{"id":297,"date":"2025-08-22T01:47:18","date_gmt":"2025-08-22T05:47:18","guid":{"rendered":"http:\/\/mcia.ubiobio.cl\/?page_id=297"},"modified":"2025-08-22T01:47:18","modified_gmt":"2025-08-22T05:47:18","slug":"fundamentos-de-microbiologia-de-alimentos","status":"publish","type":"page","link":"https:\/\/mcia.ubiobio.cl\/?page_id=297","title":{"rendered":"Fundamentos de Microbiolog\u00eda de Alimentos"},"content":{"rendered":"\n<p><strong>IDENTIFICACION.<\/strong><\/p>\n\n\n\n<p><strong>C\u00f3digo:&nbsp;<\/strong><strong>522186<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>NOMBRE DE LA ASIGNATURA<\/td><td colspan=\"3\">:&nbsp;<strong>FUNDAMENTOS DE MICROBIOLOGIA DE ALIMENTOS&nbsp;<\/strong><\/td><\/tr><tr><td>FACULTAD<\/td><td>:&nbsp; FACSA<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td>UNIDAD ACADEMICA<\/td><td colspan=\"3\">:&nbsp; Departamento de Ingenier\u00eda en Alimentos<\/td><\/tr><tr><td>N\u00ba CREDITOS<\/td><td>:&nbsp; 4<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><tr><td>REQUISITOS<\/td><td>:<\/td><td>&nbsp;<\/td><td>&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>DESCRIPCION Y OBJETIVOS.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>DESCRIPCION<\/strong>:&nbsp;<br>La asignatura tiene el prop\u00f3sito dar a conocer las caracter\u00edsticas estructurales, metab\u00f3licas, fisiol\u00f3gicas y ecol\u00f3gicas de los principales grupos microbianos (bacterias, hongos, virus, protozoos y par\u00e1sitos helmintos) asociados con los alimentos. Se destacar\u00e1n aquellas propiedades que determinan su capacidad para alterar diversos grupos de alimentos y\/o&nbsp; actuar como agentes de toxi-infecciones alimentarias,&nbsp; sobrevivir a los distintos procesos de conservaci\u00f3n, as\u00ed como aquellas que permiten su utilizaci\u00f3n en la producci\u00f3n de alimentos.<\/td><\/tr><tr><td><strong>OBJETIVOS:<\/strong>Conocer e identificar los principales grupos microbianos asociados con los alimentos.&nbsp;Conocer las principales caracter\u00edsticas estructurales, metab\u00f3licas, fisiol\u00f3gicas y ecol\u00f3gicas de los microorganismos asociados con los alimentos.Conocer las principales propiedades de los microorganismos que determinan su rol como agentes de alteraci\u00f3n y\/o causantes de toxi-infecciones alimentarias, as\u00ed como su utilizaci\u00f3n en la elaboraci\u00f3n de diversos alimentos.&nbsp;.&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>RESUMEN DE UNIDADES PROGRAMATICAS.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/td><td>&nbsp;<\/td><td>N\u00ba Horas<\/td><\/tr><tr><td>01.<\/td><td>Introducci\u00f3n<\/td><td>02<\/td><\/tr><tr><td>02.<\/td><td>Estructura y funci\u00f3n de la c\u00e9lula procari\u00f3tica<\/td><td>10<\/td><\/tr><tr><td>03.<\/td><td>Fisiolog\u00eda, metabolismo y crecimiento bacteriano<\/td><td>10<\/td><\/tr><tr><td>04.<\/td><td>Taxonom\u00eda de los procariontes<\/td><td>08<\/td><\/tr><tr><td>05.<\/td><td>Virolog\u00eda<\/td><td>08<\/td><\/tr><tr><td>06.<\/td><td>Micolog\u00eda<\/td><td>08<\/td><\/tr><tr><td>07.