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1
artículo
Publicado 2024
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The germination of quinua improves the content of polyphenols, flavonoids, amino acids, dietary fiber, vitamin E, antioxidants and other bioactive compounds, making this pseudocereal a nutritious and healthy source for the preparation of functional foods. The aim of this work was to assess the effect of the germination of quinua on the nutritional, biological and functional properties, in turn to be able to analyze the potential that this golden grain has in the food industry. For the systematic review, the databases (Scopus, Scielo and Science Direct) were used, following the PRISMA guideline and the PIO strategy (Population, Intervention, Outputs), which helped to formulate the search equations and to identify the most relevant articles of the last 5 years. The results of the bibliometric analysis showed that the germination of quinua improves the nutritional properties and the content...
2
artículo
Publicado 2024
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The germination of quinua improves the content of polyphenols, flavonoids, amino acids, dietary fiber, vitamin E, antioxidants and other bioactive compounds, making this pseudocereal a nutritious and healthy source for the preparation of functional foods. The aim of this work was to assess the effect of the germination of quinua on the nutritional, biological and functional properties, in turn to be able to analyze the potential that this golden grain has in the food industry. For the systematic review, the databases (Scopus, Scielo and Science Direct) were used, following the PRISMA guideline and the PIO strategy (Population, Intervention, Outputs), which helped to formulate the search equations and to identify the most relevant articles of the last 5 years. The results of the bibliometric analysis showed that the germination of quinua improves the nutritional properties and the content...
3
tesis de grado
Publicado 2017
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En este trabajo de investigación, se estudiaron que compuestos son más óptimos como material adsorbente para el tratamiento de aguas, trabajando con ferrita y diatomita naturales. Para optimizar las propiedades de adsorción de cada uno de los materiales, se buscó adherir un compuesto derivado del carbono como el grafeno de tal forma que se pueda crear sinergias con sus propiedades excepcionales de adsorción, ya probados para la eliminación de metales pesados y contaminantes del agua. Siendo el grafeno un material investigado en los últimos años, lo cual ha permitido que sea desarrollado y utilizado para preparar estructuras compuestas con otros materiales, al mejorar sus propiedades y optimizar las características estructurales básicas, mejorando la capacidad de adsorción al ponerse en contacto con los contaminantes; facilitando la difusión de las moléculas contaminantes so...
4
tesis de grado
Publicado 2019
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Se elaboró producto alimenticio liofilizado utilizando mezcla de jugos de maracuyá (Passiflora edulis) y camu camu (Myrciaria dubia), frutas tropicales de la amazonia, que aportan componentes bioactivos importantes para el cuerpo humano. Se formularon mezclas de maracuyá/camu camu (v/v: 50/50; 70/30 y 90/10) usando encapsulante 0,2% CMC y 1,5% Goma arábiga, se formaron cubos de 1,5 cm de espesor congelados a -24°C/24 horas y secados en un liofilizador a 0,2 y 165 Pa durante 24 horas. Se determinaron las propiedades fisicoquímicas del jugo y en polvo liofilizado, como color, polifenoles totales y vitamina C. Los resultados indican 15 °Brix, 74,61 mgAG/ml y 24,55 mgAA/ml (vitamina C) en jugo maracuyá; 6 °Brix, 622,88 mgAG/ml y 2714,10 mgAA/ml (vitamina C) en jugo camu camu, lo que confirma una ligera sinergia en la mezcla de jugos 50/50 y en polvo liofilizado con 0,2% CMC a una pr...
5
Publicado 2018
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El objetivo de este trabajo de investigación fue los hidrocarburos aromáticos tienen importancia dentro de la industria, porque son la base de muchos productos o son esenciales para la fabricación de estos ' permiten que adquieran propiedades para su óptimo funcionamiento. Como se ha podido comprobar a través de la previa investigación, los hidrocarburos aromáticos se hallan en una serie de productos o plásticos, caucho, pinturas, colorantes, explosivos, pesticidas o detergentes, o perfumes, fármacos gasolina y aceites. La mayoría de hidrocarburos aromáticos son tóxicos, nocivos, fácilmente inflamables o requieren de un cuidado especial dentro de las industrias. Es por esto que en todos los casos de hidrocarburos desarrollados anteriormente se recomienda que se usen medidas estrictas de seguridad para manipularlos y almacenarlos. De lo contrario, pueden causar daños en...
6
artículo
Publicado 2019
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Maca is nutritious, energetic and functional food. As a defense mechanism, its secondary metabolites react to biotic and abiotic stress, during pre-harvest, harvest and traditional post-harvest drying. The aim of this review is to evaluate and provide relevant scientific information about bioactives, biochemistry and biological activity of the maca (Lepidium meyenii Walpers or Lepidium peruvianum Chacón) related to health and reassess its functional food condition. A search of four electronic databases and information required from the authors was used for this review. There is a lack of in vivo and clinical research with more representative sample sizes and more consistent methodologies. Therefore, glucosinolates, phenolic compounds, phytosterols, macaenes, macamides, macahidantoins, meyeniins, alkaloids and others formed during the productive cycle of maca act synergistically to preve...
