FRRo - I+D+i - Artículos en Revistas
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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, EzequielThis 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.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.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 AgustinaSeveral 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.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 AgustinaThis 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.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 AgustinaThis 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.Item Economic evaluation of protein recovery process from Argentinian soybean extruded-expelled meals.(2022) Accoroni, Cecilia; Godoy, Ezequiel; Reinheimer, María AgustinaSoybean 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.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.Item Novel nutritionally improved snacks for school-aged children: formulation, characterization, and acceptability.(2022-04) Lingiardi, Nadia; Godoy, Ezequiel; Arriola, Ileana; Cabreriso, María Soledad; Accoroni, Cecilia; Balzarini, María Florencia; Arribas, Alberto; Reinheimer, María AgustinaPurpose: This study aimed to formulate multiple nutritionally improved snacks intended for school-aged children according to international nutritional goals: Vanilla cookies (VC), Bay biscuits (BB), Cheese crackers (CC), and Tomato muffins (TM). Design/methodology/approach: The reformulation targets implied incorporating alternative flours and milk powder, and reducing the sugar and sodium contents, with respect to the usually consumed control products. These products were subjected to proximate composition, colour, and sensory profile analyses. Their overall acceptability was assessed by school-aged children whose nutritional status was also evaluated. Findings: Significant increments in relevant nutrients were observed in the composition of snacks: fibre (p=0.01 for VC, p<0.01 for BB and CC), proteins (p<0.01 for all snacks), and calcium (p<0.01 for all snacks). Average sodium reductions of 1.5 % and 3.7 % were achieved for CC and TM. During formulation, added sugar was reduced by 15.5 % and 23.5 % for VC and BB. All snacks were found to be acceptable in terms of appearance, texture, flavour, and overall acceptability by the participants, and VC, BB, and CC were ready for their effective implementation as part of school meals. Originality/value: Comprehensive policies have become necessary to combat malnutrition, mainly overweight and obesity. The incorporation of nutritionally improved snacks in school environments is one of several strategies for promoting healthier lifestyles among children, including educational programs, workshops, and food assistance.Item Evaluation of solar thermal energy capture and storage alternatives for indirect steam generation: a case study.(2023-03-26) Zoratti, G.; Mores, Patricia Liliana; Godoy, EzequielThis study analyses the integration of a solar thermal plant for indirect steam generation in a typical industrial process with thermal energy requirements. Solar irradiation is computed using a validated predictive model in Santa Fe province, Argentina. Three configurations are proposed, consisting of parabolic trough collectors and thermal storage tanks. Performance indicators, such as generated energy, resulting solar fraction (the fraction of the industrial process' thermal requirements met by solar energy), and necessary solar field area, are evaluated for each configuration. A specific energy map is generated, showing the solar generation potential at each location. For required solar fractions of 20-25%, incorporating a thermal storage system does not provide any benefits as the solar plant does not produce enough energy to contribute to the industrial process during winter months. For required solar fractions of 30-35%, the resulting solar fraction can be increased to 42-45% with additional capture area and thermal storage capacity. For required solar fractions of 37-40%, the thermal storage improves the efficiency of the solar plant, resulting in a solar fraction of 50-60%, allowing the industrial process to receive energy for at least 6 hours a day throughout the year. It is concluded that these configurations are suitable for providing a portion of the industrial process' thermal requirements.Item Performance evaluation of protein recovery from Argentinian soybean extruded-expelled 2 meals under different operating conditions.(2020-06) Accoroni, Cecilia; Godoy, Ezequiel; Reinheimer, María AgustinaThe soybean extruded-expelled (EE) meals are the byproduct of the process commonly used by small or medium-sized Argentinian companies for obtaining soy oil. In this work, the performance of the pH-shifting process for obtaining a protein product from the EE meals was evaluated as a strategy for on-site value-adding. The EE meals were subjected to the proposed pH-shifting process under different operating parameters at the alkaline extraction stage (2 and 3 cycles at 55, 60 and 65 ºC with and without sodium sulfite) and isoelectric precipitation stage (0 ºC and 20 ºC with hydrochloric and phosphoric acids), which constitute the controlling steps in an industrial scaling of the process. The pH-shifting process consisting of 3 alkaline extraction cycles at 60 ºC followed by isoelectric precipitation at low temperature using hydrochloric acid was found to be well suited for obtaining a final product with a protein content upwards of 75 %.