Tópicos Sugeridos dentro de su búsqueda.
Tópicos Sugeridos dentro de su búsqueda.
Cañihua
4
Cocción – extrusión
4
Cooking
4
Food Mix
4
Llama meat
4
Mezcla Alimenticia
4
Quinoa
4
más ...
1
tesis de maestría
Publicado 2022
Enlace
Enlace
Descargue el texto completo en el portal de la revista Agronomy: https://doi.org/10.3390/agronomy12010142
2
artículo
Publicado 2020
Enlace
Enlace
In this work, maximum flows observed in the Paranapanema river basin are modeled by a mixture of two GEV distributions whose components correspond to the summer and winter subpopulations. The nonlinear discriminant function allowed to confirm the assumption of mixture model.The proposed model is then used to determine probabilities of exceedance and return periods associated with extreme flows, which are of fundamental importance for hydraulic projects. The results show significant differences when a mixture model is used and therefore an approach more coherent with the observed data.
3
artículo
Publicado 2020
Enlace
Enlace
In this work, maximum flows observed in the Paranapanema river basin are modeled by a mixture of two GEV distributions whose components correspond to the summer and winter subpopulations. The nonlinear discriminant function allowed to confirm the assumption of mixture model.The proposed model is then used to determine probabilities of exceedance and return periods associated with extreme flows, which are of fundamental importance for hydraulic projects. The results show significant differences when a mixture model is used and therefore an approach more coherent with the observed data.
4
artículo
Publicado 2025
Enlace
Enlace
Purple corn (Zea mays L.) is a superfood native to Peru, highly regarded for its functional properties and commonly used in the preparation of traditional beverages and desserts, such as chicha morada and mazamorra morada. Following processing, the corn cobs remaining as a byproduct retain significant amounts of bioactive compounds with potential for utilization. This study proposes their use as a primary component in the production of teas. To ensure product safety, the moisture content, total ash, and counts of enterobacteria and aflatoxins in the raw materials were first evaluated. Fourteen formulations were developed, varying in the proportions of corn cobs, quince, stevia, cinnamon, and cloves, as well as extraction times (5 and 10 minutes at 100 °C) with hot water. Two rapid sensory evaluation methods using consumer panels were applied sequentially: Flash Profile (FP) and Check-...
5
artículo
Publicado 2022
Enlace
Enlace
“Cotton is the most widely used natural fiber for textiles; however, the capacity of cotton fibers to absorb large amounts of moisture, retain oxygen, and have a high specific surface area makes them more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to continue the assessment of our developed nanocomposite and evaluate the antibacterial and antifungal activity of the nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC) against Escherichia coli, Staphylococcus aureus, and Candida albicans, evaluated by the well diffusion method. The antibacterial activity against E. coli and S. a...
6
artículo
Publicado 2022
Enlace
Enlace
Cotton is the most widely used natural fiber for textiles; however, the capacity of cotton fibers to absorb large amounts of moisture, retain oxygen, and have a high specific surface area makes them more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to continue the assessment of our developed nanocomposite and evaluate the antibacterial and antifungal activity of the nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC) against Escherichia coli, Staphylococcus aureus, and Candida albicans, evaluated by the well diffusion method. The antibacterial activity against E. coli and S. aure...
7
artículo
Publicado 2022
Enlace
Enlace
Cotton is the most widely used natural fiber for textiles but its innate capacity to absorb moisture, retain oxygen, and high specific surface area make it more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to synthesize and characterize a nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC), which was utilized to provide a functional finish to cotton fabric. The scanning electron microscope (SEM) to produce a scanning transmission electron microscope (STEM) image showed that the nanocomposite presents AgNPs with a 5–20 nm size. The X-ray diffraction (XRD) analysis confirmed the ...
8
artículo
Publicado 2022
Enlace
Enlace
Cotton is the most widely used natural fiber for textiles but its innate capacity to absorb moisture, retain oxygen, and high specific surface area make it more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to synthesize and characterize a nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC), which was utilized to provide a functional finish to cotton fabric. The scanning electron microscope (SEM) to produce a scanning transmission electron microscope (STEM) image showed that the nanocomposite presents AgNPs with a 5–20 nm size. The X-ray diffraction (XRD) analysis confirmed the ...
9
artículo
Publicado 2019
Enlace
Enlace
The research aims to formulate a food mixture based on quinoa, cañihua, barley, corn, beans and soy using cooking-extrusion technology. The optimal mixture was made with formulations of better chemical computation, the mixture containing 28.8% pearl quinoa, 9.25% cañihua, 5.00% barley, 6.00% bean, 3.00% corn, 8.00% soybeans, 29.50% being favored of sugar, 8.00% of vegetable oil, 0.20% of essence, 2.00% of tricalcium phosphate and 0.25% of vitamins. The mixture was subjected to the extrusion cooking process using 15% humidity, 180° C temperature and 457 rpm, obtaining a gelatinization index 98.30% considering a good cooking index of the instant mixture. The functional characteristics of the selected instant mixture were evaluated obtaining, absorption index with 6.1%, solubility index with 19.8%, expansion index with 1.64 cm and nitrogen solubility index with 35%. The quality of the in...
