para-Menthane as a Stable Terpene Derived from Orange By-Products as a Novel Solvent for Green Extraction and Solubilization of Natural Substances

Molecules

Anne-Sylvie Fabiano-Tixier¹  Farid Chemat¹  Soukaina Hilali¹  Sara Madji¹  Antoine Bily²  Mathieu Tenon²  Mickaël Laguerre² 

[1] GREEN Extraction Team, Avignon University, INRA, UMR408, F-84000 Avignon, France;Naturex, 250 rue Pierre Bayle, BP81218, F-84911 Avignon CEDEX 9, France;

关键词: p-menthane;    Citrus by-products;    hydrogenation;    green solvent;    extraction;    Soxhlet;    Dean–Stark;   

DOI  :  10.3390/molecules24112170

来源: DOAJ

【 摘 要 】

This study aims at investigating p-menthane, a novel bio-based solvent resulting from the hydrogenation of d-limonene, as a green alternative to n-hexane or toluene for the extraction and solubilization of natural substances. First, conductor-like combination of quantum chemistry (COSMO) coupled with statistical thermodynamics (RS) calculations show a comparable solubilization profile of p-menthane and n-hexane for carotene, volatile monoterpenes such as carvone and limonene, and model triglycerides. Other data obtained experimentally in solid/liquid extraction conditions further indicate that p-menthane showed similar performances to n-hexane for extracting carotenes from carrots, aromas from caraway seeds, and oils from rapeseeds, as these products showed a comparable composition. p-Menthane was also tested using common analytical extraction procedures such as Soxhlet for determination of oil content via multiple extraction stages, and Dean−Stark for determination of water content via azeotropic distillation. For both systems, yields were comparable, but for Dean−Stark, the distillation curve slope was higher when using p-menthane, and the time needed to attain 100% water recovery was 55% shorter than for toluene. Taken together, these results reveal the potential of p-menthane as a green replacer for petroleum-based solvents such as n-hexane or toluene.

【 授权许可】

Unknown