Dipartimento di Scienze Economico-Estimative e degli Alimenti, Sezione di Chimica Bromatologica, Biochimica, Fisiologia e Nutrizione, Università degli Studi di Perugia, Perugia, Italy.
J Sci Food Agric. 2012 Mar 15;92(4):952-9. doi: 10.1002/jsfa.4676. Epub 2011 Oct 14.
Rabbit meat has excellent nutritive properties. The purpose of this study was to characterize rabbit meat and offal; in particular, the lipid fraction was studied in order to evaluate total and positional fatty acid (FA) compositions of triacylglycerol (TAG) and phosphatidylcholine (PC) fractions. Eight samples of weaned and eight of fattened rabbits were considered.
Fattened rabbit meat contained slightly higher protein percentage content (P < 0.05) in comparison to weaned (20.1% versus 18.0%). Calcium content was higher in meat than in offal, unlike sodium, iron, zinc, manganese and copper. The cholesterol content in offal was much higher than in meat. FA profiles of total lipid showed a high percentage of unsaturated fatty acids and an n-6/n-3 ratio of 10.3 for fattened rabbit meat. Stereospecific analysis of TAG and PC was carried out on an eight-sample pool of each meat and offal from weaned and fattened rabbits. In all samples the sn-2-position was prevalently esterified with oleic and linoleic acids in TAG, with polyunsaturated fatty acids in PC.
Lipids from rabbit meat presented higher content of monounsaturated FA and lower n-6/n-3 ratio in comparison to offal, which was characterized by higher cholesterol and mineral levels.
兔肉具有优异的营养价值。本研究旨在对兔肉及其内脏进行特征描述，特别是对脂质部分进行研究，以评估三酰基甘油（TAG）和磷脂酰胆碱（PC）部分的总脂肪酸（FA）和位置脂肪酸组成。共考虑了 8 个断奶兔样本和 8 个育肥兔样本。
育肥兔肉的蛋白质百分比含量略高于断奶兔（20.1%对 18.0%）（P<0.05）。与钠、铁、锌、锰和铜不同，钙在肉中的含量高于内脏。内脏中的胆固醇含量远高于肉。总脂质的 FA 图谱显示，育肥兔肉的不饱和脂肪酸百分比很高，n-6/n-3 比值为 10.3。对断奶和育肥兔的每一种肉和内脏的 8 个样本混合池进行了 TAG 和 PC 的立体特异性分析。在所有样本中，sn-2 位都优先与 TAG 中的油酸和亚油酸以及 PC 中的多不饱和脂肪酸酯化。
与内脏相比，兔肉中的脂质具有更高的单不饱和脂肪酸含量和更低的 n-6/n-3 比值，而内脏则具有更高的胆固醇和矿物质水平。
