Produccion de fructooligosacáridos por invertasa de Aspergillus niger IB56: un prebiotico de importancia para la salud humana y animal
; Rubio, María Cristina ; Latina, Carlos Federico 
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06/2012
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Universidad de Valparaíso. Facultad de Medicina
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Boletín Micológico
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0719-3114
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A partir de jarabe de fructosa se aislaron e identificaron microorganismos productores de invertasa. Aspergillus niger IB56 fue el que produjo mayor concentración de la enzima con actividad transferasa (5,6 U/ml). Se estudió la producción de fructooligosacáridos (FOS) a diferentes pH (3,0; 4,0; 4,5; 5,0 y 5,5); temperaturas (20, 25, 30 y 40 oC), concentración de sacarosa (150; 300 y 450 g/l) y tiempos de incubación (60; 90 y 120 min.). La máxima producción de FOS (105 g/l) se obtuvo con una concentración de sacarosa de 300 g/l; a pH 5,0; temperatura 20oC y a los 60 min de incubación. La enzima invertasa posee especificidad para producir FOS como 1-cestosa y nistosa, prebióticos de importancia en la industria farmacéutica porque tienen efectos benéficos sobre la salud y estimulan la flora microbiana del intestino humano y animal como Lactobacillus y Bifidobacterium.
Several microorganisms that produce invertase were isolated from fructose syrup and identified. Aspergillus niger IB56 was the one that produced the greatest concentration of the enzyme with transferase activity (5.6 U/ml). We studied the production of fructooligosaccharides (FOS) at different pH (3.0, 4.0, 4.5, 5.0 and 5.5), temperatures (20, 25, 30 and 40 oC), sucrose concentrations (150, 300 and 450 g/l) and incubation times (60, 90 and 120 min.). Maximum FOS production (105 g/l) was obtained with a sucrose concentration of 300 g/l, pH 5.0, at 20 oC after 60 min of incubation. The enzyme invertase specifically produces FOS such as 1-kestose and nistose, which are important prebiotics in the pharmaceutical industry because they have beneficial health effects and stimulate the intestinal microbial flora such as Lactobacillus and Bifidobacterium in humans and animals.
Several microorganisms that produce invertase were isolated from fructose syrup and identified. Aspergillus niger IB56 was the one that produced the greatest concentration of the enzyme with transferase activity (5.6 U/ml). We studied the production of fructooligosaccharides (FOS) at different pH (3.0, 4.0, 4.5, 5.0 and 5.5), temperatures (20, 25, 30 and 40 oC), sucrose concentrations (150, 300 and 450 g/l) and incubation times (60, 90 and 120 min.). Maximum FOS production (105 g/l) was obtained with a sucrose concentration of 300 g/l, pH 5.0, at 20 oC after 60 min of incubation. The enzyme invertase specifically produces FOS such as 1-kestose and nistose, which are important prebiotics in the pharmaceutical industry because they have beneficial health effects and stimulate the intestinal microbial flora such as Lactobacillus and Bifidobacterium in humans and animals.
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