7
artículo
Publicado 2019
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Maca is nutritious, energetic and functional food. As a defense mechanism, its secondary metabolites react to biotic and abiotic stress, during pre-harvest, harvest and traditional post-harvest drying. The aim of this review is to evaluate and provide relevant scientific information about bioactives, biochemistry and biological activity of the maca (Lepidium meyenii Walpers or Lepidium peruvianum Chacón) related to health and reassess its functional food condition. A search of four electronic databases and information required from the authors was used for this review. There is a lack of in vivo and clinical research with more representative sample sizes and more consistent methodologies. Therefore, glucosinolates, phenolic compounds, phytosterols, macaenes, macamides, macahidantoins, meyeniins, alkaloids and others formed during the productive cycle of maca act synergistically to preve...
8
artículo
Publicado 2019
Enlace
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Maca is nutritious, energetic and functional food. As a defense mechanism, its secondary metabolites react to biotic and abiotic stress, during pre-harvest, harvest and traditional post-harvest drying. The aim of this review is to evaluate and provide relevant scientific information about bioactives, biochemistry and biological activity of the maca (Lepidium meyenii Walpers or Lepidium peruvianum Chacón) related to health and reassess its functional food condition. A search of four electronic databases and information required from the authors was used for this review. There is a lack of in vivo and clinical research with more representative sample sizes and more consistent methodologies. Therefore, glucosinolates, phenolic compounds, phytosterols, macaenes, macamides, macahidantoins, meyeniins, alkaloids and others formed during the productive cycle of maca act synergistically to preve...
9
artículo
Publicado 2019
Enlace
Enlace
Maca is nutritious, energetic and functional food. As a defense mechanism, its secondary metabolites react to biotic and abiotic stress, during pre-harvest, harvest and traditional post-harvest drying. The aim of this review is to evaluate and provide relevant scientific information about bioactives, biochemistry and biological activity of the maca (Lepidium meyenii Walpers or Lepidium peruvianum Chacón) related to health and reassess its functional food condition. A search of four electronic databases and information required from the authors was used for this review. There is a lack of in vivo and clinical research with more representative sample sizes and more consistent methodologies. Therefore, glucosinolates, phenolic compounds, phytosterols, macaenes, macamides, macahidantoins, meyeniins, alkaloids and others formed during the productive cycle of maca act synergistically to preve...
10
artículo
Publicado 2015
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Objective:To identify obstacles and errors that manifest students of the National University of Apurimac –Micaela Bastidasregarding the use of different representations of the function concept. Method:Descriptive study with non-experimental design of simple descriptive type. The collection of information was done through a questionnaire composed of 9 open questions, a sample of 99 students from different careers of the University. Results:Students prevail with the conception of function as an equation. There is a better performance when they work with an algebraic expression that can be evaluated; when they are working in other forms of representation show difficulties to carry out coordination and conversions. Conclusion:It was identified the obstacle of epistemological and cognitive type related to the consideration that a function must be written by a single algebraic expression; an...
11
artículo
Publicado 2023
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In recent years, the consumption of beverages has increased; however, the excessive consumption of processed and packaged foods with a high sugar content is detrimental to human health as it has led to an increase in various metabolic diseases, which is why it is essential to introduce into the food chain new options of beverages enriched with fruit pulp, rich in polyphenolic compounds and antioxidants. This research sought to develop a functional beverage based on soybean juice and aguaymanto pulp sweetened with stevia, for which nine treatments were formulated consisting of 70, 80 and 90% soybean juice, 30, 20 and 10% aguaymanto pulp and 0.08, 0.10 and 0.12% stevia, and their physicochemical characteristics, sensory acceptability and bioactive composition were evaluated. The results showed that treatment 3 presented the highest sensory acceptability by the panelists with a score of 3.3...
12
tesis de maestría
Publicado 2017
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Tuberculosis is a leading killing disease worldwide with more than 9 million people a ected per year. Current diagnostic methods exhibit several disadvantages; one of the most promising alternatives to overcome this is the development of nanostructured diagnostic systems which are able to detect molecules associated with certain diseases. Graphene since its discovery has been the focus for the development of these sensing elements due to its excellent electronic properties. In this work, a graphene-based eld e ect transistor (FET) has been developed for tuberculosis DNA detection, in order to set the basis for a diagnostic method that overcomes current limitations. The sensing elements composed of graphene monolayers were manufactured in the stages of annealing of the substrate, addition of the linker and functionalization with the addition of a probe DNA for tuberculosis detection. Addi...
