Open Access
Use of oil mixture emulsion hydrogels as partial animal fat replacers in dry-fermented foal sausages
(Elsevier, 2022) Cittadini, Aurora; Domínguez, Rubén; Munekata, Paulo E. S.; Pateiro, Mirian; Sarriés Martínez, María Victoria; Lorenzo, José M.; Agronomía, Biotecnología y Alimentación; Agronomia, Bioteknologia eta Elikadura; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
This study aimed to evaluate the influence of partial replacement of animal fat by oil mixture emulsion hydrogels on the quality properties of dry-fermented foal sausages. Three batches were elaborated: control (CON) -100 % of pork fat; treatments 1 and 2 (T1 and T2)- 50 % of pork fat was replaced by oil mixture emulsions, tigernut (T1) or sesame oils (T2) blended with algal oil. Lipid reformulations reduced (P < 0.001) fat (36.91 % vs about 30 %, for CON and reformulated samples, respectively), and moisture contents (33.57 % vs about 28 %, for CON and reformulated samples, respectively), while darker sausages were obtained. These changes in the both, fat and moisture contents, have an important influence on the texture parameters, since reformulated samples presented higher values of hardness (283¿317 N) than control samples (152 N). Both oil emulsion hydrogels favored a decrease (P < 0.001) of saturated fatty acids (34.16 vs 30 g/100 g of fat), an increase (P < 0.001) of mono- (T1) and polyunsaturated (T2) fatty acids (depending on the batch), and an improvement of all health indices as omega-6/omega-3 (n-3/n-6) and polyunsaturated fatty acids/ saturated fatty acid ratios (PUFA/SFA), atherogenic (AI) and thrombogenic (TI) indices and hypocholesterolaemic/hypercholesterolaemic ratio (h/H). T2 seemed to reduce (P < 0.001) the lipid oxidation in the samples, while T1 presented the highest values. On the other hand, the terpenes and terpenoids were the most abundant volatile compounds (VOCs) found in all sausages, mainly due to the use of pepper as flavoring spice. Several differences were observed on the content of different individual VOCs (hydrocarbons, acids, alcohols, aldehydes, etc.) and also in the total VOCs content, due of both, differences in lipid oxidation processes (in accordance with TBARS values) and also the moisture and fat content of the samples. Nevertheless, consumer acceptability resulted to be unaffected (T1) or improved (T2) by the fat reformulation. Thus, overall results pointed out that the use of T2 emulsion hydrogel as a partial animal fat replacer could be a promising strategy to achieve healthier dry-cured foal sausages with high consumers¿ approval. © 2022 Elsevier Ltd
Open Access
Effect of breed and finishing diet on chemical composition and quality parameters of meat from Burguete and Jaca Navarra foals
(2022) Cittadini, Aurora; Sarriés Martínez, María Victoria; Domínguez, Rubén; Pateiro, Mirian; Lorenzo, José M.; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
The purpose of this study was to investigate the influence of breed, Jaca Navarra (JN) vs. Burguete (BU), and finishing diet, conventional concentrate and straw, diet 1 (D1), vs. silage and organic feed, diet 2 (D2), on chemical composition and quality parameters of the longissimus thoracis et lumborum muscle from forty-six foals. Animals were reared under a semi-extensive system and slaughtered at a mean age of 21 months. The results reported that both studied effects had a significant (p < 0.05) impact on meat quality; however, it was the breed to strongly influence the majority of the parameters evaluated. In particular, BU foals reported the highest amounts of intramuscular fat, positively affecting the meat properties of marbling and texture traits. Moreover, this group presented higher values for L* and b* and the lowest cholesterol contents. As regards the diet, D1 increased the fat content in foals supplemented with this diet, improving the organoleptic properties of this group. On the other hand, the combination of silage and organic feed (D2) had an opposite trend. Thus, both BU and D1 groups presented enhanced quality attributes, such as marbling, juiciness and reduced hardness, which are some of the most demanded by meat consumers.
Open Access
Efecto de la maduración en la conservación de la carne de potro
(Asociación Interprofesional para el Desarrollo Agrario, 2018) Ruiz Darbonnens, Marta; Beriain Apesteguía, María José; Insausti Barrenetxea, Kizkitza; Cantalejo Díez, María Jesús; Sarriés Martínez, María Victoria; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
Para el desarrollo del presente estudio, se investigó el efecto de la maduración del músculo Longissimus dorsi (LD), por un lado como pieza entera y por otro lado tras el fileteado, sobre los parámetros de calidad de la carne de potro. Se emplearon músculos madurados 24 horas en la canal procedentes de ocho potros quincenos de raza Burguete. Cada lomo se dividió en dos partes iguales. Una parte no fue madurada, y la segunda fue madurada 7 días. Posteriormente, ambas partes fueron fileteadas y los filetes fueron conservados durante 9 días en bandejas cubiertas con film permeable al oxígeno en un expositor. No hubo interacción entre la maduración en el lomo y el tiempo de conservación posterior del filete. Los valores de textura fueron bajos desde el comienzo siendo considerada 'tierna'. Debido a la maduración, el enrojecimiento (a*) fue intenso y el contenido de metamioglobina fue bajo, pero la oxidación de los lípidos y la degradación del olor aumentaron. Cuando la maduración se llevó a cabo en filete, el tiempo de conservación y la atmósfera rica en oxígeno hicieron que la carne de potro se deteriorara rápidamente. La oxidación de los lípidos y la mioglobina y la degradación del color aumentaron día a día. Además, cuanto más tiempo estuvo expuesta la carne al oxígeno, peores fueron las valoraciones de color y olor sensorial de la carne de potro. El tiempo de conservación de la carne de potro fue inferior a 3 días, siendo el color característico el factor limitante.
Open Access
Study of Pansalt® or Laminaria ochroleuca seaweed powder as potential NaCl replacers in dry-cured foal "cecina"
(Elsevier, 2023) Cittadini, Aurora; Domínguez, Rubén; Sarriés Martínez, María Victoria; Pateiro, Mirian; Lorenzo, José M.; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
This study aimed to evaluate the effect of the total or partial replacement of NaCl by a commercial low-salt mixture Pansalt® (T1) or Kombu (L. ochroleuca) seaweed powder (T2), respectively, on the quality properties of dry-cured foal “cecina”. Salt reformulation unaffected fat percentages, decreased (P < 0.001) moisture and ash contents, while protein amounts increased (P < 0.001) in the T2 batch. Considering the physicochemical variables, any significant differences were observed among batches, except for a*, water activity, and springiness values. T1 and T2 samples presented a significant (P < 0.001) sodium decrease of 39% and 48%, respectively, as well as, potassium and magnesium increase (P < 0.001). In addition, the seaweed improved (P < 0.001) calcium, iron, phosphorus, and zinc contents. All batches showed similar lipid profiles and the nutritional indices were in line with the health recommendations. NaCl replacement increased the proteolysis, causing the increment (P < 0.001) of the free amino acids total contents, especially in T2 samples. Changes were also detected in the aromatic profile of our samples, where lipid-derived compounds predominated in the CON batches, while substances originating from carbohydrate fermentation and amino acid breakdown were prevalent in reformulated samples, particularly in T2. In addition, the salting treatments did not affect the sensory profile, except for saltiness (T2). Hence, data indicated that the employ of these potential NaCl alternatives, in particular T2 formulation, represents a favorable approach to achieving equine “cecinas” with an enhanced mineral and healthier profile, without altering most of the sensorial properties.

Sarriés Martínez, María Victoria

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