Conclusions
This research described the volatile, aroma compounds
and key odourants of fresh and dried kaffir
lime leaves identified by GC–MS and GC–O. Citronellal
and L-linalool were significantly considered as
key odourants because of their highest value of Log3
FD value and their characteristic odour of kaffir lime
leave. For drying temperature, hot air-drying at 50 °
C for 6 h showed no significant effect on most key
odourants compared to fresh kaffir lime leaf. At
higher drying temperatures of 60 and 70 °C, a significant
reduction on some key odourants was evident.
However, concentration of most selected key odourants,
particularly citronellal and L-linalool in 60 and
70 °C dried kaffir lime leaves were not significantly
different.
Acknowledgments