{"id":7760,"date":"2024-08-08T11:06:18","date_gmt":"2024-08-08T11:06:18","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=7760"},"modified":"2024-08-08T11:06:18","modified_gmt":"2024-08-08T11:06:18","slug":"amylase","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/es\/amylase\/","title":{"rendered":"\u00bfCu\u00e1l es la diferencia entre la alfa-amilasa, la beta-amilasa y la amilasa glicosilada?"},"content":{"rendered":"<p>De acuerdo con el papel de \u03b1-amilasa, \u03b2-amilasa y sacarificaci\u00f3n amilasa diagrama es f\u00e1cil dejar que la gente piensa err\u00f3neamente que el papel de los tres sustratos deben ser almid\u00f3n, dextrina y maltosa, respectivamente, hay ni\u00f1os una vez me pregunt\u00f3 sacarificaci\u00f3n amilasa no es la enzima maltosa. Por lo tanto, creo que es necesario hacer un peque\u00f1o an\u00e1lisis de la funci\u00f3n de los tres.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7761\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-331.png\" alt=\"\" width=\"438\" height=\"55\" \/><\/p>\n<p>Para facilitar la comprensi\u00f3n de la funci\u00f3n de varios tipos de amilasas, es necesario identificar primero dos conjuntos de conceptos: <strong>almid\u00f3n de cadena recta frente a almid\u00f3n ramificado, y enlaces \u03b1-1,4-glicos\u00eddicos y \u03b1-1,6-glicos\u00eddicos.<\/strong><\/p>\n<p>Existen dos tipos de almid\u00f3n: el almid\u00f3n de cadena recta y el almid\u00f3n de cadena ramificada. La amilopectina de cadena recta es una estructura helicoidal no ramificada, formada por residuos de glucosa conectados s\u00f3lo por enlaces \u03b1-1,4-glicos\u00eddicos de cabeza a cola; la amilopectina de cadena ramificada est\u00e1 formada por residuos de glucosa conectados por enlaces \u03b1-1,4-glicos\u00eddicos de cabeza a cola en cada cadena, pero enlaces \u03b1-1,6-glicos\u00eddicos en las ramas.<\/p>\n<p><strong>La \u03b1-amilasa y su funci\u00f3n<\/strong><\/p>\n<p>La \u03b1-amilasa, tambi\u00e9n conocida como endoamilasa, es una metalohidrolasa que requiere iones de calcio, que se unen a la prote\u00edna enzim\u00e1tica para mostrar actividad, la cual puede perderse mediante el tratamiento con el agente quelante EDTA.<\/p>\n<p><strong>La \u03b1-amilasa puede hidrolizar aleatoriamente el enlace \u03b1-1,4-glicos\u00eddico dentro del almid\u00f3n, pero no puede hidrolizar el enlace \u03b1-1,6-glicos\u00eddico.<\/strong><\/p>\n<p><strong>Si el sustrato es almid\u00f3n de cadena recta, la hidr\u00f3lisis produce glucosa, maltosa y maltotriosa; si el sustrato actuante es almid\u00f3n de cadena ramificada, los productos de la hidr\u00f3lisis son glucosa, maltosa, maltotriosa y \u03b1-dextrina que contiene enlaces \u03b1-1,6-glicos\u00eddicos con m\u00e1s de tres residuos de glucosa.<\/strong><\/p>\n<p>Tambi\u00e9n hay que se\u00f1alar que los \u03b1 y \u03b2 en \u03b1-amilasa y \u03b2-amilasa no indican ninguna relaci\u00f3n conformacional, sino que simplemente est\u00e1n numerados.<\/p>\n<p>Existen varias formas de producir \u03b1-amilasa en la naturaleza, y la fermentaci\u00f3n microbiana, por ejemplo, es una de las m\u00e1s comunes. Adem\u00e1s, esta enzima tambi\u00e9n puede extraerse de plantas o animales, y las propiedades de la amilasa obtenida de distintas formas son diferentes. En el proceso de producci\u00f3n industrial, debido a la gran demanda de \u03b1-amilasa, \u00e9sta suele obtenerse mediante la fermentaci\u00f3n de hongos y bacterias. Bacillus subtilis, Bacillus sphaericus y Streptomyces sphaericus pueden producir \u03b1-amilasa.