Abstract
IN NATURE of December 29, Prof. M. Foster calls attention to the method of making glycerine extract of pepsin pursued by Von Wittich, and remarks with reason that the means hitherto adopted for preparing pepsin for medical purposes are clumsy and inefficient. There is, however, one exception, a mode of preparation which has long been in use, and which is by no means inefficient. This will be found to possess some practical advantages over the process of extracting the fresh mucous membrane with glycerine, while from it the glycerine solution can be prepared quite as pure and clear, and as strong as by maceration.
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BEALE, L. Glycerine Solutions of Pepsin and other Substances. Nature 3, 207 (1871). https://doi.org/10.1038/003207a0
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DOI: https://doi.org/10.1038/003207a0
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