentation process. Chemical Civil Engineering. Universidad Técnica Federico Santa María. December 2022
18. Undergraduate final Project co-promoter. Sebastián Véliz. Economic feasibility of crop trade non-conventional yeast starters for the beer industry in Chile. Industrial Civil Engineering. Universidad Técnica Federico Santa María. December 2022.
19. Undergraduate final Project co-promoter. Kevin Alarcón. Cost structure in artisan beer manufacture. Industrial Civil Engineering. Universidad Técnica Federico Santa María. December 2022.
20. Undergraduate final Project co-promoter. Fernando Araneda. Pre-feasibility study for the production and marketing of a tea-based fermented beverage kombucha. Chemical Civil Engineering. Universidad Técnica Federico Santa María. October 2022.
21. Undergraduate final Project supervisor. Matias Henriquez. Characterization of the fermentative potential of native non-Saccharomyces yeasts for the production of wines of reduced alcohol. Chemical Civil Engineering. Universidad Técnica Federico Santa María. January 2022.
22. Undergraduate final Project co-promoter. Claudia Astudillo. Phytoremediation study of paste tailings containing Ni, Zn, Cr, Cd, Pb and As using the species native Oxalis gigantea, Cistanthe grandiflora, Puya berteroniana and Solidago chilensis. Environmental Civil Engineering. Universidad Técnica Federico Santa María. June 2021.
23. Undergraduate final Project supervisor. Andrea Maldonado. Characterization and stabilization of earthworm meal (Eisenia foetida) obtained by drying in a rotating drum and lyophilizer. Chemical Civil Engineering. Universidad Técnica Federico Santa María. August 2019.
24. Undergraduate final Project supervisor. Valentina Torres. Sequential inoculation of Pichia sp. with Saccharomyces cerevisiae and its effect on the production of ethanol and volatile compounds. Chemical Civil Engineering. Universidad Técnica Federico Santa María. August 2019.
25. Undergraduate final Project co-promoter. Daniel López. Simultaneous saccharification and fermentation of red grape marc for second generation bioethanol production. Chemical Civil Engineering. Universidad Técnica Federico Santa María. May 2019.
26. Undergraduate final Project co-promoter. Alexis Tapia. Prediction of the wine fermentation process using the mann - whitney / wilcoxon test, analysis of structural change and logistic regression penalizes firth. Mathematics Civil Engineering. Universidad Técnica Federico Santa María. May 2019.
27. Undergraduate final Project supervisor. Yanara Nuñez. Effect of the C / N ratio on the production of PHB in Azotobacter vinelandii OP from grape marc as substrate. Chemical Civil Engineering. Universidad Técnica Federico Santa María. March 2019.
28. Undergraduate final Project. Francisca Araya. Economic technical prefeasibility study for the implementation of a plant producing fermented beverages from pine nut. Chemical Civil Engineering. Universidad Técnica Federico Santa María. July 2018.
29. Undergraduate final Project co-promoter. María Daniela Díaz. Continuous improvement for the visual and physical quality of cigarettes through the management of quality indicators. Chemical Civil Engineering. Universidad Técnica Federico Santa María. March 2018.
30. Undergraduate final Project supervisor. Soledad Avendaño. Production and Evaluation of Polyhydroxybutyrate in Azotobacter vinelandii OP from grape marc as a carbon source. Chemical Civil Engineering. Universidad Técnica Federico Santa María. January 2018.
31. Undergraduate final Project supervisor. Angélica Durán. Evaluation of the technical feasibility of using pine nut as raw material for beer production. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2017.
32. Undergraduate final Project supervisor. Camila Urbina. Effect of the use of enzymatic hydrolyzate of yeast proteins as a source of nutrients in alcoholic fermentation on the molecular profile of wine. Environmental Civil Engineering. Universidad Técnica Federico Santa María. 2016.
33. Undergraduate final Project supervisor. Jimena García Effect of the use of enzymatic hydrolyzate of yeast proteins as a source of nutrients in alcoholic fermentation on the molecular profile of wine. Environmental Civil Engineering. Universidad Técnica Federico Santa María. 2016.
34. Undergraduate final Project copromoter. Paula Rojas. Feasibility of the use of enzymatic hydrolyzate from yeast as a nitrogen source on wine fermentation. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2016.
35. Undergraduate final Project supervisor. Camila Olea. Characterization of the microflora during the spontaneous fermentation of different varieties of grapes of Chilean origin. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2015.
36. Undergraduate final Project supervisor. Gustavo Garay. Evaluation of the use of a dissolved carbon dioxide sensor (DCO2) for monitoring alcoholic fermentation in the exponential phase. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2015.
37. Undergraduate final Project supervisor. Isadora Toledo. Stable isotopes in tree growth rings for the development of water reconstructions in the Aconcagua river basin. Environmental Civil Engineering. Universidad Técnica Federico Santa María. 2015.
38. Undergraduate final Project supervisor. Beatriz Marty. Influence of nitrogen and oxygen on the alcoholic fermentation of wine. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2015.
39. Undergraduate final Project supervisor. Ingrid Cerda. Influence of the geographical origin and age of native Chilean oak chips on the transfer of compounds that intervene in the organoleptic properties of wine. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2015.
40. Undergraduate final Project supervisor. Valentina Gajardo. Immobilization of yeasts as a strategy for the production of wine reduced in alcohol. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2014.
41. Undergraduate final Project supervisor. Daruska Miric. Immobilization of fructosyl transferase for the synthesis of fructoligaccharide from sucrose. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2014.
42. Undergraduate final Project supervisor. Daniela Salgado. Comprehensive household solid waste management and management plan for the Violeta Parra camp in Valparaíso, through composting and recycling. Environmental Civil Engineering. Universidad Técnica Federico Santa María. 2014.
43. Undergraduate final Project supervisor. Katherine Menzel. Effect of low temperatures and the addition of nitrogen in the alcoholic fermentation of wine. Chemical Civil Engineering. Universidad Técnica Federico Santa María. 2011.
44. Undergraduate final Project supervisor. Marco Emparán. Detection of problems in wine fermentation using multivariable statistical techniques: MPCA and MPLS. Industrial Civil Engineering. Universidad de Valparaíso.
45. Undergraduate final Project supervisor. César Román. Use of artificial neural networks to detect problems in winemaking. Industrial Civil Engineering. Universidad de Valparaíso. 2010.
46. Undergraduate final Project supervisor. Erik Schulze. Implementation and production at laboratory scale of biodiesel through basic transesterification from oil residues. Industrial Civil Engineering. Universidad de Valparaíso. 2010.
47. Undergraduate final Project supervisor. Luis Díaz. Design and implementation of a Balance Scorecard system for a service company. Industrial Civil Engineering. Universidad de Valparaíso.
48. Undergraduate final Project supervisor. Implementation of eco-efficiency indicators in SMEs under the category of Teaching. Industrial Civil Engineering. Universidad de Valparaíso.
49. Undergraduate final Project supervisor. Market study and economic analysis for the use of oils in the production of biodiesel in Chile. Industrial Civil Engineering. Universidad de Valparaíso.
50. Undergraduate final Project supervisor. Minimization of the environmental impact caused by ships by developing a strategy for disembarking and transporting solid waste generated on board. Industrial Civil Engineering. Universidad de Valparaíso.

Patente
A.Urtubia, W. Franco, C. Ceppi De Lecco, S. Benavides, A. Durán. PCT/CL2023/0500 Invention Patent “MÉTODO PARA ELABORAR UN VINO REDUCIDO EN ETANOL Y CON PROPIEDADES ORGANOLÉPTICAS MEJORADAS A PARTIR DE LEVADURAS DEL GÉNERO CANDIDA” Submitted March 3rd of 2023.

Estudios, estadías en el extranjero

1. Estadía formativa del programa de doctorado en Unité de Biochimie de la Nutrition BNUT. Département de Biologie Appliquée et des Productions Agricoles. Université Catholique de Louvain la Neuve. Bélgica, con Marc Meurens (2001)
Tópico: Estudios en Espectroscopia Infrarroja y Quimiometría.
2. Estadía de perfeccionamiento en el contexto Programa Fondecyt 11070251, en UMR ITAP Information and Technologies for Agri-processes. CEMAGREF Montpellier. France, con Jean-Michel Roger (2008)
Tópico: Análisis de Datos y Quimiometría.
3.Estadía de perfeccionamiento en el contexto Programa CNRS-CONICYT, en la Universidad de Rennes 1, Rennes, Francia, con Antonio Mucherino (2012).
Tópico: Minería de Datos.
4. Estadía corta en el contexto Programa Fondecyt 1120679, en Universitat Rovira i Virgili, Tarragona-España con el Dr. Francisco López Bonillo, y INRA, Montpellier-Francia con Dr. Jean-Marie Sablayrolles (2012).
Tópico: Investigación en Proceso Producción Vino.
5. Estadía de perfeccionamiento en el contexto Programa FONDECYT 1120679, en la Universidad de Rennes 1, Rennes, Francia, con Antonio Mucherino (2013, 2014).
Tópico: Biclustering en fermentaciones de vino.
6. Estadía de especialización en el extranjero. Proyecto FSM1402. Universidad de Georgia, Universidad de Ohio y Universidad California Davis, USA (Octubre 2018). Tópico: Innovación basada en Ciencia.
7. Estadía año sabático en el Department of Food Science and Technology. College of Food, Agriculture and Environmental Sciences. The Ohio State University. Dr. Luis Rodriguez-Saona.
Topic: NIR/MIR/FTIR Spectroscopy, Determination of Acrylamide, Minor in Brewing Sciences (August 2019 to June 2021).

Participación en Proyectos I+D+i

1. Director Project Innovation Education Superior of Gender in R&D at USM. 2021 – 2023.
2. Principal Investigator (Director) Project Fondef IDeA I+D 2019, N° ID 19110340 “BMN-PROVIRA: Biotechnology of native microorganisms in the organic production of wine with reduced alcohol and novel sensorial properties”. UTFSM, PUC, VINOTEC, Viña David Giacomini, Establecimientos Juanicó, Investigaciones Biotecnológicas. 2019 – 2022.
3. Principal Investigator Innovation Project USM PINN_2021_81 “Development of native non Saccharomyces yeast and bacteria starter cultures to generate a fermented beer like beverage with functional properties and unique sensorial attributes”. 2021-2023.
4. Co-Investigator Project Applied Research USM PI_IA_18_06 “Valorization of the biomass of earthworms produced from organic waste from free fairs: stabilization and retention of high-value nutritional and / or pharmacological properties”. 2018-2020.
5. Co-Investigator Project Research Line USM PI_L_17_05 “Application of electro-monitoring of soil contaminated with As, Cd and Pb with endogenous plant species”. 2017-2020.
6. Principal Investigator MECESUP Project “Strengthening collaboration with leading universities in the environmental area Viticulture & Enology for planning future joint work, for example, in development of submarine FT-IR spectrometer”. University of Georgia, The Ohio State University, University of California Davis. United States.
7. Investigator Project CORFO Contrato Tecnológico CONTEC-64850 “Advanced Real-time Monitoring System for the analysis of parameters in winemaking ponds”. CCTVal USM – LabMovil. 2017-2018.
8. Sponsor Project FONDEF VIU16E0124 Etapa II “Development and marketing of an alcoholic beverage made from Araucaria pine nuts”. 2017.
Sponsor Project FONDEF VIU Etapa I “Development and marketing of an alcoholic beverage made from Araucaria pine nuts”. 2016.
9. Principal Investigator Project USM Nº116.27.1 “Comprehensive use, sustainability and optimization in the food industry”. 2016-2017.
10. Principal Investigator Project USM Nº 271465 “Comprehensive use in the winemaking process”. 2012-2014.
11. Principal Investigator (Director) Project Fondef IDeA Nº CA12i10248 “Evaluation of microbiological, enzymatic and operational strategies to produce wine with reduced alcohol”. 2012-2014.
12. Principal Investigator Project Innova CORFO Nº 13263 “Development of an intelligent web application to support winemaking decisions for the correcting term of alcoholic fermentation”. 2012.
13. Principal Investigator Project FONDECYT Regular 1120679 “Diagnosis of problematic wine fermentations using advanced instrumentation and intelligent data processing”. 2012-2014.
14. Principal Investigator International Cooperation Program N° 574, CNRS – CONICYT “Application of Biclustering in the prediction of the behavior of wine fermentation”. 2011-2012.
15. Principal Investigator Project USM Nº 271010 “Study of the main causes of problems in wine fermentation”. 2010-2012.
16. Principal Investigator Project FONDECYT Iniciación 11070251 “Detection of fermentation problems using statistical techniques. Wine production as case study”. 2008-2010.
17. Principal Investigator/Postdoctoral Researcher Project FONDECYT 1050787: “Development and Evaluation of an activated sludge system, based on the metabolism of polyhydroxyalkanoates, with the aim of increasing the anaerobic digestion speed of the sludge generated in the wastewater treatment”. 2006-2007.
