Improving the quality of liquid smoke from oil palm fronds through adsorption and distillation processes
| Autor: | F A Sinaga, Seri Maulina |
|---|---|
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 801:012062 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/801/1/012062 |
| Popis: | This research aims to obtain information regarding purification of liquid smoke from the pyrolysis of oil palm fronds to be used as a preservative product following food quality standards. This research started by performing the pyrolysis of oil palm fronds at 250 °C for 2 hours to produce liquid smoke. Subsequently, the liquid smoke from the pyrolysis was purified in two stages, namely adsorption and distillation. The adsorption which was carried out at 60 °C for 1 hour by using an activated zeolite, resulted in liquid smoke which still contains a tar contaminant compound. The analysis of the liquid smoke after adsorption showed a decrease in the composition of carbonyl and phenol compounds but in trace amounts. Meanwhile, the distillation was carried out at 125, 150, 175, and 200 °C and at 15,30,45, and 60 minutes, which resulted in a liquid smoke that is free of tar. The research revealed that the recommended temperature and time of distillation was at 150 °C and 45 minutes with tar residue of 2.4 %, total acid of 5.15 % and a pH of 2.3. Furthermore, GC-MS analysis indicated that the resulting liquid smoke was dominated by acetic acid compounds of 45.46 % (w/w). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|