El objetivo del presente trabajo fue evaluar la calidad de la leche cruda en cuanto a sus propiedades fisicoquímicas, microbiológicas y toxicológicas, en siete cuencas representativas de la región Puno. Los resultados fueron comparados con los estándares establecidos en la Norma Técnica Peruana para leche y productos lácteos NTP 200.001-2003 y con la Norma Oficial Mexicana NOM-155-SCFI-2012 para los parámetros de proteína y lactosa en ausencia de parámetros peruanos. Para la caracterización fisicoquímica se determinó pH, acidez, densidad, contenido de grasa, proteína, lactosa, sólidos totales y sólidos no grasos; también se realizaron análisis microbiológicos de E. Coli y mesófilos. Del mismo modo, el estudio abarcó el análisis de residuos de pesticidas como son organoclorados, organofosforados, carbamatos y piretroides en concentración de 1,0 ug/g de muestra, los ...

El objetivo del presente trabajo fue evaluar la calidad de la leche cruda en cuanto a sus propiedades fisicoquímicas, microbiológicas y toxicológicas, en siete cuencas representativas de la región Puno. Los resultados fueron comparados con los estándares establecidos en la Norma Técnica Peruana para leche y productos lácteos NTP 200.001-2003 y con la Norma Oficial Mexicana NOM-155-SCFI-2012 para los parámetros de proteína y lactosa en ausencia de parámetros peruanos. Para la caracterización fisicoquímica se determinó pH, acidez, densidad, contenido de grasa, proteína, lactosa, sólidos totales y sólidos no grasos; también se realizaron análisis microbiológicos de E. Coli y mesófilos. Del mismo modo, el estudio abarcó el análisis de residuos de pesticidas como son organoclorados, organofosforados, carbamatos y piretroides en concentración de 1,0 ug/g de muestra, los ...

The objective of this study was to evaluate the quality of raw milk in seven representative basins of the region Puno. The results were compared with the standards established by the International Standard for milk and milk products NTP 200.001-2003 and the Official Mexican Standard NOM-155-SCFI-2012 for the parameters of protein and lactose in the absence of Peruvian parameters. For physicochemical characterization pH, acidity, density, fat, protein, lactose, total solids, fat solids was determined microbiological analysis of E. coli and mesophilic, just as we also performed the study spanned pesticide residue analysis such as organochlorines, organophosphates, carbamates and pyrethroids with sensitivity 1.0ug/g sample which gave negative results for the four groups of pesticides, the physicochemical determinations over 50% of the basins (except for pH and acidity) is found within the s...

The objective of this study was to evaluate the quality of raw milk in seven representative basins of the region Puno. The results were compared with the standards established by the International Standard for milk and milk products NTP 200.001-2003 and the Official Mexican Standard NOM-155-SCFI-2012 for the parameters of protein and lactose in the absence of Peruvian parameters. For physicochemical characterization pH, acidity, density, fat, protein, lactose, total solids, fat solids was determined microbiological analysis of E. coli and mesophilic, just as we also performed the study spanned pesticide residue analysis such as organochlorines, organophosphates, carbamates and pyrethroids with sensitivity 1.0ug/g sample which gave negative results for the four groups of pesticides, the physicochemical determinations over 50% of the basins (except for pH and acidity) is found within the s...

El objetivo del presente trabajo fue evaluar la calidad de la leche cruda en cuanto a sus propiedades fisicoquímicas, microbiológicas y toxicológicas, en siete cuencas representativas de la región Puno. Los resultados fueron comparados con los estándares establecidos en la Norma Técnica Peruana para leche y productos lácteos NTP 200.001-2003 y con la Norma Oficial Mexicana NOM-155-SCFI-2012 para los parámetros de proteína y lactosa en ausencia de parámetros peruanos. Para la caracterización fisicoquímica se determinó pH, acidez, densidad, contenido de grasa, proteína, lactosa, sólidos totales y sólidos no grasos; también se realizaron análisis microbiológicos de E. Coli y mesófilos. Del mismo modo, el estudio abarcó el análisis de residuos de pesticidas como son organoclorados, organofosforados, carbamatos y piretroides en concentración de 1,0 ug/g de muestra, los ...

El objetivo del presente estudio es evaluar las condiciones físicas y químicas de las aguas superficiales derivadas de los deshielos del nevado Riticucho en la Rinconada- Puno, los cuales evidentemente son afectados por la actividad minera informal desarrollada en esa localidad. El trabajo evalúa el efecto de esta actividad en sedimentos y agua de las lagunas Lunar y Cumunni, las cuales fueron evaluadas en temporada seca y temporada de lluvias en 2018. El análisis físicoquímico incluyó: pH, conductividad, OD, DBO5 , DQO, dureza, cloruros y sólidos en suspensión. También incluyó metales (As, Cd, Cu, Fe, Hg, Ni, Pb y Zn) en agua y sedimentos. El diseño de investigación es descriptiva, ya que se describen y analizan los datos encontrados, observándolos sin influenciar en ninguna variable del estudio. La metodología desarrollada fue la propuesta en los Métodos Estandarizados ...

