Applikationen
Cosmetics Lab, Teil 2
Erfahren Sie in der 2. Ausgabe von «COSMETICS LAB», wie aus natürlichen Rohstoffen Wirkstoffe entstehen. Profitieren Sie von nützlichen Informationen über Techniken, die in der Kosmetikentwicklung eingesetzt werden. Lernen Sie, wie man Wirkstoffe identifiziert und extrahiert, und wie die Chromatographie zur Reinigung von Rohstoffen genutzt wird. Darüber hinaus bieten wir Ihnen unterhaltsame Fakten, Horoskope, Quizfragen und ein exklusives Interview zur Bekämpfung von Fehlinformationen in der Kosmetikindustrie.
Cosmetics Lab, Teil 3
In der 3. Ausgabe von «COSMETICS LAB» finden Sie alles über die Herstellung von Make-up. Verbessern Sie Ihre Kenntnisse über Formulierung durch aufschlussreiche Informationen über Mikroverkapselung und Sprühtrocknung. Erhalten Sie ausserdem Tipps zur Formulierung von Kosmetika, sowie Rezepte, Quizfragen, Horoskope und lesen Sie ein exklusives Interview mit einem Experten für Mikroverkapselung.
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.