<\/td><td>Protozoolog\u00eda y parasitolog\u00eda<\/td><td>08<\/td><\/tr><tr><td>08<\/td><td>Interacci\u00f3n hu\u00e9sped-par\u00e1sito.<\/td><td>06<\/td><\/tr><tr><td>&nbsp;<\/td><td>TOTAL HORAS:<\/td><td>60<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>UNIDADES PROGRAMATICAS<\/strong><\/p>\n\n\n\n<p><strong>a.Introducci\u00f3n<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Definiciones b\u00e1sicas<\/li>\n\n\n\n<li>Concepto y evoluci\u00f3n hist\u00f3rica de la microbiolog\u00eda<\/li>\n\n\n\n<li>Importancia de la microbiolog\u00eda en el \u00e1rea de Ciencias\u00a0 y Tecnolog\u00eda de los alimentos<\/li>\n\n\n\n<li>Clasificaci\u00f3n de los\u00a0 microorganismos en el mundo de los seres vivos<\/li>\n\n\n\n<li><strong>Estructura y funci\u00f3n de la c\u00e9lula procariota<\/strong><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Aspectos generales de la c\u00e9lula procariota (tama\u00f1o, forma, agrupaci\u00f3n y estructura celular)<\/li>\n\n\n\n<li>Sistema de envolturas, ap\u00e9ndices y organelos<\/li>\n\n\n\n<li>Gen\u00e9tica bacteriana:\n<ol class=\"wp-block-list\">\n<li>ADN cromosomal y extracomosomal<\/li>\n\n\n\n<li>Variaci\u00f3n gen\u00e9tica (mutaci\u00f3n y din\u00e1mica de poblaciones)<\/li>\n\n\n\n<li>Recombinaci\u00f3n gen\u00e9tica (transformaci\u00f3n, conjugaci\u00f3n y transducci\u00f3n)<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fisiolog\u00eda, metabolismo y crecimiento bacteriano<\/strong><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Fisiolog\u00eda y metabolismo bacteriano\n<ol class=\"wp-block-list\">\n<li>Metabolismo energ\u00e9tico y nutrici\u00f3n bacteriana<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Bios\u00edntesis.<\/li>\n\n\n\n<li>Crecimiento bacteriano:\n<ol class=\"wp-block-list\">\n<li>Factores que afectan el crecimiento bacteriano (pH, temperatura, aw, nutrientes, luz, potencial \u00f3xido-reducci\u00f3n)<\/li>\n\n\n\n<li>Medios de cultivos naturales y artificiales<\/li>\n\n\n\n<li>Curva de crecimiento bacteriano<\/li>\n\n\n\n<li>Control del crecimiento microbiano (agentes f\u00edsicos, qu\u00edmicos y biol\u00f3gicos)<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Taxonom\u00eda de los procariontes<\/strong><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Principios de taxonom\u00eda bacteriana\n<ol class=\"wp-block-list\">\n<li>Concepto de especie y cepa<\/li>\n\n\n\n<li>Escalas taxon\u00f3micas y\u00a0 nomenclatura<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Clasificaci\u00f3n bacteriana\n<ol class=\"wp-block-list\">\n<li>Criterios utilizados (taxonom\u00eda num\u00e9rica, composici\u00f3n de bases del ADN, hibridaci\u00f3n entre \u00e1cido nucleico, secuenciaci\u00f3n del ARNr)<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Clasificaci\u00f3n filogen\u00e9tica de las bacterias (Bergey\u2019s Manual of\u00a0 Systematic Bacteriology)\n<ol class=\"wp-block-list\">\n<li>Proteobacterias y Fimicutes<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Principales taxones bacterianos que incluyen especies bacterianas ben\u00e9ficas y\/o perjudiciales para la industria de alimentos (Bergey\u2019s manual of Determinative Bacteriology)\n<ol class=\"wp-block-list\">\n<li>Espiroquetas (G\u00b0<em>Leptospira<\/em>)<\/li>\n\n\n\n<li>Bacilos Gram negativos h\u00e9licos (G\u00b0\u00a0<em>Alteromonas<\/em>,\u00a0<em>Campylobacter<\/em>\u00a0y\u00a0<em>Helicobacter<\/em>)<\/li>\n\n\n\n<li>Bacilos y cocos Gram negativos aerobios (G\u00b0\u00a0<em>Acetobacter<\/em>,\u00a0<em>Acinetobacter<\/em>,\u00a0<em>Alcaligenes<\/em>,\u00a0<em>Alteromonas<\/em>,\u00a0<em>Brucella<\/em>,\u00a0<em>Flavobacterium<\/em>,\u00a0<em>Gluoconobacter<\/em>,\u00a0<em>Moraxella<\/em>,\u00a0\u00a0<em>Pseudomonas<\/em>\u00a0y\u00a0<em>Xanthomonas<\/em>).<\/li>\n\n\n\n<li>Bacilos Gram negativos anaerobios facultativos (Fam.\u00a0<em>Enterobacteriaceae<\/em>\u00a0y\u00a0<em>Vibrionaceae<\/em>\u00a0y G\u00b0\u00a0<em>Zymomonas<\/em>)<\/li>\n\n\n\n<li>Cocos Gram positivos (G\u00b0\u00a0<em>Enterococcus<\/em>,\u00a0<em>Kocuria<\/em>,\u00a0<em>Lactococcus<\/em>,\u00a0<em>Leuconostoc<\/em>,\u00a0<em>Micrococcus<\/em>,\u00a0<em>Pediococcus<\/em>,\u00a0<em>Sarcina<\/em>,\u00a0<em>Staphylococcus<\/em>\u00a0y\u00a0<em>Streptococcus<\/em>)<\/li>\n\n\n\n<li>Bacilos formadores de endosporas (<em>Bacillus<\/em>,\u00a0<em>Clostridium<\/em>,\u00a0<em>Desufotamaculum<\/em>,\u00a0<em>Geobacillus<\/em>,\u00a0<em>Brevibacillus<\/em>\u00a0y\u00a0<em>\u00a0Paenibacillus<\/em>)<\/li>\n\n\n\n<li>Bacilos Gram positivos regulares no formadores de endoesporas (G\u00b0\u00a0<em>Brochothrix<\/em>,\u00a0<em>Erysipelothrix<\/em>,\u00a0<em>Lactobacillus<\/em>\u00a0y\u00a0<em>Listeria<\/em>)<\/li>\n\n\n\n<li>Bacilos Gram positivos irregulares no formadores de endosporas (G\u00b0\u00a0<em>Bifidobacterium<\/em>,\u00a0<em>Corynebacterium<\/em>\u00a0y\u00a0<em>Propionibacterium<\/em>)<\/li>\n\n\n\n<li>Micobacterias (G\u00b0\u00a0<em>Mycobacterium<\/em>)<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>Virolog\u00eda<\/strong>\n<ol class=\"wp-block-list\">\n<li>Caracter\u00edsticas estructurales\n<ol class=\"wp-block-list\">\n<li>Acido nucleico, c\u00e1pside y envolturas.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Ciclos de multiplicaci\u00f3n viral.<\/li>\n\n\n\n<li>Bacteri\u00f3fago (Iinfecci\u00f3n l\u00edtica y lis\u00f3gena)<\/li>\n\n\n\n<li>Propiedades f\u00edsico-qu\u00edmicas (resistencia y susceptibilidad al calor, fr\u00edo, pH y agentes antimicrobianos)<\/li>\n\n\n\n<li>Principales virus de transmisi\u00f3n fecal-oral (taxonom\u00eda, etiolog\u00eda, patolog\u00eda, epidemiolog\u00eda, profilaxis y control)\n<ol class=\"wp-block-list\">\n<li>Fam.\u00a0<em>Picornaviridae<\/em>\u00a0(Poliovirus, Coxsakievirus, Echovirus, Enterovirus y Virus Heptatitis A)<\/li>\n\n\n\n<li>Fam.\u00a0<em>Caliciviridae<\/em>\u00a0(Virus Hepatitis E, Virus de Norwalk, Virus Sapporo)\u00a0<\/li>\n\n\n\n<li>Fam.\u00a0<em>Reoviridae<\/em>\u00a0(Rotavirus)\u00a0<\/li>\n\n\n\n<li>Fam.\u00a0<em>Adenoviridae<\/em>\u00a0(Adenovirus)<\/li>\n\n\n\n<li>Fam.