Results
Milk fatty acids
Composition (Table 6) and yield (Table 7) of individual
FA in milk TAG were affected by the type of oils
embedded in the WPI-based composite gels. Feeding
gels changed the concentration of specific long chain
fatty acids (LCFA), thus indicating the functionality of
the composite gel in decreasing the extent of rumen
biohydrogenation of unsaturated FA (Table 6). Concentration
and yield of LA increased linearly
(p < 0.01) with increase in the proportion of LA
included in the gel. The concentration of LA in milk
FA was 9.3, 6.22 and 3.96 g/100 g FA for WPI/S,
WPI/SL and WPI/L respectively. The concentration of
ALA in milk FA increased linearly (p < 0.01) with the
proportion of ALA included in the gel. Concentration
of ALA was 1.64 g/100 g FA for WPI/S and increased
to 4.36 g/100 g FA for WPI/SL with a smaller, further
increase in concentration to 6.13 g/100 g FA for WPI/
L.