Open Access
Combined effect of high hydrostatic pressure, sous-vide cooking, and carvacrol on the quality of veal, plant-based, and hybrid patties during storage
(MDPI, 2023) Janardhanan, Rasmi; Olarte, Carmen; Sanz, Susana; Rota, Carmina; Beriain Apesteguía, María José; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
The effect of carvacrol added to patties stored at 4 ◦C for 14 days, previously pressurized and vacuum-cooked (HPP-SVCOOK), was investigated. Three formulations were prepared (veal, plant-based product, and hybrid product). An emulsion made with olive and linseed oils was added. The physicochemical and microbiological qualities were assessed. Microbial tests indicated negligible growth of spoilage organisms in treated patties. No significant effect of carvacrol on the microbial loads of patties was noticed. Sulfite-reducing clostridia and Enterobacteriaceae were absent in the treated patties, whereas, in the treated veal and hybrid samples, 3 and 2 units of log cfu/g reduction for lactic acid bacteria and molds and yeasts were noted, respectively. On day 7 of storage, veal patties exhibited a significant reduction (p < 0.05) in the L* (53.9–49.3), hardness (32.3–21.4 N), springiness (0.8–0.7 N), cohesiveness (0.49–0.46), and chewiness (12.2–7.1) and a hike in the a* value (5.3–9.4). No significant changes in L* (59.1–58.6), a* (8.57–8.61), hardness (11.6–10.6 N), or cohesiveness (0.27–0.26) were observed in plant-based patties over the storage times, whereas reductions in springiness (0.5–0.4), chewiness (1.9–1.3), and b* (26.6–29.1) were noted in them. In hybrid patties, the L* (53.9–52.5) and b* values (24.9–24.3) were consistent but had a significant decrease in a* value (5.9–3.5) along the days of storage under study. The texture parameters of the hybrid patties altered were similar to those of veal patties during the 14-day storage time. In all samples, pH decreased with storage time. HPP-SVCOOK was effective on rendering safe and shelf-stable, ready-to-eat patties regardless of their matrix formulation. The addition of carvacrol had limited effects on the textural qualities of the HPP-SVCOOK products. Future studies need to be undertaken to assess the treated patties’ consumer acceptability and sensory profile. The study provides the basis for the development of novel meat-based and plant-based products that are microbiologically safe, with minimum physicochemical alterations during storage.
Open Access
Extra-virgin olive oil enriched with lycopene: from industrial tomato by-products to consumer
(Wiley, 2024) Fernández Pan, Idoya; Horvitz Szoichet, Sandra Susana; Ibáñez Moya, Francisco C.; Arroqui Vidaurreta, Cristina; Beriain Apesteguía, María José; Virseda Chamorro, Paloma; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Lycopene is usually extracted from the by-product of the tomato industry using organic solvents (OS) in combination with a physical technique. An emerging physical technique is high-pressure processing (HPP). This study aims to find a method by applying a green solvent (edible vegetable oils) in an HPP-assisted solid-liquid extraction. Three dosages of tomato by-product (10%, 20%, and 40%, w/v) were tested using OS, sunflower oil (RSO), and extra-virgin olive oil (EVOO). Lycopene recovery increased with the ratio of by-product to oil, particularly when using EVOO. In another stage of the study, consumers evaluated EVOO that contained two doses of tomato by-product (10% and 20%, w/v). Consumers preferred the EVOO from 10% tomato by-product ratio over that with 20%. Additionally, 83.8% of consumers stated that enriched oil could be deemed beneficial for health. The proposed method considers the fundamental principles of the circular economy and practical industrial scenario to recover lycopene from tomato by-product.
Open Access
Comparison of high hydrostatic pressure processed plus sous-vide cooked meat-based, plant-based and hybrid patties according to fat replacement
(MDPI, 2022) Janardhanan, Rasmi; González Díez, Mikel; Ibáñez Moya, Francisco C.; Beriain Apesteguía, María José; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
The impact of high-pressure processing (HPP) alone and combined with sous-vide cooking (SVCOOK) on the physicochemical and sensory traits of patties from different fat and protein matrices was evaluated. Hydro-gelled and soya emulsions were tested in meat (M), hybrid (H) and plant-based (P) patties (six formulations). M patties with pork backfat were used as reference formulation. All samples were pressurized (350 MPa, 10 min) and the HPP + SVCOOK patties were subsequently vacuum-cooked (55 °C). Significant changes (p < 0.05) in physicochemical parameters were detected in HPP and HPP + SVCOOK samples. Hardness reached the maximum value (11.0 N) in HPP treated P patties with soya emulsion. The HPP + SVCOOK M patties with backfat recorded the highest hardness (29.9 N). Irrespective of the fat formulations, the sensory characteristics of the HPP and HPP + SVCOOK M patties showed a well differentiated profile compared to H and P patties. The highest intensities for fatness, flavor, chewiness and the lowest for friability were recorded in HPP + SVCOOK M patties with backfat. The differences in physicochemical and sensory parameters of HPP + SVCOOK patties were minimal. Successful fat replacement using either one of the soya or hydro-gelled emulsion could be conducted in HPP + SVCOOK patties.
Open Access
High-pressure processing and sous-vide cooking effects on physicochemical properties of meat-based, plant-based and hybrid patties
(Elsevier, 2023) Janardhanan, Rasmi; Huerta Leidenz, Nelson; Ibáñez Moya, Francisco C.; Beriain Apesteguía, María José; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Modern technologies such as high-hydrostatic pressure processing (HPP) and sous-vide cooking (SVCOOK) have not been fully assessed for improving the quality of veal patties. The effects of HPP alone or combined with SVCOOK technique on physicochemical characteristics of veal, plant-based, and hybrid patties were investigated. Samples of the different formulations were subjected to three pressures (350–600 MPa) for 5–15 min, followed by SVCOOK (55–65 ◦C for 15 min). The color of the HPP treated plant-based and hybrid patties tended to be of less reddish color tone and conformed more towards a yellowish shade. The dual technology treated hybrid patties were like veal patties in color and texture parameters, whereas the physicochemical parameters of plantbased patties were different from veal and hybrid patties. Conversely, the effect of HPP on hybrid patties was not comparable to veal patties. The dual (HPP–SVCOOK) technology has the potential to develop novel hybrid products with physicochemical characteristics comparable to those of veal-based patties.

Beriain Apesteguía, María José

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