Fructanos

Fructans, a heterogeneous mixture of fructose polymers, are increasingly being added to foodstuffs and medical treatments with claims of health benefits. In Mexico, fructans are isolated from the Agaves and are considered prebiotics. Little progress has been made on the study of the beneficial... Leer +

Agave syrups are gaining popularity as new natural sweeteners. Identification, classification and discrimination by infrared spectroscopy coupled to chemiometrics (NIR-MIR-SIMCA-PCA) and HPAEC-PAD of Agave syrups from natural sweeteners were achieved. MIR-SIMCA-PCA allowed us to classify the... Leer +

Fructans are the main carbohydrates of reserve in the Agave genus, comprising between the 65 to 97% of total carbohydrates. Cooked musts obtained from some Agave plants are used to produce fermented spirits such as tequila or mezcal. Main microorganisms involved in these fermentations belong to the... Leer +

In this work we evaluated the prebiotic effect of Agave fourcroydes fructans in an animal model. Male mice (C57BL/6J) were fed on parallel forms with a standard diet or diets supplemented with 10% of fructans from Cichorium intybus (Raftilose P95) and Agave fourcroydes from Cuba for 35 days. The... Leer +

Una de las primeras plantas que los indígenas mesoamericanos aprovecharon fue el agave, se empleaba como alimento, aglutinante, bebida, material de construcción, medicina, fibra, calzado, herramienta. En los últimos 20 años se ha avanzado en el estudio del agave, principalmente en los fructanos que... Leer +

Agave salmiana is a fructan rich species that is widely distributed in Mexico. The aim of this investigation was to extract the fructans of A. salmiana and evaluate their prebiotic effect in 48 hours in vitro cultures of Bifidobacterium lactis and Lactobacillus acidophilus and to compare this... Leer +

Previous studies have shown that fructans, a soluble dietary fiber, are beneficial to human health and offer a promising approach for the treatment of some diseases. Fructans are nonreducing carbohydrates composed of fructosyl units and terminated by a single glucose molecule. These carbohydrates... Leer +

The aim of this study was assess the effect of Agave fructans and a shift of diet on metabolic parameters in overweight mice. Firstly, C57BL6 mice were feed to a standard diet (CG) or high fat (HF) diet during 5 weeks, with the finality to induce overweight in the animals, followed of a shift of... Leer +

A set of ingredients from chicory and Agave were analyzed to obtain the carbohydrate distribution and band profiling through Ultrafiltration and High Performance Thin Layer Chromatography (HPTLC). For method standardization, reference materials and ingredients were used. Carbohydrate distribution... Leer +

The prebiotic effect of agave fructans (Agave salmiana) was evaluated through the growth of two lactic acid bacterial (LAB) strains (Lactobacillus casei and Bifidobacterium lactis). The immune system was activated through the stimulation of peripheral blood mononuclear cells (PBMC) of healthy... Leer +

The effectiveness of fructans as protectant agent to prevent protein denaturation was evaluated during freezedrying and storage. Native agave fructans and two fractions obtained by ultrafiltration were assessed as protective agents. Since the protein denaturation during freeze-drying can alter the... Leer +

El maguey mezcalero potosino (Agave salmiana Otto ex Salm-Dick) ha sido una fuente importante de alimentos y materiales desde tiempos prehispánicos hasta la actualidad. La articulación de su aprovechamiento integral y polivalente tanto como materia prima de la industria mezcalera, como de sus... Leer +

During tequila production, a huge amount of waste is produced, including leaves. Main compounds found in these subproducts are polysaccharides. Current review focuses on the use of these agricultural wastes to obtain inulinases, and in the production of high fructose syrup using these enzymes in... Leer +

A set of ingredients from chicory and Agave were analyzed to obtain the carbohydrate distribution and band profiling through Ultrafiltration and High Performance Thin Layer Chromatography (HPTLC). For method standardization, reference materials and ingredients were used. Carbohydrate distribution... Leer +

We evaluated the effect of supplementation using 10% agavins with a short degree of polymerization (SDP) from Agave angustifolia Haw. or Agave potatorum Zucc. along with chicory fructans (RSE) as a reference for 5 weeks, on the energy intake, body weight gain, satiety-related hormones from the gut... Leer +

Enzymatic/Spectrophotometric AOAC 999.03 fructan measurement method was modified with the objective to quantify agave fructans. Modified method result in about 25% of underestimation when fructans were mixed with food matrices. The effect over fructan losses resulted from thermal process was... Leer +