Investigator/Ph.D. thesis Project “Winemaking: Advanced Technologies and Optimization”. 2001-2004.

Asesorías I+D

1. Rol/Activity: Senior R&D scientist. Company: INIA, Fundación UC Davis Chile Life Sciences Innovation Center. Project title: “Determination of risk factors that impede the success of fermentations in dry land cv. País wine”. 2018-2020.
2. Rol/Activity: Senior R&D scientist. Company: Fundación UC Davis Chile Life Sciences Innovation Center, Universidad de Talca, VSPT, Viña Santa Rita. Project title: “Quality markers in the winemaking process”. 2018-2019.
3. Rol/Activity: Consultant. Company: Fundación UC Davis Chile Life Sciences Innovation Center. Project title: “Determination and standardization of the optimal conditions for the growth of each bacterium selected as potential biocontrollers of fungi and phytopathogenic nematodes, in order to have the necessary parameters for an industrial scale production”. 2019-2020.
4. Rol/Activity: Senior R&D scientist. Company: Consorcios del Vino. Project title: " Expert tools to support decision-making in energy and greenhouse gas technologies in wine companies”. 2015-2017.

Participación en Congresos nacionales e internacionales

1. A.Urtubia, W. Franco, C. Ceppi De Lecco, S. Benavides, A. Duran. Indigenous non-Saccharomyces yeasts in their impact on ethanol reduction and chemical profile of Chilean Sauvignon Blanc wine. 43rd World Congress of Vine and Wine. Ensenada, México. October 30 – November 4th, 2022.
2. A.Urtubia. Fermentación de bebidas alcohólicas: Avances en vino y cerveza (conference, invited speaker). I Congreso Euroameticano de Procesos y Productos Alimentarios. Brasil, December 9-11, 2021.
3. A.Urtubia, L. Rodriguez-Saona. Real-Time Screening of Acrylamide of Potato Products Using Handheld and Portable Infrared Spectroscopy Devices SHIFT. Chicago, United States, July 12-15th, 2020.
4. V. Torres, P. Roca, W. Franco, A. Urtubia. Sequential inoculation of Pichia sp. with Saccharomyces cerevisiae and its effect on the production of ethanol and volatile compounds. XVI Latin American Congress of Enology and Viticulture. ICA, Perú. November 17-20th, 2019.
5. V. Torres, S. Calderón, P. Roca, A. Urtubia. Sequential inoculation of Pichia sp. with Saccharomyces cerevisiae and its effect on the production of ethanol and volatile compounds. 42nd World Congress of Vine and Wine. Geneva, Switzerland. July 15-19th, 2019.
6. A. Urtubia, R. León, G. Hernández. Application of Computational Intelligence Techniques for Forecasting Problematic Wine Fermentations Using Data from Classical Chemical Measurements. 41st World Congress of Vine and Wine. Punta del Este, Uruguay. November 18 – 24th, 2018.
7. W. Franco, P. Valencia, C. Ramirez, A. Urtubia. Screening native yeast and lactic acid bacteria from different Chilean cultivars: potential species for production of reduced ethanol wines. 41st World Congress of Vine and Wine. Punta del Este, Uruguay. November 18 – 24th, 2018.
8. G. Garay, A. Urtubia. Early prediction of abnormalities in alcoholic wine fermentation based on the use of a dissolved carbon dioxide sensor. XX Congreso Chileno de Ingeniería Química. Santiago, Chile. May 14 – 17th, 2017.
9. I. Cerda, D. Ramírez, A. Urtubia. Influence of the geographical origin and age of native Chilean oak chips on the transfer of compounds that intervene in the organoleptic properties of wine. XX Congreso Chileno de Ingeniería Química. Santiago, Chile. May 14 – 17th, 2017.
10. G. Hernández, R. León, A. Urtubia. Determination of the best set of chemical variables to forecast problematic wine fermentations using support vector machines. XX Congreso Chileno de Ingeniería Química. Santiago, Chile. May 14 – 17th, 2017.
11. S. Restrepo, A. Urtubia. Prediction of fatty acid content during alcoholic wine fermentation using MID-FTIR spectroscopy and chemometrics. XX Congreso Chileno de Ingeniería Química. Santiago, Chile. May 14 – 17th, 2017.
