Comparison of lipase activities between SS-loin and S-loin
Though the lipase activities were markedly decreased with
time during the whole process (Table 3), the SS-loin showed a
higher neutral lipase activity than that of S-loin at the end of
salting. After 8 days of drying-ripening, the activity of neutral
lipase in the SS-loin groupwas 26.42% more than that in the S-loin
group. Thereafter, no significant differences were found between
SS-loin and S-loin. Similar changes were observed in acid lipase
activities (Table 3). The results were in accordance with Ripolles
et al. (2011), who reported that no significant difference in acid
lipase activity was observed between the alternative formulation
(50% NaCl and 50% KCl) and control formulation (100% NaCl) for
dry-cured ham.
As for phospholipase, the activity in SS-loin was significantly
higher than that in S-loin from 8 to 18 days of drying-ripening
(P < 0.05). Furthermore, the phospholipase activity in the final
SS-loin product was 79.63% more than that in S-loin (P < 0.05).
This increased phospholipase activity in SS-loin might be
responsible for the decreased phospholipids and increased free
fatty acid content described before (Table 1).