FRRo - I+D+i - Artículos en Revistas

Permanent URI for this collectionhttp://48.217.138.120/handle/20.500.12272/1297

Browse

Author: search.filters.author.Godoy, EzequielHas files: Yes

Search Results

Now showing 1 - 10 of 21
  • Thumbnail Image
    Item
    Effects of spray drying and lactic acid fermentation on the technological characteristics of yellow and green pea (Pisum sativum L.) Protein products
    (Agricultural and Food Science, 2024) Guraya, María Ángeles; Iguti, Antonia Miwa; De Ros Triboli, Edison Paulo; Ribeiro, Eliana Paula; Accoroni, Cecilia; Espósito, María Andrea; Torresi, Pablo Antonio; Reinheimer, María Agustina; Godoy, Ezequiel
    This research evaluates a pH-shifting and drying process for producing powdered protein products from yellow and green peas (Pisum sativum L.), aiming to enhance their technological characteristics. In the precipitation stage, lactic acid bacteria (Lactobacillus Plantarum and Lactobacillus Lactis) served as a generally recognized safe precipitant agent. The fine fraction (<150 µm) from yellow and green peas milling acted as an encapsulant/adjuvant agent in the drying stage. Results showed high process productivity (0.41–0.51 kg protein product/kg pea flour) and low specific water consumption (52.58–62.39 kg water/kg protein product) with this approach. Variations in processing parameters affected protein content, yield, and specific water consumption. Significant differences were observed in wetting time, water activity, flowability (Carr index), cohesiveness (Hausner index), density, particle size, and colour of the protein products, depending on the processing alternatives. This flexibility allows tailoring the properties of the powdered protein product for various food technology applications.
  • Thumbnail Image
    Item
    Evaluación de la composición y producción de concentrados proteicos de diferentes variedades de arveja amarillas y verdes (Pisum sativum L.)
    (INTA, 2024) Accoroni, Cecilia; Espósito, María Andrea; Magnano, Luciana; Guraya, María Ángeles; Godoy, Ezequiel; Reinheimer, María A.
    El aumento constante en los últimos años de la población mundial provocó la búsqueda de fuentes proteicas vegetales alternativos a las proteínas animales. La arveja es una excelente alternativa, en su formato de concentrados y aislados proteicos, como ingredientes en la industria alimentaria, garantizando una alimentación suficiente y sostenible para vegetarianos, veganos y celíacos. El objetivo de este trabajo fue evaluar la potencialidad comercial de una variedad comercial y dos variedades precomerciales del programa de mejoramiento INTA-FCA UNR (Primogenita, B320 y B313, respectivamente) en comparación con seis variedades comerciales, (Reussite, Viper, Kingfisher, Aragorn, Meadow y Astronaute) contemplando la composición de las harinas crudas y la solubilidad de las proteínas. Se encontró que el contenido proteico fue superior en los tres años de evaluación para Primogénita, Viper (ambas de semilla verde) y B320, Reussite y Meadow (de semillas amarillas). Además, que tanto el contenido proteico como solubilidad resultaron ser superiores en las harinas crudas provenientes de variedades verdes, lo cual facilita la disponibilidad de proteínas totales a ser extraídas durante la producción de aislados/concentrados proteicos. Respecto a la solubilidad, se observan valores superiores a 65 % indicando disponibilidad de proteínas extraíbles por no sufrir desnaturalización durante su acopio y molienda. Se detectaron valores de actividad ureásica inferiores a 0,300. Esto indica que no es necesario aplicar tratamiento térmico además de una posible disminución de la proteína soluble. Para rendimiento de proteína, Primogénita tuvo los mayores rendimientos (>50%) en los tres años. Esta variedad resulta ser promisoria para la producción de concentrados/aislados proteicos ya que tiene un mayor contenido de proteína y disponibilidad para ser extraídas con un alto rendimiento de producto. Estos resultados abonan al programa en pro de obtener variedades con buen comportamiento agronómico y producción de concentrados proteicos potenciando el agregado de valor en la industria alimenticia.
  • Thumbnail Image
    Item
    Reformulation of snacks offered to children and adolescents at school kiosks: is this strategy enough or just the tip of the iceberg?
    (2024-08-29) Lingiardi, Nadia; Arribas, Alberto; Arriola, Ileana; Godoy, Ezequiel; Reinheimer, María Agustina
