Fourier transform infrared spectroscopy and multivariate analysis of milk from different goat breeds

Figures & data

Figure 1. Mid-infrared spectra for the 4000–400 cm⁻¹ spectral region recorded on milk samples of Jamnapari (J), Saanen(S) and Toggenburg(T) breeds

Table 1. The average composition of milk samples from Jamnapari, Saanen and Toggenburg

Components (%)	Breeds
	Jamnapari	Saanen	Toggenburg
Protein	3.73^b ± 0.03	3.05^a ± 0.04	2.97^a ± 0.02
Fat	4.20^c ± 0.11	2.53^a ± 0.07	2.98^b ± 0.08
Lactose	5.30^c± 0.30	4.52^a± 0.16	4.85^b± 0.19

Values in the same rows with different alphabets are statistically different (P < 0.05); presented data are mean value of triplicate ± standard error.

Figure 2. Partial least square discriminant analysis (PLS-DA)score scatter plot of milk from different goat breeds; Jamnapari (J), Saanen (S) and Toggenburg (T)

Figure 3. The permutation plot with the R²Yand Q²Y value for: Saanen (A), 0.131 and −0.398; Jamnapari (B), 0.173 and −0.354; Toggenburg (C), 0.133 and −0.326, respectively