title: Nutritional Characteristics and Active Components in Liver from Wagyu×Qinchuan Cattle.
abstract: We investigated nutritional characteristics and active components in the liver of Wagyu×Qinchuan cattle and Qinchuan cattle produced in Shaanxi (China). We observed significant differences (p<0.05) in the proximate composition of protein, fat, carbohydrate, total energy, and glycogen. Wagyu×Qinchuan cattle liver showed higher (p<0.05) sodium, iron, zinc, and selenium concentrations than Qinchuan cattle liver. The amino acid composition of Wagyu×Qinchuan cattle liver was richer (p<0.05) in 13 types of amino acids, with the exception of Asp (10.06%), Val (5.86%), and Met (1.72%). Total essential amino acids accounted for almost half the composition (39.69%) in Wagyu×Qinchuan cattle liver. Wagyu×Qinchuan cattle liver had lower (p<0.05) levels of monounsaturated fatty acids (18.2%), but higher (p<0.05) levels of polyunsaturated fatty acids (35.11%), compared with Qinchuan cattle liver (23.29% and 28.11%, respectively). The thrombogenic index was higher in Qinchuan cattle liver (0.86) than in Wagyu×Qinchuan cattle liver (0.70), and the glutathione (38.0 mg/100g) and L-carnitine (2.12 μM/g) content was higher (p<0.05) in Wagyu×Qinchuan cattle liver than in Qinchuan cattle liver (29.8 mg/100g and 1.41 μM/g, respectively). According to the results obtained, the liver of Wagyu×Qinchuan cattle, which is insufficiently used, should be increasingly utilized to improve its commercial value.
authors.affiliation: Department of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
authors.forename: Ru-Ren
authors.initials: RR
authors.lastname: Li
authors.affiliation: Department of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
authors.forename: Qun-Li
authors.initials: QL
authors.lastname: Yu
authors.affiliation: Department of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Han
authors.affiliation: Shaanxi Kingbull Company Limited, Baoji 722300, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Cao
keywords: Wagyu×Qinchuan cattle; active components; liver; nutritional characteristics