Amiata Donkeys: Fat Globule Characteristics, Milk Gross Composition and Fatty Acids

Figures & data

Figure 1. Frequency distribution of globule percentages in diameter size classes (Cl).

Table 1. Gross composition and fatty acid classes of Amiata donkey milk.

	Mean	SD
Composition, g/100 mL
DM	9.47	0.05
Fat	0.53	0.04
Proteins	1.63	0.02
Casein	0.78	0.02
Lactose	7.12	0.03
NFDM	8.91	0.05
Ash	0.36	0.07
Fatty acid classes, g/100 g of total fatty acids
SCFA	12.29	4.07
MCFA	40.08	7.43
LCFA	47.64	8.91
SFA	50.20	9.49
MUFA	35.50	8.85
PUFA	14.70	4.13
UFA/SFA	1.00	0.53

SD, standard deviation; DM, dry matter; NFDM, not fat dry matter; SCFA, short chain fatty acids (from 4 to 10 C); MCFA, medium chain fatty acids (from 11 to 17 C); LCFA, long chain fatty acids (from 18 to 24 C); SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids; UFA, unsaturated fatty acid.

Table 2. Morphometric characteristics of milk fat globules.

	Mean	SD
Globules/mL, n ×10^9	2.18	0.17
Mean diameter, μm	1.92	0.04
SG, %	69.74	1.81
MG, %	27.49	1.58
LG, %	2.77	0.39

SD, standard deviation; SG, small globules (<2 μm); MG, medium globules (from 2 to 5 μm); LG, large globules (>5 μm).