Einsatz organischer Lösungsmittel in Laborgefriertrocknern

Extraction of micropollutants from contaminated sediments after heavy rain events

Pressurized solvent extraction (PSE) of contamined sediments as a critical part of aquatic risk accessment

Formulierungstipps für Proben mit Cannabisöl

Mit diesem kostenlosen Whitepaper erhalten Sie nützliche Einblicke in die Sprühtrocknung und Verkapselung, zwei gängige Techniken zur Formulierung von Cannabinoiden. Ausserdem erfahren Sie, warum Cannabinoide in Pulverform benötigt werden. 

Nutzen Sie den Leitfaden, um auf einfache Weise eine marktfähige Form von Cannabinoiden herzustellen.  

Ratgeber der Gefriertrocknung, Teil 1: Gundlagen & Anwendungsbereiche

Diese Anleitung vermittelt Grundkenntnisse und Applikationen für die Gefriertrocknung.

Ratgeber der Gefriertrocknung, Teil 2: Illustriertes Toolkit für allgemeine Anwendungen

Die Anleitung vermittelt Ihnen Kenntnisse über die Hardware, das Verfahren der Gefriertrocknung und eine Zusammenfassung der wichtigsten Parameter und Schritte der Probenvorbereitung.

Freeze drying of beads containing yeasts

The cell viabilities of microorganisms during storage are of economic importance for probiotic dietary food and feed supplements. By combining granulation and freeze drying, dust free particles homogeneous in size and composition can be obtained. This will enable a good particle flowability, an easier dosage and a faster reconstitution of the product can be obtained. Encapsulator as a granulator to prill the yeasts suspension into liquid nitrogen and form monodispersed beads that will then be freeze dried.

Lyophilisation of fresh banana slices

Freeze drying is a gentle form of drying and may be used to preserve foods without changing their appearance or taste. The freeze drying process includes the freezing of the food sample and subsequent applying a fine vacuum to the frozen sample. Under these conditions, the water in the food will sublimate, hence, the sample dries. In food applications, freeze drying is commonly used to make instant coffee and to dry and conserve fruits, vegetables or herbs.

Lyophilisation of mannitol and NaCl solutions in serum vials

In this Application Note sodium chloride (NaCl) and mannitol are used for freeze drying experiments. The unambiguous crystal structure of NaCl renders this salt a model compound. In contrast, mannitol is well known to crystallize in different polymorphs and it may form hydrates. Nevertheless, mannitol is the most used bulking agent for freeze dried pharmaceutical formulations. The benefits of using mannitol are that it crystallizes during freezing, creates a beautiful cake and permits drying processes at higher product temperatures, thus with higher sublimation rates compared to purely amorphous systems.

Lyophilisation of truffles

Truffles are products with limited shelf life and their sensory properties are rapidly lost. Hence, the expensive fungi become less valuable within a few days. Losses of volatile compounds, oxidation and enzymatic reactions are a considerable problem during their storage. Furthermore, the aroma profile is commonly modified as a result of elevated temperature processes or enzymatic reactions. Freeze drying the fungi avoids loss and degradation of volatile compounds due to the low temperatures applied during drying. The aromatic profile of truffles are maintained. Freeze dried truffles can either be rehydrated or directly used in dry form.

Polycyclic aromatic hydrocarbons in sludge samples

SpeedExtractor E-916, Syncore Analyst: Pressurized Solvent Extraction of a sludge sample for the determination of polycyclic aromatic hydrocarbons (PAHs)

Der Zeit voraus: Gefriertrocknung! – Poster

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