de Araújo Sergiane A, Dos Santos Fernanda M, Ribeiro Rebeca D X, Barbosa Analívia M, de Andrade Ederson A, Virginio Júnior Gercino F, Dos Santos Neiri J A, da Silva Júnior Jarbas M, Pereira Elzânia S, Bezerra Leilson R, Oliveira Ronaldo Lopes
Pharmacy Department, Federal University of Bahia, Avenida Adhemar de Barros, 500, Salvador 40170110, Bahia, Brazil.
Animal Science Department, Federal University of Bahia, Avenida Adhemar de Barros, 500, Salvador 40170110, Bahia, Brazil.
Foods. 2022 Nov 23;11(23):3764. doi: 10.3390/foods11233764.
This study aims to evaluate the quality of salted sun-dried meat from young bulls (Nellore cattle) fed with a diet containing 0.0, 0.5, 1.0 and 1.5% of lauric acid in the total dry matter (DM). Thirty-two Nellore bulls with initial body weight of 368 ± 32 kg were used. A linear decrease (p < 0.05) in pH and protein content of the salted sun-dried meat was observed with the inclusion of lauric acid. The moisture, ash, lipid, collagen content, water-holding capacity, cooking loss, color indexes (L*, a*, b*, C*), and shear force were not affected. Lipid oxidation at 7 days of storage increased linearly in the salted sun-dried meat. Most of the fatty acid composition of the salted sun-dried meat from the semimembranosus muscle of young bulls was not influenced (p > 0.05) by the lauric acid inclusion in the bulls’ diet. However, there was a linear increase (p < 0.05) in the SFA lauric acid (C12:0), PUFAn-3 EPA (C20:5n − 3) and DHA (C22:6n − 3), and a quadratic increase in the PUFAn-6 arachidonic (C20:4n − 6) due to lauric acid addition from palm kernel oil in the diet. There was a liner increase (p < 0.05) in the total ∑PUFA, ∑n − 6, ∑n − 3 contents of salted sun-dried meat from the semimembranosus muscle of young bulls and the h:H health index of the level of lauric acid inclusion in bull’s diet. In contrast, the thrombogenicity health index (TI) and ∑n − 6:∑n − 3 ratio content in salted sun-dried meat from the semimembranosus muscle of young bulls presented a linear decrease (p < 0.05) due to lauric acid addition in the bulls’ diet. Lauric acid (C12:0) inclusion up to 1.5% in the diet of young Nellore bull improved the fatty acid composition of the salted sun-dried meat, increasing EPA, DHA, n − 6 and n − 3, TI, and h:H indexes, which are associated with a better lipid quality of meat products, and further improves tenderness at the highest concentration.
本研究旨在评估以总干物质(DM)中含有0.0%、0.5%、1.0%和1.5%月桂酸的日粮喂养的年轻公牛(内洛尔牛)腌制晒干肉的品质。使用了32头初始体重为368±32千克的内洛尔公牛。随着月桂酸的添加,腌制晒干肉的pH值和蛋白质含量呈线性下降(p<0.05)。水分、灰分、脂质、胶原蛋白含量、持水能力、烹饪损失、颜色指标(L*、a*、b*、C*)和剪切力均未受到影响。腌制晒干肉在储存7天时的脂质氧化呈线性增加。年轻公牛半膜肌腌制晒干肉的大部分脂肪酸组成不受公牛日粮中添加月桂酸的影响(p>0.05)。然而,由于日粮中添加了来自棕榈仁油的月桂酸,饱和脂肪酸月桂酸(C12:0)、多不饱和脂肪酸n-3二十碳五烯酸(EPA,C20:5n−3)和二十二碳六烯酸(DHA,C22:6n−3)呈线性增加(p<0.05),多不饱和脂肪酸n-6花生四烯酸(C20:4n−6)呈二次增加。年轻公牛半膜肌腌制晒干肉的总多不饱和脂肪酸(∑PUFA)、∑n−6、∑n−3含量以及公牛日粮中月桂酸添加水平的h:H健康指数呈线性增加(p<0.05)。相反,年轻公牛半膜肌腌制晒干肉中的血栓形成健康指数(TI)和∑n−6:∑n−3比率含量由于公牛日粮中添加月桂酸而呈线性下降(p<0.05)。在内洛尔年轻公牛的日粮中添加高达1.5%的月桂酸(C12:0)可改善腌制晒干肉的脂肪酸组成,增加EPA、DHA、n−6和n−3、TI以及h:H指数,这些与肉类产品更好的脂质质量相关,并且在最高浓度下还可进一步改善嫩度。