La entomología, es el estudio científico de animales más diversos de la tierra con más de un millón de especies descritas que son los insectos. Algunos de ellos, tienen la función de controladores biológicos que son benéficos para mantener el ambiente en equilibrio, pero también se encuentran otros que son perjudiciales para el hombre ya sea de forma directa o indirecta. Estas especies constituyen las plagas que afectan la agricultura, así como los diferentes tipos de mosquitos que son vectores de enfermedades. En este contexto, uno de los problemas que enfrentan los agricultores en nuestro país son las diferentes plagas que malogran sus cosechas y como consecuencia afectan su economía, frente a esta contrariedad ellos utilizan insecticidas químicos, los cuales han traído problemas ambientales como son contaminación de suelos, de aguas y atmosfera; sin dejar de lado la sal...

Apply the educational program Happy Children Without Anemia (HCWA) in children at a public school in Puno department, supplying a fortified vegetable product to reduce anemia levels and improve their parents´ knowledge and healthy practices. A pre-experimental study with pre and post-test was carried out. The study population was children of the public school of Yocará, community of the province of San Roman. Hemoglobin data was obtained from 44 school-age children, ranging from 6 to 12 years old, who received bread fortified with beans and quinoa flour for 120 days. In the same way, both parents and students participated in nutritional talks and workshops with topics related to iron deficiency. The mean hemoglobin level was significantly increased to 0.51 g / dl (p <0.05), it was also possible to reduce mild anemia from 25.5% to 2.3% and moderate anemia from 18.6% to 7%. As for the...

Apply the educational program Happy Children Without Anemia (HCWA) in children at a public school in Puno department, supplying a fortified vegetable product to reduce anemia levels and improve their parents´ knowledge and healthy practices. A pre-experimental study with pre and post-test was carried out. The study population was children of the public school of Yocará, community of the province of San Roman. Hemoglobin data was obtained from 44 school-age children, ranging from 6 to 12 years old, who received bread fortified with beans and quinoa flour for 120 days. In the same way, both parents and students participated in nutritional talks and workshops with topics related to iron deficiency. The mean hemoglobin level was significantly increased to 0.51 g / dl (p <0.05), it was also possible to reduce mild anemia from 25.5% to 2.3% and moderate anemia from 18.6% to 7%. As for the...

Apply the educational program Happy Children Without Anemia (HCWA) in children at a public school in Puno department, supplying a fortified vegetable product to reduce anemia levels and improve their parents´ knowledge and healthy practices. A pre-experimental study with pre and post-test was carried out. The study population was children of the public school of Yocará, community of the province of San Roman. Hemoglobin data was obtained from 44 school-age children, ranging from 6 to 12 years old, who received bread fortified with beans and quinoa flour for 120 days. In the same way, both parents and students participated in nutritional talks and workshops with topics related to iron deficiency. The mean hemoglobin level was significantly increased to 0.51 g / dl (p <0.05), it was also possible to reduce mild anemia from 25.5% to 2.3% and moderate anemia from 18.6% to 7%. As for the...

Apply the educational program Happy Children Without Anemia (HCWA) in children at a public school in Puno department, supplying a fortified vegetable product to reduce anemia levels and improve their parents´ knowledge and healthy practices. A pre-experimental study with pre and post-test was carried out. The study population was children of the public school of Yocará, community of the province of San Roman. Hemoglobin data was obtained from 44 school-age children, ranging from 6 to 12 years old, who received bread fortified with beans and quinoa flour for 120 days. In the same way, both parents and students participated in nutritional talks and workshops with topics related to iron deficiency. The mean hemoglobin level was significantly increased to 0.51 g / dl (p <0.05), it was also possible to reduce mild anemia from 25.5% to 2.3% and moderate anemia from 18.6% to 7%. As for the...

This study was performed to investigate the volatile compounds for the characteristic aroma in jabuticaba fruit distributed in southern and central regions of Brazil. The present work combines headspace solid phase microextraction (HS-SPME) and high resolution gas chromatography-mass spectrometry (GC-MS) techniques to identify and quantify the volatile compounds. The influence of different SPME fibers (CAR/PDMS and DVB/CAR/PDMS) in extraction of volatile compounds was evaluated. The effects of extraction temperature and salt concentration (NaCl) in the extraction medium were studied using the response surface methodology in order to achieve the highest extraction efficiency. The better extraction of volatile compounds was achieved by using a CAR/PDMS fiber and the optimum adsorption conditions were at 42 °C for 30 min and 5% NaCl concentration. A total of 71 compounds were identified, a...

This study was performed to investigate the volatile compounds for the characteristic aroma in jabuticaba fruit distributed in southern and central regions of Brazil. The present work combines headspace solid phase microextraction (HS-SPME) and high resolution gas chromatography-mass spectrometry (GC-MS) techniques to identify and quantify the volatile compounds. The influence of different SPME fibers (CAR/PDMS and DVB/CAR/PDMS) in extraction of volatile compounds was evaluated. The effects of extraction temperature and salt concentration (NaCl) in the extraction medium were studied using the response surface methodology in order to achieve the highest extraction efficiency. The better extraction of volatile compounds was achieved by using a CAR/PDMS fiber and the optimum adsorption conditions were at 42 °C for 30 min and 5% NaCl concentration. A total of 71 compounds were identified, a...