Colon cancer is a world concerning disease; it shows a high mortality rate and may be related to eating habits. Studies using inulin-like fructans, which are produced as energy supplies by several plants, have demonstrated a chemo-protective effect of these fructans in colon cancer. However,... Leer +

"We previously described the isolation of Aspergillus niger CH-A-2010, an indigenous strain that produces extracellular inulinases. Here we evaluated the potential application of A. niger CH-A-2010 inulinases for the bioconversion of A. tequilana fructans, and its impact on the production of... Leer +

aguamiel (sap from Agave salmiana) on

The fructan separation from a model sugar solution and natural agave juice was studied using a stirred-cell nanofiltration unit operated in concentration mode. Hydrophilic cellulose membrane with MWCO of 1000 Da was used. The experimental conditions were varied to predict the influence of pressure... Leer +

We previously described the isolation of Aspergillus niger CH-A-2010, an indigenous strain that produces extracellular inulinases. Here we evaluated the potential application of A. niger CH-A-2010 inulinases for the bioconversion of A. tequilana fructans, and its impact on the production of ethanol... Leer +

Agave tequilana fructans (ATF) constitute a substrate for bioethanol and tequila industries. As Kluyveromyces marxianus produces specific fructanases for ATF hydrolysis, as well as ethanol, it can perform simultaneous saccharification and fermentation.

El jarabe de agave es una sustancia dulce natural producida por hidrólisis de los fructanos de agave. Este endulzante se ha vuelto popular respecto a otros jarabes y mieles de origen natural por su capacidad prebiótica y bajo índice glicémico, aunque hay poca literatura disponible acerca de las... Leer +

La hidrólisis enzimática de fructanos de agave para la obtención de jarabes de fructosa y fructooligosacaridos (FOS) es de gran interés en la industria de alimentos y suplementos alimenticios, por lo que la búsqueda de enzimas con preferencia por hidrolizar este tipo de fructanos ha sido relevante... Leer +

Fructans were extracted from Agave salmiana juice, characterized and subjected to hydrolysis process using a commercial Inulinase. To compare the performance of the enzymatic preparation, a batch of experiments were also conducted with chicory inulin. Hydrolysis was performed for 6 h at two... Leer +

Thermal properties and its dependence on water sorption properties of agave fructans were investigated. The thermal decomposition temperatures were observed below to 200ºC. The moisture sorption isotherm of agave fructans was determined at 20°C and fitted to the GAB model. Modulated-differential... Leer +

Fructan, as reserve carbohydrate, supply energy needs during vegetative development, thereby exhibiting variations in its content and composition. Fructan metabolism in Agave tequilana Blue variety from two- to seven-year-old plants was analyzed in this work. Soluble carbohydrates were determined... Leer +

Fructans are the main storage polysaccharides found in Agave species. The synthesis of these complex Carbohydrates relies on the activities of specific fructosyltransferase enzymes closely related to the hydrolytic invertases. Analysis of Agave tequilana transcriptome data led to the identification... Leer +

The particle size is a variable to be controlled for process optimization hydrolysis whether chemical or biological, therefore, a study was conducted to determine the effect of particle size and aeration on delignification of waste corn using a basidiomycete fungus

A nivel nutricional la obesidad se deriva del desequilibrio entre el consumo y el aporte de energía. Una dieta hipercalórica es aquella que rebaza los requerimientos energéticos. Una ingestión energética mayor que el gasto energético total, inevitablemente causará un aumento del tejido adiposo, que... Leer +

Fructans contribute significantly to dietary fiber with beneficial effects on gastrointestinal physiology in healthy individuals and offer a promising approach to treating some diseases. Two experiments (Experiment 1 = rats with normal weight; Experiment 2 = obese rats) were developed to compare... Leer +

The effects of fructans of Cichorium intybus, Helianthus tuberosus and Agave angustifolia spp. tequilana were evaluated on in vitro growth of Lactobacillus acidophilus, Lactobacillus casei and Bifidobacterium lactis. Fructan concentrations were 0, 7, 14 or 21 g/L of man rogosa sharpe broth. The pH... Leer +

A fructanase, produced by a Kluyveromyces marxianus strain isolated during the fermentation step of the elaboration process of “Mezcal de Guerrero” was purified and biochemically characterized. For the hydrolysis of Agave tequilana fructans, the enzyme showed a higher enzymatic activity and... Leer +

In this work, the response surface methodology was employed to optimize the microencapsulation of Agave tequilana Weber var. azul juice with whey protein isolated using a spray drying technique. A Box-Behnken design was used to establish optimum spray drying conditions for Agave tequilana juice.... Leer +

