Water Reconstitutability Wetting

Directions for reconstitution Tap bottle until all powder flows freely. Add approximately 2/3 of the 90 mL of water shake vigorously to wet powder. Add remaining water and shake vigorously again. 

The wet material in the form of a wet solid or in the form of a suspension or solution is frozen under vacuum or at atmospheric pressure, followed by transforming the ice into vapor and removing il. In the usual case, the dried material remaining will be a spongy mass of about the same size and shape as the original frozen mass. Il frequently will be found to have excellent stability, convenient reconstitution when placed in cold water, and will maintain flavor and texture sometimes indistinguishable from the original materials. These properties differ markedly with various materials. Some products arc much better adapted to the process than others. 

The wet spinning of regenerated spidroin was reported in the early 1990s by Jelinski et al. They dissolved spider silk in hexafluoroisopro-panol (HFIP) at a concentration of 2.5 wt% to produce an artificial fiber using water, methanol, isopropanol, and acetone as coagulation bath. The reconstituted silk could only be shaped in acetone but the structure... 

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