2021
DOI: 10.3311/ppch.18456
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Pressurized Liquid Extraction of Hemp Residue and Purification of the Extract with Liquid-Liquid Extraction

Abstract: The first semi-continuous Pressurized Liquid Extraction (PLE) of hemp threshing residue with ethanol was carried out according to a 32 full factorial experimental design with pressure and temperature as independent variables at 8-10-12 MPa and 323-333-343 K, respectively. The total- and cannabidiol (CBD) yield curves were fitted to the modified two-parameter Brunner equation. Best results, concerning CBD, can be achieved at 12 MPa and 343 K. Solvent mass-consumption and operation time were considerably decreas… Show more

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Cited by 5 publications
(2 citation statements)
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“…In addition, high-pressure technologies, such as pressurized liquid extraction (PLE) and SFE, also have been largely employed. PLE was used largely to obtain cannabinoids [47][48][49]; meanwhile, SFE is the most applied method to obtain oil [50][51][52][53][54], cannabinoids [55][56][57][58][59][60][61][62], volatile compounds [59,63,64], and phenolic compounds [46].…”
Section: Supercritical Fluid Extraction (Sfe)mentioning
confidence: 99%
“…In addition, high-pressure technologies, such as pressurized liquid extraction (PLE) and SFE, also have been largely employed. PLE was used largely to obtain cannabinoids [47][48][49]; meanwhile, SFE is the most applied method to obtain oil [50][51][52][53][54], cannabinoids [55][56][57][58][59][60][61][62], volatile compounds [59,63,64], and phenolic compounds [46].…”
Section: Supercritical Fluid Extraction (Sfe)mentioning
confidence: 99%
“…PLE has also been evaluated for CBD extraction from hemp threshing residue with ethanol, where the solvent mass-consumption and operation time were decreased compared to a supercritical fluid extraction technique [ 83 ].…”
Section: Current Status Of Cannabis Extraction Tec...mentioning
confidence: 99%