The aim of this study was to obtain powder products with high fructan content by spray-drying of the Agave salmiana juice. A laboratory scale spray dryer operated at inlet air temperatures of 140-160 °C was employed. Maltodextrin (10 DE) and gum arabic were used as carrier agents at levels between... Leer +

El 75 % de las especies del género Agave se encuentran distribuidas en el territorio mexicano. Agave salmiana Otto ex Salm-Dick es la más abundante en el altiplano potosino - zacatecano y se utiliza principalmente para la elaboración de mezcal. En la región potosina el proceso tradicional de... Leer +

"The composition of water-soluble carbohydrates from Agave tequilana plants of 2, 4 and 6½ years were compared by HPLC, HPAEC-PAD, MALDI-TOF-MS and GC–MS. The plants of 2 years exhibited the highest levels of free monosaccharide and low molecular weight fructans (DP 3–DP 6) with potential... Leer +

Agave tequilana Weber var. Azul plants reproduce asexually by producing ramets. Continuous production of ramets throughout the vegetative cycle of the parent delays the time of harvesting of heads for tequila production. Little is known about the factors influencing their emergence. Heads are... Leer +

Forty eight rats were randomly assigned to one of the eight treatments resulting from a complete 2 X 4 factorial arrangement of treatments. In non-diabetic (ND) and streptozotocin-diabetic (D) rats we evaluate HFAS (high-fructose agave syrup) intake on plasma concentrations of diabetes related... Leer +

The aim of this work was to investigate the growth rate of six bifidobacteria and four lactobacilli strains when fructans and mixtures with different degrees of polymerization (DP) from A. angustifolia were used as an energy source. We observed that agave fructans stimulated the growth of... Leer +

Phenology studies the effect of seasonal and climatic variations on plant life cycles; and these variations are mainly due to temperature, light and precipitation changes among others. The content and type of carbohydrate are often used to establish seasonal, varietal, phenological and... Leer +

Prebiotics of the inulin-type fructans have been studied for many years under a wide range of conditions, including concentration, degree of polymerization and variety of probiotics. This work is the first that addresses the potential of Agave spp. and Dasylirion sp. fructans as prebiotics.... Leer +

"In traditional tequila production, the heads of Agave tequilana Weber var. azul are cooked in brick ovens to hydrolyze the fructan content and release fermentable sugars. The juice generated during cooking (known as ‘‘cooking honey”) was collected periodically in a tequila distillery and... Leer +

Recent data reported that inulin-type fructans extracted from chicory roots regulate appetite and lipid/glucose metabolism, namely, by promoting glucagon-like peptide-1 (GLP-1) production in the colon. The Agave genus growing in different regions of Mexico also contains important amounts of... Leer +

Se realizaron diversas caractarizaciones fisicoquímicas y reológicas de fructanos de agave obtenidos por el proceso patentado por la U. de G.

Qualitative and quantitative characterization of nonstructural carbohydrates was conducted in raw and hydrolyzed juices extracted from Agave salmiana stems and leaves under three ripeness stages. By high-performance liquid chromatography (HPLC), fructose, glucose, sucrose, xylose, and maltose were... Leer +

"Recent data reported that inulin-type fructans extracted from chicory roots regulate appetite and lipid/glucose metabolism, namely, by promoting glucagon-like peptide-1 (GLP-1) production in the colon. The Agave genus growing in different regions of Mexico also contains important amounts of... Leer +

Se realizaron diversas caracterizaciones fisicoquímicas y reológicas de fructanos de agave obtenidos por el proceso patentado por la U. de G.

A full-length cDNA encoding for 1-SST in Agave tequilana Weber var. azul. was isolated, cloned and expressed in Pichia pastoris. The heterologous protein, with a molecular mass of 75 kDa, shows identity with different plant fructosyltransferases and invertases, which belong to the glycoside... Leer +

"A full-length cDNA encoding for 1-SST in Agave tequilana Weber var. azul. was isolated, cloned and expressed in Pichia pastoris. The heterologous protein, with a molecular mass of 75 kDa, shows identity with different plant fructosyltransferases and invertases, which belong to the glycoside... Leer +

Agave lechuguilla Torrey is a plant from the Agavaceae family that grows in arid areas, rocky and calcareous ground. It is exploited to obtain a fiber known in Mexico as ixtle. This fiber is used to manufacture brushes and in the construction industry due to its abrasive characteristics and high... Leer +

Agave lechuguilla Torrey is a plant from the Agavaceae family that grows in arid areas, rocky and calcareous ground. It is exploited to obtain a fiber known in Mexico as ixtle. This fiber is used to manufacture brushes and in the construction industry due to its abrasive characteristics and high... Leer +