12. J. García, C. Ramírez, A. Urtubia. Pre?fermentative techniques applied to grape pomace to study the evolution of phenolic composition and antioxidant activity throughout alcoholic fermentation. 39th World Vine and Wine Congress. Bento Goncalves, Brasil, October 24 – 28th, 2016.
13. W. Franco, C. Ramírez, P. Valencia, A. Urtubia. Characterizing the Native Yeast and Lactic Acid Bacteria Present During Spontaneous Fermentation of Six Grape Chilean Varieties. 39th World Vine and Wine Congress. Bento Goncalves, Brasil, October 24 – 28th, 2016.
14. G. Garay, A. Urtubia. Early prediction of anomalies in the alcoholic fermentation of wine by the use of a dissolved carbon dioxide sensor. 39th World Vine and Wine Congress. Bento Goncalves, Brasil, October 24 – 28th, 2016.
15. J. García, C. Ramírez, A. Urtubia. Pre?fermentative techniques applied to grape pomace to study the evolution of phenolic composition and antioxidant activity throughout alcoholic fermentation. 39th World Vine and Wine Congress. Bento Goncalves, Brasil, October 24 – 28th, 2016.
16. A. Urtubia, G. Hernández. Intelligent Data Processing as a tool to study the behavior of alcoholic wine fermentation. XV Congreso Latinoamericano de Viticultura y Enología y XIII Congreso Brasileño de Viticultura y Enología, Bento Goncalves, Brasil, November 3 – 7th, 2015.
17. C. Olea, A. Urtubia, B. Marty, P. Valencia, C. Ramirez, W. Franco. Characterization of fermentation activities of native yeasts strains from Chile. XV Congreso Latinoamericano de Viticultura y Enología y XIII Congreso Brasileño de Viticultura y Enología, Bento Goncalves, Brasil, November 3 – 7th, 2015.
18. G. Garay, J. Reyes de Corcuera, M. Valdenegro, A. Urtubia. Studying the potential of dissolved carbon dioxide sensor for monitoring and prediction the wine alcoholic fermentation behaviour. 12th International Congress on Engineering and Food (ICEF12), Quebec, Canada, June 14-18th, 2015.
19. M.J. Paredes, E. Bordeu, A. Urtubia. Aminoacids profile during problematic wine fermentations. 12th International Congress on Engineering and Food (ICEF12), Quebec, Canada, June 14-18th, 2015.
20. C. Olea, M.J. Paredes, A. Urtubia, P. Valencia, C. Ramirez, W. Franco. Characterization of the spontaneous fermentation of different varieties of chilean grape. 37° Congreso Mundial de la Viña y el Vino. Mendoza – Argentina, November 9-14th, 2014.
21. M.J. Paredes, E. Bordeu, A. Urtubia. Amino acids profile during problematic wine fermentations. 37° Congreso Mundial de la Viña y el Vino. Mendoza – Argentina, November 9-14th, 2014.
22. A. Urtubia, S. Resprepo, A. Ceballos, M. Valdenegro, L. Espinoza. Evolution of fatty acid content during alcoholic fermentation of Carmenere wine. 37° Congreso Mundial de la Viña y el Vino. Mendoza – Argentina, November 9-14th, 2014.
23. S. Restrepo, A. Ceballos, M. Valdenegro, L. Espinoza, A. Urtubia. Evolution of fatty acid content during alcoholic wine fermentation under normal and problematic conditions by GC-FID. XV Congreso Latinoamericano de Cromatografía y Técnicas Afines. Cartagena de Indias, Colombia, October 1-4th, 2014.
24. P. Valencia, K. Espinoza, M. Pinto, A. Urtubia, S. Almonacid. Antioxidant capacity of hydrolysates during enzymatic hydrolysis of salmon muscle proteins. 17th World Congress of Food Science and Technology & Expo. Montreal, Canada, August 17-21st, 2014.
25. A. Urtubia, V. Gajardo, P. Valencia, C. Ramirez, W., Franco, W. Immobilized yeast as strategy to control the ethanol level in wine. Biotech 2014 & 6th Czech-Swiss Symposium, Praga, Czech Republic, June 11-14th, 2014.
26. A. Urtubia, S. Resprepo, A. Ceballos, M. Valdenegro, L. Espinoza. Evolution of fatty acid content during alcoholic fermentation of Carmenere wine. Biotech 2014 & 6th Czech-Swiss Symposium, Praga, Czech Republic, June 11-14th, 2014.