13
tesis de maestría
Publicado 2017
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Tuberculosis is a leading killing disease worldwide with more than 9 million people a ected per year. Current diagnostic methods exhibit several disadvantages; one of the most promising alternatives to overcome this is the development of nanostructured diagnostic systems which are able to detect molecules associated with certain diseases. Graphene since its discovery has been the focus for the development of these sensing elements due to its excellent electronic properties. In this work, a graphene-based eld e ect transistor (FET) has been developed for tuberculosis DNA detection, in order to set the basis for a diagnostic method that overcomes current limitations. The sensing elements composed of graphene monolayers were manufactured in the stages of annealing of the substrate, addition of the linker and functionalization with the addition of a probe DNA for tuberculosis detection. Addi...
14
tesis de grado
Publicado 2025
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Universidad Nacional Agraria La Molina. Facultad de Pesquería. Departamento Académico de Acuicultura e Industrias Pesqueras
15
tesis de grado
Publicado 2017
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The present work presents a series of studies carried out based on the antioxidant capacity of quinoa seeds, both raw, germinated, in flour, or in bread, and subjected to different controlled processes, and evaluating their increase or decrease in capacity. antioxidant Quinoa stands out in the world of foods for its high nutritional content, in this study its value as a functional food is highlighted, due to its high content of antioxidants. The antioxidant activity of the quinoa seeds was evaluated, measured by the methods: DPPH, ORAC, ABTS, FRAP and discoloration of beta carotene. The results obtained showed greater antioxidant capacity than most pseudocereals, with the exception of buckwheat. Likewise, the antioxidant activity of quinoa seeds, subjected to different processes, such as cooking, washing, spreading, baking and drying, was evaluated; which show highly significant differen...
16
artículo
Publicado 2016
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Some dye-sensitized solar cells were prepared using TiO2 modified with CuO (TiO2-CuO) like a working electrode. P25 commercial powder and small amounts of CuO powder were used in preparing the modified coating. The coating was deposited following doctor Blade method, on a conductive substrate SnO2:F, which was previously deposited on a TiO2 blocking layer by spray pyrolysis technique. For sensitization of the coating, a ruthenium complex, cis-bis (isothiocyanate) bis (2,2'bipiridil-4,4'dicarboxilato) ruthenium (II) ammonium bistetrabutil, also known as N719, was used. The CuO powder was structurally characterized by X-ray diffraction and its morphology was studied by scanning electron microscopy. The functional groups of TiO2 and CuO were studied by infrared spectroscopy. The oxidation and reduction cycles of Cu were shown by cyclic voltammetry. Through incident photon to current convers...
17
artículo
Publicado 2016
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In this work, it has been studied the influence of oxygenated functional groups on adsorption property of an activated carbon (CA), which was prepared from aguaje seeds (Mauritia flexuosa L. F.) by a chemical activation with phosphoric acid. Later the activated carbon was oxidized with nitric acid. The adsorptive capacity of phenolic compounds such as phenol, 4-chlorophenol and 4-nitrophenol were compared using both of the adsorbents, the activated carbon (CA) and the oxidized activated carbon (ACA). The characterizations of both activated carbons were analyzed by nitrogen adsorption measurements, Boehm titration, scanning electron microscopy (SEM) and FTIR spectroscopy. The oxidized sample (ACA) showed an increase in the microporous area from 756 m2/g to 1272 m2/g, likewise ACA presented an increase in the concentration of oxygenated functional groups from 4,22 mmolH+.g-1 to 4,82 mmolH+...
18
artículo
Publicado 2018
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This study analyzes the relationship that presents 11 aromatic compounds with heterocyclic Schiff bases and substituted in position meta and para with antioxidant activity, using the method UB3LYP/6-311G(d,p) within density functional theory.We determine the parameters: bond dissociation enthalpy (BDE), ionization potential (IP), protons dissociation enthalpy (PDE), affinity of protons (PA), electrons transfer enthalpy (ETE) and radical stabilization energy (RSE), all in gaseous phase. The results show that electrodonorssubstituents increases BDE when they are in position para, IP in position meta and para and ETE in position para. In addition, the electroatractors cause an increase in PDE and PA at position meta and para.
19
artículo
Currently there is a great demand for food products containing functional properties and/or bioactive compounds. One of the fruits that has been widely studied is the murta (Ugni molinae), which appears to contain various beneficial health properties. This review compiles scientific information on the functional and beneficial properties of murta for human health, such as the main components associated with anti-inflammatory activity, antimicrobial activity, antioxidant activity, nutritional composition, other uses of murta, economic aspects, and current and future challenges of murta, all based on updated scientific work.
20
artículo
Currently there is a great demand for food products containing functional properties and/or bioactive compounds. One of the fruits that has been widely studied is the murta (Ugni molinae), which appears to contain various beneficial health properties. This review compiles scientific information on the functional and beneficial properties of murta for human health, such as the main components associated with anti-inflammatory activity, antimicrobial activity, antioxidant activity, nutritional composition, other uses of murta, economic aspects, and current and future challenges of murta, all based on updated scientific work.