10
artículo
Publicado 2019
Enlace
Enlace
The research aims to formulate a food mixture based on quinoa, cañihua, barley, corn, beans and soy using cooking-extrusion technology. The optimal mixture was made with formulations of better chemical computation, the mixture containing 28.8% pearl quinoa, 9.25% cañihua, 5.00% barley, 6.00% bean, 3.00% corn, 8.00% soybeans, 29.50% being favored of sugar, 8.00% of vegetable oil, 0.20% of essence, 2.00% of tricalcium phosphate and 0.25% of vitamins. The mixture was subjected to the extrusion cooking process using 15% humidity, 180° C temperature and 457 rpm, obtaining a gelatinization index 98.30% considering a good cooking index of the instant mixture. The functional characteristics of the selected instant mixture were evaluated obtaining, absorption index with 6.1%, solubility index with 19.8%, expansion index with 1.64 cm and nitrogen solubility index with 35%. The quality of the in...
11
artículo
Publicado 2019
Enlace
Enlace
The research aims to formulate a food mixture based on quinoa, cañihua, barley, corn, beans and soy using cooking-extrusion technology. The optimal mixture was made with formulations of better chemical computation, the mixture containing 28.8% pearl quinoa, 9.25% cañihua, 5.00% barley, 6.00% bean, 3.00% corn, 8.00% soybeans, 29.50% being favored of sugar, 8.00% of vegetable oil, 0.20% of essence, 2.00% of tricalcium phosphate and 0.25% of vitamins. The mixture was subjected to the extrusion cooking process using 15% humidity, 180° C temperature and 457 rpm, obtaining a gelatinization index 98.30% considering a good cooking index of the instant mixture. The functional characteristics of the selected instant mixture were evaluated obtaining, absorption index with 6.1%, solubility index with 19.8%, expansion index with 1.64 cm and nitrogen solubility index with 35%. The quality of the in...
12
artículo
Publicado 2019
Enlace
Enlace
The research aims to formulate a food mixture based on quinoa, cañihua, barley, corn, beans and soy using cooking-extrusion technology. The optimal mixture was made with formulations of better chemical computation, the mixture containing 28.8% pearl quinoa, 9.25% cañihua, 5.00% barley, 6.00% bean, 3.00% corn, 8.00% soybeans, 29.50% being favored of sugar, 8.00% of vegetable oil, 0.20% of essence, 2.00% of tricalcium phosphate and 0.25% of vitamins. The mixture was subjected to the extrusion cooking process using 15% humidity, 180° C temperature and 457 rpm, obtaining a gelatinization index 98.30% considering a good cooking index of the instant mixture. The functional characteristics of the selected instant mixture were evaluated obtaining, absorption index with 6.1%, solubility index with 19.8%, expansion index with 1.64 cm and nitrogen solubility index with 35%. The quality of the in...
13
artículo
Publicado 2020
Enlace
Enlace
The respiratory metabolism of fruits is affected by multiple internal (product) and external (environmental) factors that often interact with each other. Among the external factors that have the greatest influence on respiration are temperature, air composition, moisture content and illumination. The aim of this paper is to elucidate the influence of environmental factors on the respiration rate of peach fruits based on transfer models obtained by dynamic regression modelling (ARIMAX). The fitted ARIMA models met the criteria of parsimony and white noise in residuals. The estimated coefficients of each model were statistically significant under the Durbin-Watson (DW), Akaike (AIC) and Schwarz (SBC) criteria. Transfer functions revealed 0.15% and 1.9% increase, and 0.001% decrease in the respiration rate of the peach fruit for each unit of change in temperature, relative humidity and illu...
14
artículo
Publicado 2020
Enlace
Enlace
The respiratory metabolism of fruits is affected by multiple internal (product) and external (environmental) factors that often interact with each other. Among the external factors that have the greatest influence on respiration are temperature, air composition, moisture content and illumination. The aim of this paper is to elucidate the influence of environmental factors on the respiration rate of peach fruits based on transfer models obtained by dynamic regression modelling (ARIMAX). The fitted ARIMA models met the criteria of parsimony and white noise in residuals. The estimated coefficients of each model were statistically significant under the Durbin-Watson (DW), Akaike (AIC) and Schwarz (SBC) criteria. Transfer functions revealed 0.15% and 1.9% increase, and 0.001% decrease in the respiration rate of the peach fruit for each unit of change in temperature, relative humidity and illu...
