The FFA composition, including conjugated linolenic acid (CLA),
is shown in Fig. 3. Butyric acid showed one of the lowest levels
amongst FFAs. S¸ enel et al. (2011) also reported that the butyric acid
content of butter samples produced from cows', goats' and ewes'
milk yoghurt was found at a trace level. The level of butyric acid
was 0.65% at the beginning of storage, and 0.25% at the end of
storage in sample B. The level of caproic acid changed between
0.45% and 2.53% during storage (Table 3). The caprylic acid content
of sample B (1.22%) was higher than samples A (0.99%) and C
(1.00%) at the beginning of storage. Compared with the control
sample (2.58%), samples B (%3.37%) and C (3.08%) had higher level
of capric acid at the 2nd day of storage (P < 0.05) (Fig. 3). Samet-
Bali, Ayadi, and Attia (2009) commented that changes in the fatty
acid composition could be associated with the degradation of fat by
heating and oxidation.