Re-use of Extraction Solvents in the Manufacture of Herbal Extracts

Rubrik: europharm

(Treffer aus pharmind, Nr. 01, Seite 71 (2017))

Bauer S | Herde A | Schlegel P | Daniel M | Tegtmeier M | Brand N | Steinhoff B

Re-use of Extraction Solvents in the Manufacture of Herbal Extracts / Bauer et al. • Re-use of Extraction Solvents · Bauer S, Herde A, Schlegel P, Daniel M, Tegtmeier M, Brand N, Steinhoff B · ¹Max Zeller Söhne AG, Romanshorn, Schweiz und ²SALUS Haus GmbH & Co. KG, Bruckmühl und ³Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe und ⁴Finzelberg GmbH & Co. KG, Andernach und ⁵Schaper & Brümmer GmbH & Co. KG, Salzgitter und ⁶Maros Arznei GmbH, Fürth und ⁷Bundesverband der Arzneimittel-Hersteller e. V. (BAH), Bonn
The majority of herbal preparations used in herbal and traditional herbal medicinal products are herbal extracts. For their production, mainly mixtures of ethanol or methanol and water are used, but also water, acetone or ethyl acetate, etc. In many cases organic solvents are recovered/recycled during the production process for environmental reasons as well as due to safety considerations. Such a procedure is generally accepted but questions on the quality of these recovered/recycled solvents and of the extracts resulting from their use arise. This publication intends to collect experiences of manufacturers from their daily practice and to present recommendations for the ...