15
artículo
Publicado 2020
Enlace
Enlace
The films can be obtained from renewable resources such as polysaccharides, proteins, and lipids. Potato starch is a polysaccharide found in abundance, low cost, biodegradable, edible, and can be obtained from agro-industrial waste. In the present study, biodegradable films were obtained from potato starch mixed with montmorillonite nanoclay (MMT) as crosslinking agent and glycerin as a plasticizer; and thus characterize properties such as: permeability to water vapor, solubility, thickness, functional groups by FTIR, analysis of the morphology by scanning electron microscopy (SEM), and mechanical properties. 9 mixtures combining different proportions of glycerol (1, 1.5 and 2 ml) with montmorillonite nanoclay (MMT) (0, 0.03 and 0.05 g) were prepared.
16
artículo
Publicado 2020
Enlace
Enlace
The study of the complex ultracellular processes of nucleic acids is a subject debated as a scientific argument in favor of Intelligent Design (ID). The objective of this work was to analyze some molecular processes of the nucleic acids that suggest the confirmation of the ID theory, through the technique of documentary content analysis. First, the chemical structure of DNA and the combination of nitrogenous bases reflects that the genetic information of each created being is an original mixture of nitrogenous bases that makes each individual unique in the history of the world. Secondly, by studying the processes of DNA replication and repair, it is observed that each enzyme fulfills its function in a coordinated and organized manner avoiding the occurrence of errors and, should this occur, the cell has had very fine repair mechanisms. that correct these alterations in the best possible ...
17
artículo
Publicado 2020
Enlace
Enlace
The study of the complex ultracellular processes of nucleic acids is a subject debated as a scientific argument in favor of Intelligent Design (ID). The objective of this work was to analyze some molecular processes of the nucleic acids that suggest the confirmation of the ID theory, through the technique of documentary content analysis. First, the chemical structure of DNA and the combination of nitrogenous bases reflects that the genetic information of each created being is an original mixture of nitrogenous bases that makes each individual unique in the history of the world. Secondly, by studying the processes of DNA replication and repair, it is observed that each enzyme fulfills its function in a coordinated and organized manner avoiding the occurrence of errors and, should this occur, the cell has had very fine repair mechanisms. that correct these alterations in the best possible ...
18
artículo
In response to the growing interest in non-dairy functional foods, this study aimed to develop a symbiotic beverage based on water kefir fermented with Andean plant-based substrates: black mashua, yacon, and spirulina. An extreme vertices mixture design was applied, maintaining constant levels of 12 % sucrose and 15 % kefir grains, to evaluate eight formulations. The variables analyzed included physicochemical parameters (pH, °Brix, titratable acidity), microbiological indicators (lactic acid bacteria count), and sensory attributes (odor, color, and taste). The results showed a significant decrease in pH (from 6.26 to 2.98) and °Brix (from 15 to 7.0), along with an increase in titratable acidity (up to 1.10 %) and lactic acid bacteria counts exceeding 8 log₁₀ CFU/mL on day 7. Sensory evaluation revealed high acceptability in treatments containing black mashua (odor: 4.6; taste: 4.8...
19
artículo
Publicado 2025
Enlace
Enlace
Objective: The objective of this study was to demonstrate whether a gel formulation developed with collagen extracted from fish scales is stable, functional, and safe for cosmetic applications. Material and Methods: A gel formulation derived from fish scales was developed, and physicochemical parameters (pH, viscosity, protein, lipid, carbohydrate, ash, and moisture content) were analyzed following AOAC (Association of Official Analytical Chemists) methods. Additionally, microbiological aspects (mesophilic bacteria, coliforms, molds, yeasts, and Salmonella spp.) were evaluated, and a sensory test was conducted with consumers. Results: The results showed a pH of 6.8 and a viscosity of 150 cP, which are suitable for stability. Protein content was 25%, carbohydrates reached 60.2%, and lipids were 5.5%. No Salmonella spp. was detected, and other microbiological parameters remained within per...
20
tesis de maestría
Publicado 2021
Enlace
Enlace
New pH- and thermo-responsive hydrogels (HG) were synthesized by free radical polymerization of N-isopropylacrylamide and a macromonomer, which was a hydrolyzed random copolymer of 2-carboxyethyl- and 2-methyl-2-oxazoline, using a bisacrylamide as crosslinker. The polymerization was carried out in a mixture of water and ethanol at room temperature and was initiated by ammonium peroxodisulfate. The HG showed conformational transitions with variation of temperature and/or pH-value and as a function of hydrogel composition. This property was shown macroscopically as hydrogel contraction or expansion. The HG structures were characterized by high-resolution magic angle spinning (HRMAS) NMR spectroscopy. The thermal properties, in particular the lower critical solution temperatures, were determined by temperature-dependent HRMAS NMR measurements and differential scanning calorimetry. The pH re...