    Several studies have reported high overweight and obesity incidence among schoolchildren and adolescents, who mostly consume packaged snacks with critical nutrients exceeding the criteria of international profiling systems during school breaks. Then, the objectives of this work were to reformulate a snack consumed by Argentinian schoolchildren and adolescents (aged 6-13 years) to decrease its critical nutrient contents and to determine if this product would still be accepted. Chocolate chip vanilla cookies were selected for reformulation considering each recommended cut-off point for critical nutrients, since a prohibition of products with warning octagons being offered at schools would come into effect in Argentina. These cookies received good acceptability scores (above 3 of 5 points) and would be consumed by 8 of 10 schoolchildren in a sample of 200 participants. These findings underscore the importance of legislation promoting awareness of healthier eating habits and increasing the availability of healthier food 30 options in schools.
  • Thumbnail Image
    Item
    Enhancing protein extraction from soybean expeller: exploring the impact of precipitating agents and flour-to-water ratios on functional properties
    (2024-07) Andrín, María Nieves; Guraya, María Ángeles; Accoroni, Cecilia; Torresi, Pablo Antonio; Godoy, Ezequiel; Reinheimer, María Agustina
    This study investigates sustainable methods for producing protein from soybean expeller via pH-shifting processes, aiming to reduce water usage in alkaline extraction by adjusting solid23 to-liquid ratios per cycle and employing isoelectric precipitants like lactic acid and lactic acid bacteria (Lactiplantibacillus plantarum and Lactococcus Lactis) to enhance functional and antioxidant properties over a wide pH range. Results indicate that the most efficient approach involves three 1:10 (w/v) extraction cycles with lactic acid bacteria as precipitants, demonstrating high productivity and low specific water consumption. Protein content and recovery yield showed no significant differences compared to alternatives with higher water consumption or less eco-friendly precipitants. Despite lower solubility, protein products precipitated with lactic acid bacteria formed stable emulsions, exhibiting superior free radical scavenging activity.
  • Thumbnail Image
    Item
    Protein recovery from yellow peas (Pisum sativum L.) for enhanced processing sustainability and functional properties.
    (2024) Guraya, María Ángeles; Andrín, María Nieves; Batres, Rocío; Torresi, Pablo Antonio; Godoy, Ezequiel; Reinheimer, María Agustina
    This research focuses on sustainable protein recovery methods from a new yellow pea variety by examining alternative pH-shifting processes. The study focuses on reducing water consumption during alkaline extraction by adjusting solid-liquid ratios, and evaluating the impact of various isoelectric precipitants, including lactic acid and lactic acid bacteria (Lactobacillus plantarum and Lactobacillus lactis), on the functional and antioxidant properties of products across a wide range of pH values. It was here found that the process alternative with three 1:10 (w/v) extraction cycles and lactic acid bacteria as precipitant agent achieved high process productivity (0.36 kg protein product/kg pea flour) and low specific water consumption (94.9 kg water/kg protein product). No significant differences were observed in protein content and yield when compared to other flour-water ratios with higher water consumption or less eco-friendly precipitants. Products precipitated with lactic acid bacteria formed stable emulsions even at the isoelectric point, exhibited superior free radical scavenging activity, although solubility and water holding capacity were lower, and no differences were noted in oil holding capacity, foaming capacity, and foam stability.
  • Thumbnail Image
    Item
    Economic evaluation of protein recovery process from Argentinian soybean extruded-expelled meals.
    (2022) Accoroni, Cecilia; Godoy, Ezequiel; Reinheimer, María Agustina
    Soybean extruded-expelled (EE) meals are the byproduct of the soybean oil extraction process commonly used by small and medium- sized Argentinean companies. In this study, the economic feasibility of protein concentrate production from soybean EE meals was evaluated. A processing daily capacity of 18 ton of EE meals was considered, resulting in an annual production of 1,500 ton of protein concentrate. The proposed methodology considered a pH change process consisting of 3 cycles of alkaline extraction at 60 ºC followed by isoelectric precipitation at low temperature using hydrochloric acid, which resulted in a final product with a protein content of 75 % (db) and a productivity of 0.28 kg product/kg soybean EE meals. To analyze a practical case, proposed production was carried out as an extension of a typical medium-sized soybean extrusion- expelling plant. As a result, the necessary capital investment was estimated to be US$2.7 million. Additional financial performance indicators were computed, including net present value and internal rate of return, and it was concluded that the proposal to obtain a protein concentrate from soybean EE meals was economically viable on an industrial scale if sale prices are above 2,267 US$/ton.