27. A. Urtubia, S. Restrepo, A. Ceballos, M. Valdenegro, L. Espinoza. Evolution of fatty acid content during alcoholic wine fermentation under normal and problematic conditions by GC-FID. XIX Congreso Nacional de Ciencias y Tecnologías de los Alimentos. Antofagasta, Chile, October 22-30th, 2013.
28. A. Urtubia, P. Valencia, C. Ramírez, W. Franco. Immobilized yeast as strategy to control the ethanol level in wine. 15th Australian Wine Industry Technical Conference. Sidney, Australia, July 13-18th, 2013.
29. W. Franco, A. Urtubia, P. Valencia, C. Ramírez. Monitoring the indigenous yeast microbiota of Chilean Carmenere grapes during spontaneous fermentation. 15th Australian Wine Industry Technical Conference. Sidney, Australia, June 13-18th, 2013.
30. A. Urtubia, P. Valencia, C. Ramírez, W. Franco. Immobilized yeast as strategy to control the ethanol level in wine. 36th World Congress of Vine and Wine. Bucarest, Romania, June 2-7th, 2013.
31. A. Urtubia, A. Hinojosa, P. Valencia. D-optimal design efficiency in biological process modeling: Alcoholic fermentation of wine as case study. 36th World Congress of Vine and Wine. Bucarest, Romania, June 2-7th, 2013.
32. A. Urtubia, A. Hinojosa, P. Valencia. D-optimal design efficiency in biological process modeling: Alcoholic fermentation of wine as case study. IFT Meeting Proceedings. Chicago, USA, July 13-16th, 2013.
33. A. Urtubia, P. Valencia, W. Franco, H. Nuñez. New strategies to produce wine with low alcohol. 35th World Congress of Vine and Wine. Izmir, Turkey, June 18-22nd, 2012.
34. J.P. San Martin, J. Valdés, A. Urtubia. Elemental characterization of chilean wine using X-Ray fluorescence spectrometry. 35th World Congress of Vine and Wine. Izmir, Turkey, June 18-22nd, 2012.
35. A. Hinojosa, P. Valencia, H. Nuñez, R. Simpson, A. Urtubia. Evaluation of D-optimal design efficiency in biological process modeling: Alcoholic fermentation of wine as a case study. 15th International Biotechnology Symposium and Exhibition Proceedings. Daegoo, Korea, September 16-21st, 2012.
36. S. Almonacid, R. Simpson, M. Pinto, A. Jaques, A. Urtubia. Shelf Life Estimation of seafood Packet in Retornable Oxygen Permeable Films: Mathematical Model Development. 16th IUFOST, Foz de Iguazú, Brasil, August 5-9th, 2012.
37. R. Simpson, C. Ramírez, A. Soto, S. Almonacid, P. Rivadeneira, H. Nuñez, A. Urtubia. Study to investigate the behavior of salmon under the process of osmotic dehydration through ohmic heating. 16th IUFOST, Foz de Iguazú, Brasil, August 5-9th, 2012.
38. A. Urtubia, A. Hinojosa, J. Chang, M. Valdenegro, S. Almonacid. Exploring mathematical methodologies to predict the behavior of wine fermentations. IFT Meeting Proceedings. Las Vegas, USA, July 17-20th, 2012.
39. P. Valencia, R. Simpson, A. Urtubia, C. Ramírez and S. Almonacid. Reaction Mechanism of Alcalase in the Hydrolysis of Fish Muscle Protein. Congreso Interamericano de Ingeniería Química. Santiago, Chile, November 14-16th, 2011.
40. A. Hinojosa, P. Valencia, A. Urtubia. Determination of wine fermentation growth parameters using D-Optimal design. Congreso Interamericano de Ingeniería Química. Santiago, Chile, November 14-16th, 2011.
41. A. Mucherino, S. Cafieri, A. Urtubia. A VNS-based Heuristic for Feature Selection in Data-Mining. European Symposia in Algorithms. Saarbrücken, Germany, September 5 – 9th, 2011.
42. A. Urtubia, A. Hinojosa. Exploring mathematical methodologies to predict the behavior of wine fermentations. XXXIV World Congress of Vine and Wine. Porto, Portugal, June 20-27th, 2011.
43. A. Abakarov, S. Almonacid, A. Urtubia, and R. Simpson. Artificial Neural Networks benefit in modelling of protein hydrolisis kinetic. International Conferences on Food Innovation, Food Innova. Valencia, Spain, October 25-29th, 2010.
