We developed and implemented a methodology that allowed extracting and evaluating high molecular weight polysaccharides present in the gel of Aloe barbadensis Miller. One of the fractions evaluated revealed the presence of high molecular weight carbohydrates (200 kDa) with a behavior similar to that of acemannan and another fraction with compounds of molecular weights between 17 and 47 kDa. We quantified the concentration of acemannan for two different growing periods. The concentration of acemannan in the high molecular weight fraction was 99.97 ppm in the rainy season and 106.03 ppm in the dry season. The concentration of acemannan in the fraction of low molecular weight was 9.364 ppm during the season of greatest rainfall and 26.939 ppm in the dry season.
Se analiza el contenido bromatológico y bioactivo de residuos agroindustriales provenientes de frutas y vegetales con el fin de darle un valor agregado. Se utilizaron cáscaras de papaya, zanahoria, berenjena y lima, las cuales fueron secadas previamente, molidas y tamizadas para luego determinar la humedad, cenizas, fibra, proteína, extracto etéreo, así como la extracción y cuantificación de compuestos tales como carotenos, polifenoles totales, flavonoides, antocianinas y la capacidad antioxidante. Los resultados indicaron que las cáscaras de papaya y de berenjena presentaron las mejores características de calidad bromatológicas para cenizas (10.45 y 9.2%), proteína (2.23 y 13.50%), fibra (0.643 y 1.88%) y capacidad antioxidante (99.63 y 97.90%) con las que se podrían desarrollar productos de utilidad en la industria alimentaria o farmacéutica.
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