Mathematical modeling of supercritical CO2 extraction of hops (Humulus lupulus L.)

作者：Kupski Sergio Carlos^*; Klein Elissandro Jair; da Silva Edson Antonio; Palu Fernando; Guirardello Reginaldo; Adeodato Vieira Melissa Gurgel

来源：Journal of Supercritical Fluids, 2017, 130: 347-356.

DOI：10.1016/j.supflu.2017.06.011

• Humulus lupulus l
• Supercritical extraction
• Carbon dioxide
• Mathematical modeling

The supercritical CO2 extraction of hop pellet (Humulus lupulus L.) was performed under different conditions of temperature and pressure. The yields obtained ranged from 1.2% (100 bar, 55 degrees C) to 7.1% (200 bar, 55 degrees C). The extracts were analyzed by GC-MS, and the most abundant compound was lupulone. Kinetic curves were simulated using the equilibrium, broken and intact cells (BIC) and shrinking core (adapted for slab-like particles) models with satisfactory adjustment on all three models, but with significant better results with BIC model. A correlation to estimate the operational solubility was obtained. Mass transfer parameters obtained were temperature and pressure dependent and were studied using the microstructural factor.

• 出版日期2017-12