44. A. Urtubia. Detection of problem wine fermentation applying multivariate statistics. International Conferences on Food Innovation, Food Innova. Valencia, Spain, October 25-29th, 2010.
45. H. Peña-Cortés, I. Ramírez, R. Simpson, A. Urtubia, and S. Almonacid. Enzymatic hydrolysate from squid processing waste as an organic fertilizer. International Biotechnology Symposium and Exhibition Proceedings. Rimini, Italy, September 14-18th, 2010.
46. M. Valdenegro, L. Fuentes, A. Urtubia, R. Herrera, M. Moya-León. 2010. Modified atmosphere packaging preserves quality and antioxidant properties in Fragaria chiloensis. International Biotechnology Symposium and Exhibition Proceedings. Rimini, Italy, September 14-18th, 2010.
47. R. Simpson, A. Urtubia, A. Abakarov, and S. Almonacid. 2010. A study of different multieffect evaporators designed for thermal processing of tomato paste: Optimization and quality evaluation. International Biotechnology Symposium and Exhibition Proceedings. Rimini, Italy, September 14-18th, 2010.
48. A. Urtubia, M. Emparan, S. Almonacid, M. Pinto, and M. Valdenegro. Application of MPCA and MPLS on industrial batch bioprocesses. International Biotechnology Symposium and Exhibition Proceedings. Rimini, Italy, September 14-18th, 2010.
49. A. Urtubia, M. Emparan, C. Román, G. Hernández, and J.M. Roger. Multivariate Statistics and Pattern Recognition to detect abnormal fermentations in wine process. International Biotechnology Symposium and Exhibition Proceedings. Rimini, Italy, September 14-18th, 2010.
50. A. Mucherino, A. Urtubia, and L. Liberti. Analyzing Wine Fermentations by Consistent Biclustering. International Conference on Biomedical Data&Knowledge Mining: Towards biomarker Discovery Proceedings. Crete, Greece, July 2010.
51. A. Mucherino, A. Urtubia. Consistent Biclustering and Applications to Agriculture. IBAI Conference Proceedings, Workshops on Data Mining and Agriculture. Berlin, Germany, July 2010.
52. A. Urtubia, R. Simpson, S. Almonacid, M. Emparan. Multiway Partial Least Squares as tool to detect problems in wine fermentations. IFT Meeting Proceedings. Chicago, USA, July 17-20th, 2010.
53. A. Urtubia and Jean-Michel Roger. Predictive power of LDA to discriminate abnormal wine fermentations. WSC-7 Seventh Winter Symposium on Chemometric. St. Petersburg, Russia, February 15-19th, 2010.
54. A. Urtubia, G. Hernández, A. Abakarov, and C. Román. Prediction of problematic wine fermentations using Artificial Neural Networks. WSC-7 Seventh Winter Symposium on Chemometric. St. Petersburg, Russia, February 15-19th, 2010.
55. M. Emparan, and A. Urtubia. MPLS as a tool for detecting problems in wine fermentation. XVII Congreso Chileno de Ingeniería Química. Viña del Mar, Chile, October 26-28th, 2009.
56. C. Roman, G. Hernández and A. Urtubia. Using Artificial Neural Networks to Predict Wine Fermentation Problems. XVII Congreso Chileno de Ingeniería Química. Viña del Mar, Chile, October 26-28th, 2009.
57. A. Urtubia, R. Pérez-Correa. Study of Principal Components on Classification of Problematic Wine Fermentations. 9th International Conference of Data Mining ICDM 2009. Leipzig, Germany, July 20-22nd, 2009.
58. A. Urtubia, R. Pérez. Effect of PCA on clustering K-Means for classifying problematic wine fermentations. International Specialized Conference on Sustainable Viticulture: Winery Wastes and Ecologic Impact Management. Viña Del Mar, Chile. November 5-8th, 2006.
59. A. Urtubia, R. Pérez, E. Agosin. Application of infrared spectroscopy in the monitoring of wine fermentations. IX Latin-American Congress of Enology and Viticulture. Santiago, Chile, 2003.
60. A. Urtubia, P. Nagel. Methanogenic toxicity and anaerobic biodegradability of chemicals used in a brewery. V Latin-American Workshop and Congress Anaerobic Treatment of Wastewaters. Viña del Mar, 1998.