Results 231 to 240 of about 411,029 (299)

Characterization of Microencapsulated <i>Thymus schimperi</i> Essential Oil Prepared by Spray and Freeze-Drying Using Gum Arabic as Carrier Material. [PDF]

Food Sci Nutr
Asres Y, Hymete A, Admassu H, Ayalew A.
europepmc   +1 more source

Recent Advances and Future Perspectives on Heat and Mass Transfer Mechanisms Enhanced by Preformed Porous Media in Vacuum Freeze-Drying of Agricultural and Food Products. [PDF]

Foods
Hu X, Zhang B, Du X, Zhang H, Zhu T, Zhang S, Yang X, Zhang Z, Yang T, Wang X, Wu C.   +10 more
europepmc   +1 more source

An Overview of New PAT Freeze-Drying Methods Based on Shelf Temperature Inlet/Outlet Difference or Chamber/Condenser Pressure Difference: Theory and Practical Use. [PDF]

Pharmaceutics
Authelin JR.
europepmc   +1 more source

A laboratory-friendly protocol for freeze-drying sample preparation in ToF-SIMS single-cell imaging. [PDF]

Front Chem
Shi X, Liu M, Qi Y, Ma H, Wang Z, Chen Y, Abliz Z.   +6 more
europepmc   +1 more source

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Thermoelectric freeze‐drying

Journal of Microscopy, 1974
SUMMARYFreeze‐drying is a useful way to maintain the three‐dimensional morphology of biological materials for electron microscopy. The process is achieved simply by utilizing a commercially available thermoelectric unit within a standard vacuum evaporator.
I J, Bendet, N I, Rizk
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Freeze-Drying of Proteins

2014
Freeze-drying has become one of the most important processes for the preservation of biological products. This chapter provides protocols for freeze-drying of proteins and discusses the importance of formulation, cycle development, and validation. Specific formulations for stabilization of proteins are presented as well as advice on common problems ...
Baolin, Liu, Xinli, Zhou
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Freezing and freeze-drying

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1975
Abstract Most biological substances are unstable during storage owing to their high water content. This is why numerous attempts have been made over the last 100 years to prevent, by low temperature freezing, metabolic and biochemical degradations.
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Freezing and freeze-drying of microorganisms

Cryobiology, 1964
Some papers reporting the effects of intense cold on microorganisms had already appeared in the 19th century and since then there have been a great many investigations of the freezing of microorganisms.3* 53 ‘I, 12 These experiments demonstrate that a wide variety of microorganisms can survive cooling to and storage at very low temperatures.
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Freeze-Substitution and Freeze-Drying

1987
Freeze-substitution (FS) and freeze-drying (FD) are dehydration techniques by which the water is gently removed from a frozen specimen. Both techniques can serve as a link between cryofixation and conventional thin sectioning at room temperature (Fig. 1).
Steinbrecht, R., Müller, M.
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Freezing and Freeze-Drying

2016
Freezing of biological materials is commonly carried out to delay biochemical and chemical changes resulting in loss of activity. However, the physicochemical background of freezing is not well understood. Freeze-drying is generally aimed at preserving biological materials and bioactive components for long periods of time without the need for frozen ...
Yrjö H. Roos, Caroline Furlong, Naritchaya Potes   +2 more
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