\u00a0<em>Astroviridae<\/em>\u00a0(Astrovirus)<\/li>\n\n\n\n<li>Fam. Reoviridae (Rotavirus)<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Priones (Etiolog\u00eda, patolog\u00eda, epidemiolog\u00eda, profilaxis y control)\n<ol class=\"wp-block-list\">\n<li>Scrapie, Kuru, Encefalopat\u00eda Espongiforme Bovina (BSE), Creutzfeldt-Jakob (CDJ) y \u00a0Nueva variante de Creutzfeldt-Jakob (nvCDJ)<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Micolog\u00eda<\/strong>\n<ol class=\"wp-block-list\">\n<li>Caracter\u00edsticas estructurales de los hongos (mohos, levaduras y macromicetos)<\/li>\n\n\n\n<li>Sistemas de reproducci\u00f3n y propagaci\u00f3n<\/li>\n\n\n\n<li>Actividad y rol ecol\u00f3gico<\/li>\n\n\n\n<li>Metabolismo y condiciones de crecimiento<\/li>\n\n\n\n<li>Principales taxones de levaduras, mohos y macromicetos que incluyen especies ben\u00e9ficas y\/o perjudiciales para la industria de alimentos:\n<ol class=\"wp-block-list\">\n<li><em>Zygomicota<\/em>:\u00a0 Mohos (G\u00b0\u00a0<em>Mucor, Rhizopus\u00a0<\/em>)<\/li>\n\n\n\n<li><em>Ascomycota<\/em>: Mohos (G\u00b0\u00a0<em>Eupenicillium\/Penicillium<\/em>,\u00a0<em>Emericella y Eurotium \/Aspergillus<\/em>,\u00a0<em>Gibberella\/Fusarium, Colletotrichum<\/em>,\u00a0<em>Tuber<\/em>). Levaduras \u00a0(G\u00b0\u00a0<em>Debaryomyces<\/em>,\u00a0<em>Kluyveromyces<\/em>,\u00a0<em>Pichia<\/em>,\u00a0<em>Saccharomyces<\/em>,\u00a0<em>Torulospora<\/em>,\u00a0<em>Zygossacharomyces<\/em>,\u00a0<em>Schizosaccaromyces<\/em>)<\/li>\n\n\n\n<li><em>Basidiomycota:\u00a0<\/em>Macromicetos (G\u00b0\u00a0<em>Agaricus<\/em>,\u00a0<em>Lactarius<\/em>,\u00a0<em>Boletus<\/em>\u00a0<em>Cyttaria<\/em>). Mohos (G\u00b0\u00a0<em>Sclerotium<\/em>,\u00a0<em>Rhizoctonia<\/em>).<\/li>\n\n\n\n<li><em>Deuteromycota<\/em>: Mohos (G\u00b0<em>Alternaria<\/em>,\u00a0<em>Aspergillus<\/em>,\u00a0<em>Botrytis<\/em>,\u00a0<em>Byssochlamys<\/em>,\u00a0<em>Cladosporium, Fusarium, \u00a0Geotrichum, Penicillium<\/em>\u00a0). Levaduras (G\u00b0<em>Brettanomyces<\/em>,\u00a0<em>Candida<\/em>,\u00a0<em>Cryptococcus<\/em>,\u00a0<em>Rhodotorula<\/em>,\u00a0<em>Trichosporum<\/em>,\u00a0<em>Kloeckera<\/em>)<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Protozoolog\u00eda y parasitolog\u00eda<\/strong><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Caracter\u00edsticas estructurales de protozoos y helmintos transmitidos por alimentos<\/li>\n\n\n\n<li>Principales taxones de protozoos y helmintos que incluyen especies transmitidas por alimentos (ciclos evolutivos, patolog\u00eda y epidemiolog\u00eda).\n<ol class=\"wp-block-list\">\n<li>Protozoos(<em>Giardia lamblia,\u00a0 Entamoeba histolytica<\/em>,\u00a0<em>Cryptosporidium parvum<\/em>,\u00a0<em>Cyclospora gayatenensis,<\/em>\u00a0<em>Toxoplasma gondii<\/em>,\u00a0<em>Pseudonitzchia\u00a0<\/em>spp.,\u00a0<em>Alexandrium catenella,<\/em>\u00a0<em>Dinophysis acuta<\/em>)<\/li>\n\n\n\n<li>Platelmintos (<em>Taenia solium, T. saginata<\/em>,\u00a0<em>Diphyllobotrium latum, D. pacificum, Fasciola hepatica<\/em>)<\/li>\n\n\n\n<li>\u00a0Nematelmintos (<em>Ascaris lumbricoides<\/em>,\u00a0<em>Anisakis simplex, Trichinella spiralis<\/em>)<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Prevenci\u00f3n y control de las enfermedades parasitarias<\/li>\n\n\n\n<li><strong>Interacci\u00f3n hu\u00e9sped-par\u00e1sito<\/strong>\n<ol class=\"wp-block-list\">\n<li>Mecanismos de patogenicidad de bacterias, hongos, virus, protozoos y helmintos<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>METODOLOGIA.