[NHCOLL-L:5884] Freeze drying

[Paul Callomon]

Just a side note to the discussion on freeze drying: a few years back we were able to extract clean and reliable DNA from lyopholized (freeze-dried) mollusk tissue. These were small samples in glass ampoules that were at least 30 years old. If you have a freeze dryer and are interested in preserving DNA records, therefore, this may be a cheaper (no maintenance!) alternative to keeping a wet or frozen collection.

Paul Callomon
Collections Manager in Malacology, Invertebrate Paleontology and General Invertebrates
The Academy of Natural Sciences of Drexel University
1900 Benjamin Franklin Parkway
Philadelphia, PA  19103
callomon at ansp.org
Tel. 215-405-5096
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