2026-04-17T04:24:27Zhttps://recercat.cat/oai/request
oai:recercat.cat:20.500.12327/28242025-10-22T11:16:45Zcom_2072_4428com_2072_4427col_2072_487898
RECERCAT author Llauger, Mar author Guerrero, Luis author Arnau, Jacint author Morera, Afra author Wakamatsu, Jun-ichi author Lorenzo, José M. author Bou, Ricard other Indústries Alimentàries group Funcionalitat i Seguretat Alimentària group Qualitat i Tecnologia Alimentària 2025-10-22T11:16:44Z 2025-10-22T11:16:44Z 2024-02-09 Llauger, Mar, Luis Guerrero, Jacint Arnau, Afra Morera, Jun-ichi Wakamatsu, José M. Lorenzo, and Ricard Bou. 2024. “Zinc Protoporphyrin-Rich pork liver homogenates as coloring ingredients in Nitrite-Free liver pâtés”. Foods 13(4): 533. doi:10.3390/foods13040533. 2304-8158 http://hdl.handle.net/20.500.12327/2824 https://doi.org/10.3390/foods13040533 This study aimed to investigate the coloring ingredient potential of liver homogenates that form Zn protoporphyrin (ZnPP), a natural red pigment, after anaerobic incubation. Liver homogenates were used to develop nitrite-free sterile pork liver pâtés. These homogenates were applied in the formulation of pâtés directly or after centrifugation to obtain a pellet that was highly concentrated in ZnPP. Both the whole homogenate and its insoluble fraction were adjusted to pH 7.5 before their use in the formulation of pâtés with and without antioxidant (0.5% ascorbate plus 0.1% tocopherol) addition. Pâtés formulated with the whole homogenate showed color and texture characteristics that were similar to those of the positive control with nitrite. However, high levels of the insoluble fraction also led to pâtés with improved color characteristics but with a two-fold softened texture. Therefore, the form and amount of ZnPP added played roles in the final appearance of the product. The ZnPP pigment was more stable than heme in the sterilization treatment, and antioxidant addition proved to be unnecessary. The ZnPP-rich ingredients allowed for the preparation of nitrite-free cooked liver pâtés with a stable red color and could thus be potentially applied in other uncured cooked meat products. eng Attribution 4.0 International Zinc Protoporphyrin-Rich Pork Liver Homogenates as Coloring Ingredients in Nitrite-Free Liver Pâtés info:eu-repo/semantics/article