<\/strong><\/p>\n\n\n\n<p>El programa de la asignatura se desarrollar\u00e1 mediante el m\u00e9todo de clase magistral, con discusi\u00f3n de aspectos relevantes, utilizando la proyecci\u00f3n de diapositivas como principal material de apoyo visual.&nbsp; No obstante, para lograr la comprensi\u00f3n de las distintas unidades program\u00e1ticas y fomentar la participaci\u00f3n del alumno se incluye la lectura, comprensi\u00f3n y discusi\u00f3n cr\u00edtica de art\u00edculos cient\u00edficos espec\u00edficos y relevantes a los temas tratados en las clases magistrales, as\u00ed como la presentaci\u00f3n de seminarios en base a art\u00edculos cient\u00edficos sobre temas afines y de inter\u00e9s para la formaci\u00f3n&nbsp; profesional de cada alumno.<\/p>\n\n\n\n<p><strong>EVALUACI\u00d3N<\/strong><\/p>\n\n\n\n<p>La evaluaci\u00f3n se llevar\u00e1 cabo mediante la realizaci\u00f3n de dos ex\u00e1menes escritos y la presentaci\u00f3n de un seminario sobre alg\u00fan tema de inter\u00e9s personal o relevante para la asignatura.&nbsp;&nbsp; Los ex\u00e1menes tendr\u00e1n una ponderaci\u00f3n del 35 % cada uno (70 %), mientras que el seminario tendr\u00e1 una ponderaci\u00f3n de un 30 %.<\/p>\n\n\n\n<p><strong>BIBLIOGRAFIA.<\/strong><\/p>\n\n\n\n<p><strong>Libros<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Madigan, M.T., Martinko, J.M. &amp; Parker, J. 2004. Brock: Biolog\u00eda de los Microorganismos. 10\u00aa Ed. Madrid, Person Prentice Hall. 1096p.<\/li>\n\n\n\n<li>Prescott, L.M., Harley, J.P. &amp; Klein, D.A. 2004. Microbiolog\u00eda. 5ta ed. Madrid, McGraw-Hill\/Interamericana. 1072p.<\/li>\n\n\n\n<li>Bergey&#8217;s Manual of Determinative Bacteriology (1994).\u00a0 9th edition Williams &amp; Wilkins.<\/li>\n\n\n\n<li>Bergey\u2019s Manual of Systematic Bacteriology (2005). 2nd edition.\u00a0<a>Volume 2: The proteobacteria (<\/a>parts A-C).\u00a0 Springer.<\/li>\n\n\n\n<li>Bergey\u2019s Manual of Systematic Bacteriology (2009). 2nd edition. Volume 3: The Firmicutes.\u00a0 Springer.<\/li>\n\n\n\n<li>Goyal. S.M. (2006). Viruses in foods. Springer-Verlag, 355p.<\/li>\n<\/ol>\n\n\n\n<p><strong>Art\u00edculos<\/strong><\/p>\n\n\n\n<p>&#8211; Revisiones y art\u00edculos originales publicados en revistas ISI (Food Microbiology \u2013 International Journal of Food Microbiology) que ser\u00e1n bajados de la base de datos de Science Direct (http:\/\/www.sciencedirect.com).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>IDENTIFICACION. C\u00f3digo:&nbsp;522186 NOMBRE DE LA ASIGNATURA :&nbsp;FUNDAMENTOS DE MICROBIOLOGIA DE ALIMENTOS&nbsp; FACULTAD :&nbsp; FACSA &nbsp; &nbsp; UNIDAD ACADEMICA :&nbsp; Departamento de Ingenier\u00eda en Alimentos N\u00ba CREDITOS :&nbsp; 4 &nbsp; &nbsp; REQUISITOS : &nbsp; &nbsp; DESCRIPCION Y OBJETIVOS. 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