  • Thumbnail Image
    Item
    Diseño de una actividad de aprendizaje interdisciplinar en red como propuesta para desarrollar las competencias de resolución de problemas, trabajo en equipo y comunicación efectiva.
    (2021) Godoy, Ezequiel; Fernández, Carina; Méndez, Claudia M.; Romero, Mara C.; Villegas, Noelia K.
    La implementación de una educación universitaria basada en competencias requiere de estrategias de enseñanza y aprendizaje innovadoras que promuevan la formación articulada e interdisciplinaria de los estudiantes. El objetivo del trabajo es presentar una propuesta de aprendizaje colaborativo en red de estudiantes universitarios de carreras de ingeniería para el desarrollo de sus competencias de resolución de problemas, trabajo en equipo y comunicación efectiva. A los efectos, se describe la actividad de aprendizaje basado en problemas propuesta, incluyendo su contextualización, la estrategia de implementación, los recursos necesarios y los instrumentos de evaluación de la misma. Asimismo, se detallan dos casos de estudio en que se propone implementar dicha propuesta, abarcando carreras de ingeniería dictadas en cuatro universidades argentinas. Se espera que esta propuesta de aprendizaje colaborativo provea un encuadre para experiencias educativas interdisciplinares similares, orientadas al desarrollo de las competencias que los estudiantes universitarios necesitarán en su futura vida profesional.
  • Thumbnail Image
    Item
    Análisis de la molienda de expeller de soja evaluando la performance de diferentes tipos de molinos.
    (2017) D’Emanuele Ares, Carolina; Accoroni, Cecilia; Ferigutti, Leonardo; Godoy, Ezequiel; Reinheimer, María Agustina
    El objetivo del presente trabajo es analizar la performance del proceso de molienda y tamizado de expeller de soja, subproducto de la extracción de aceite por el método de extrusado-prensado, para su posterior utilización en la obtención de productos proteicos. La molienda se realiza con tres molinos diferentes: de bolas (impacto), de rodillos (cizalla y compresión) y de cuchillas (cizalla), bajo diferentes condiciones de operación. El análisis de tamizado se realiza utilizando la serie de tamices ASTM Nº 5, 6, 10, 12, 25, 30 y ciego. Los productos obtenidos se clasifican en finos, medios, y gruesos, analizándose así los rendimientos de cada fracción en cada molino. Al ser la fracción de interés la correspondiente a las partículas de tamaño medio, se concluye que los molinos de cuchillas y de rodillos son mas adecuados debido a que se alcanzan rendimientos superiores al 55% cuando se los opera con una sola pasada. Asimismo, se calculan y reportan las energías especıficas desarrolladas en las moliendas con la Ley de Bond para exponer una comparativa.
  • Thumbnail Image
    Item
    Agregado de valor a expeller de soja.
    (2019-12) Godoy, Ezequiel; Llopart, Emilce; Morselini, Santiago; Mijoevich, Ayelén; Romero, María del Pilar; Aimaretti, Nora; Reinheimer, María Agustina
    El presente trabajo se enfoca en la extracción acuosa de proteínas a partir de expeller de soja y su posterior precipitación, así como en el análisis de los efluentes sólidos resultantes de este proceso a fines de evaluar su potencial valorización considerando principalmente el contenido de fibra dietaria. Para esto, se evaluaron y caracterizaron muestras de expeller provistas por PyMES de la región, que fueron sometidas al proceso de recuperación de proteínas y fibras bajo un amplio rango de condiciones operativas. Los resultados obtenidos fueron sometidos a análisis de varianza, y permiten detectar potenciales alternativas de procesamiento para la generación de productos de mayor valor agregado.
  • Thumbnail Image
    Item
    Experimental data acquisition and mathematical model for soluble protein extraction from Argentinian extruded expeller soybean meal
    (2019-06) Accoroni, Cecilia; Godoy, Ezequiel; Reinheimer, María Agustina
    Extruded expeller soybean meal is a byproduct of the soybean oil extraction, which is frequently used in Argentina by animal feed millers. In this work, the soluble protein extraction stage is studied as the first step of a challenge project in order to obtain a soy protein product from this byproduct. Extruded expeller (EE) meals from 4 different Argentinian processing plants were used to obtain experimental data sets, using 1 to 3 consecutive extraction cycles operating at temperatures from 55 to 65ºC. Firstly, 16 data sets were used to estimate the values of the distribution constant and the diffusivity of proteins within the particle, both as function of the extraction temperature. The remaining 25 data sets were used for validation purposes. Extraction yields were analyzed considering the impact of the operating conditions, while a good agreement between experimental and predicted extraction yields was achieved as the reported statistical parameters indicate.