FRRo - I+D+i - Artículos en Revistas

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

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Author: search.filters.author.Reinheimer, María AgustinaSubject: search.filters.subject.Tecnología de los alimentos

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Now showing 1 - 5 of 5
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    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.
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    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.
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    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.
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    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.
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    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 Agustina
    Purpose: 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.