OPTIMASI PEMURNIAN ASAP CAIR
DENGAN METODA REDISTILASI[Optimation of Liquid Smoke Purification by Redistilation Method)
Purnama Darmadji 1)
1) Teknologi Pangan dan Hasil Pertanian, Fakultas Teknologi Pertanian- Universitas Gadjah Mada
ABSTRACT
Purification of liquid smoke is very important for the safety of the liquid smoke, because of content of tar and some carsinogenic substances. This research was done using re-distillation process, with three factor treatment including : 1) distillation temperature, distillation time and condensation temperature. The range of distillation temperature was ‹ 100 ° C, 100-125 ° C, 125-150 ° C and ›150 ° C. Distillation time was 30, 60 and 90 minutes, and condensation temperature was : 10-15 ° C, 15-25 ° C and 25-30 ° C. The results indicated no detected tar content in the purified liquid smoke, and optimum condition for redistillation process was : 122.5 ° C for distillation temperature, distillation time was 69 minutes and condensation temperature was 24 ° C. At this optimum condition the value of phenol, carbonyl and total acid were 2.24%, 5.60% and 15.7%, respectively.
Key words : Liquid smoke, redistilation and optimum condition of redistilation.