Migración y salud en zonas fronterizas: Guatemala y México

Incluye Bibliografía

Migración y salud en zonas fronterizas: el Estado Plurinacional de Bolivia y la Argentina

Incluye Bibliografía

Migración y salud en zonas fronterizas: Nicaragua y Costa Rica

Incluye Bibliografía

Distribución espacial, migración interna y desarrollo en América Latina y el Caribe

Incluye Bibliografía

Factores demográficos del asentamiento y la circularidad en la migración México-Estados Unidos

Incluye Bibliografía

Aspectos sociales de la migración internacional: consideraciones preliminares

Incluye Bibliografía

Fecundidad diferencial e inmigrantes nicaragüenses en Costa Rica

Incluye Bibliografía

México y Estado de Guanajuato: transferencias intergeneracionales hacia los adultos mayores

Incluye Bibliografía

Las remesas de los migrantes latinoamericanos y caribeños en los Estados Unidos

Incluye Bibliografía

La migración interna de las grandes ciudades en América Latina: efectos sobre el crecimiento demográfico y la composición de la población

Incluye Bibliografía

Chemical composition and antioxidant activity of dried powder formulations of Agaricus blazei and Lentinus edodes

Several mushroom species have been pointed out as sources of antioxidant compounds, in addition to their important nutritional value. Agaricus blazei and Lentinus edodes are among the most studied species all over the world, but those studies focused on their fruiting bodies instead of other presentations, such as powdered preparations, used as supplements. In the present work the chemical composition (nutrients and bioactive compounds) and antioxidant activity (free radical scavenging activity, reducing power and lipid peroxidation inhibition) of dried powder formulations of the mentioned mushroom species (APF and LPF, respectively) were evaluated. Powder formulations of both species revealed the presence of essential nutrients, such as proteins, carbohydrates and unsaturated fatty acids. Furthermore, they present a low fat content (<2 g/100 g) and can be used in low-calorie diets, just like the mushrooms fruiting bodies. APF showed higher antioxidant activity and higher content of tocopherols and phenolic compounds (124 and 770 μg/100 g, respectively) than LPF (32 and 690 μg/100 g). Both formulations could be used as antioxidant sources to prevent diseases related to oxidative stress. © 2012 Elsevier Ltd. All rights reserved.

Informe de actividades del grupo de trabajo sobre la migración y el comportamiento de las remesas

Incluye Bibliografía

Extracellular β-fructofuranosidase from Fusarium graminearum: Stability of the spray-dried enzyme in the presence of different carbohydrates

Microbial enzymes have been used for various biotechnological applications; however, enzyme stabilization remains a challenge for industries and needs to be considered. This study describes the effects of spray-drying conditions on the activity and stability of β-fructofuranosidase from Fusarium graminearum. The extracellular enzyme β-fructofuranosidase was spray dried in the presence of stabilizers, including starch (Capsul) (SC), microcrystalline cellulose (MC), trehalose (TR), lactose (LC) and β-cyclodextrin (CD). In the presence of TR (2% w/v), the enzymatic activity was fully retained. After 1 year of storage, 74% of the enzymatic activity was maintained with the CD stabilizer (10% w/v). The residual activity was maintained as high as 80% for 1 h at 70°C when MC, SC and CD (5% w/v) stabilizers were used. Spray drying with carbohydrates was effective in stabilizing the F. graminearum β-fructofuranosidase, improved enzymatic properties compared to the soluble enzyme and demonstrated a potential use in future biotechnology applications. © 2013 Informa UK Ltd. All rights reserved.

Social science research relevant for population policies in Latin America

Includes bibliography

Investigaciones sociales relevantes para politicas de poblacion en America Latina

Incluye Bibliografía