Separation of α‑Terpineol and Limonene from an Orange Essential Oil Mixture Using Supercritical CO₂ Pressure Reduction.

ABSTRACT: Brazil is the world's largest orange producer, generating significant amounts of byproducts that are used to produce limonene-rich orange essential oil. In this sense, one possible alternative for its valorization is the biotransformation of limonene into α-terpineol, which has emerged as a promising valorization route, but the efficient separation of these compounds remains challenging due to their similar chemical nature. This work aimed to evaluate the solubility and fractionation behavior of α-terpineol and limonene in supercritical CO₂ (SC-CO₂) using a model mixture (orange essential oil + α-terpineol, 60:40 wt %), which simulated a biotransformation product. The best solubilization was found at 10 MPa and 40 °C. Supercritical fluid fractionation (SFF) was perfor

SUBMITTER: de Melo RPF 

PROVIDER: S-EPMC12593098 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature