Abstract
In this study, fifty-four minerals were simultaneously quantified using inductively coupled plasma mass spectrometry. This study represents the most comprehensive profile of elements ever studied in chicken samples. The effects of age, gender and meat cut on the elements in Taihe black-boned silky fowl muscles were investigated. Principal component analysis of the data indicated that the leg and breast meat samples were able to be clearly separated from each other and that the contents of fourteen elements (23Na, 24Mg, 39K, 31P, 43Ca, 44Ca, 56Fe, 55Mn, 52Cr, 66Zn, 63Cu, 78Se, 88Sr and 193Ir) were significantly different (p < 0.05) between the leg and breast meat groups. Multivariate statistics, including principal component analysis and partial least square discriminant analysis, were utilized to classify Taihe and crossbred chicken samples. The results revealed that Taihe and crossbred black-boned silky fowl muscles possessed distinct elemental profiles. Sixteen variables, including 75As, 195Pt, 175Lu, 146Nd, 140Ce, 193Ir, 141Pr, 139La, 157Gd, 197Au, 52Cr, 59Co, 23Na, 60Ni, 205Tl and 137Ba, were found to have a high discriminatory power for Taihe and crossbred samples. This study shows that multi-element profiling combined with multivariate statistics is a promising approach for the differentiation of Taihe and crossbred black-boned silky fowls.
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