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.
Lyophilization_of_Giloy_stem.pdf
Nella medicina tradizionale indiana, il Giloy è una delle erbe ayurvediche più utili. La liofilizzazione è valutata come un metodo di essiccazione per preservare le proprietà di Giloy. La liofilizzazione è nota per essere uno dei metodi più appropriati per la conservazione
di materiali naturali e biologici grazie all'ambiente privo di ossigeno e alle basse temperature di esercizio.Determinazione dell'azoto e delle proteine nei mangimi per animali secondo il metodo Kjeldahl
La determinazione delle proteine nei mangimi è una procedura di routine, di garanzia della qualità e di valore in etichetta. Di seguito viene presentato un metodo semplice e veloce per la determinazione delle proteine nei prodotti per mangimi secondo le norme ISO 5983-2:2009 e AOAC 954.01. Il campione viene digerito con acido solforico e compresse Kjeldahl Titanium utilizzando il digestore automatico K-438, seguito da distillazione e titolazione con il KjelMaster K-375 con KjelSampler K-376.