<\/p>\n<p><strong>La \u03b2-amilasa y su funci\u00f3n<\/strong><\/p>\n<p>La \u03b2-amilasa, tambi\u00e9n conocida como exoamilasa, es una hidrolasa que contiene grupos sulfhidrilos. La enzima parte del extremo no reductor del almid\u00f3n e hidroliza el enlace \u03b1-1,4-glicos\u00eddico secuencialmente con dos residuos de glucosa para producir maltosa, que no puede hidrolizar el enlace \u03b1-1,6-glicos\u00eddico, y tampoco puede cruzar el punto de ramificaci\u00f3n y quedarse con una dextrina muy larga, es decir, \u03b2-dextrina.<\/p>\n<p><strong>Por lo tanto, cuando la \u03b2-amilasa act\u00faa sobre almidones de cadena recta, produce casi exclusivamente maltosa; cuando se utiliza sobre almidones de cadena ramificada, los productos son maltosa y \u03b2-dextrina.<\/strong><\/p>\n<p><strong>La enzima R y su acci\u00f3n<\/strong><\/p>\n<p>Las enzimas R, tambi\u00e9n llamadas enzimas de desramificaci\u00f3n, act\u00faan sobre el enlace \u03b1-1,6-glicos\u00eddico. En presencia de enzimas de desramificaci\u00f3n, se hidroliza el enlace \u03b1-1,6-glicos\u00eddico de las especies \u03b1-dextrina y \u03b2-dextrina, y se eliminan las cadenas ramificadas.<\/p>\n<p>Las cadenas rectas restantes son hidrolizadas por la \u03b1-amilasa y la \u03b2-amilasa para producir maltosa y glucosa. Sin embargo, las R-amilasas no pueden hidrolizar directamente los enlaces \u03b1-1,6-glicos\u00eddicos de los almidones ramificados.<\/p>\n<p><strong>La amilasa glicosilante y su acci\u00f3n<\/strong><\/p>\n<p>La amilasa glucosilante, o glucoamilasa, es una enzima que hidroliza el almid\u00f3n en glucosa, donde el porcentaje de hidr\u00f3lisis puede alcanzar 100%, y se utiliza a menudo como agente sacarificante del almid\u00f3n. La glucoamilasa no es muy espec\u00edfica y es aplicable a muchas sustancias, no s\u00f3lo puede cortar el enlace \u03b1-1,4- glicos\u00eddico del extremo no reductor de la mol\u00e9cula de almid\u00f3n, sino tambi\u00e9n cortar el enlace \u03b1-1,6-glicos\u00eddico, s\u00f3lo que la hidr\u00f3lisis del enlace \u03b1-1,4-glicos\u00eddico es un poco m\u00e1s r\u00e1pida. Tambi\u00e9n puede <strong>hidrolizar la dextrina, la maltosa y el gluc\u00f3geno<\/strong>. La hidr\u00f3lisis se inicia a partir del extremo de la mol\u00e9cula de sustrato y es una exonucleasa.<\/p>\n<p>Los resultados de la acci\u00f3n de la \u03b1-amilasa, la \u03b2-amilasa y la amilasa glicosilada sobre el almid\u00f3n de cadena ramificada pueden representarse en el siguiente diagrama:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7762\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-33.jpg\" alt=\"\" width=\"534\" height=\"309\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>According to the role of \u03b1-amylase, \u03b2-amylase and saccharification amylase diagram is easy to let people mistakenly think that the role of the three substrates must be starch, dextrin and maltose, respectively, there are children once asked me saccharification amylase is not maltose enzyme. Therefore, I think it is necessary to do a little analysis [&hellip;]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the difference between alpha-amylase, beta-amylase, and glycosylated amylase? - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/es\/amylase\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the difference between alpha-amylase, beta-amylase, and glycosylated amylase? - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"According to the role of \u03b1-amylase, \u03b2-amylase and saccharification amylase diagram is easy to let people mistakenly think that the role of the three substrates must be starch, dextrin and maltose, respectively, there are children once asked me saccharification amylase is not maltose enzyme. 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