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Details
Inventors: Fujita, Shozo; Asano, Koji; Hashitani, Takafumi;
Assignee: Fujitsu Limited (Kawasaki, JP)
Primary Examiner: Kunemund; Robert
Assistant Examiner: Garrett; Felisa
Attorney, Agent or Firm: Staas & Halsey

A process for the preparation of a single crystal of a biopolymer by growth from a solution, which comprises continuously changing one factor having an influence on the conditions for crystallization of a solution of a biopolymer, fractionating the solution, and independently crystallizing the resultant fractions. The process may be carried out by an apparatus comprising a means for feeding a crystallizing agent solution, a means for feeding a biopolymer solution, a means for producing a series of changes of predetermined crystallization conditions, said means continuously changing at least one factor having an influence on the conditions for crystallization of the biopolymer solution, and means for fractionating the solution and independently crystallizing the resultant fractions.

DETAILED DESCRIPTION A primary object of the present invention is to provide a process and apparatus for preparing a single crystal of a biopolymer by growth from a solution, in which the optimum conditions for crystallization of a biopolymer can be easily and efficiently determined by using a small amount of a sample.
More specifically, in accordance with the present invention, there is provided a process for the preparation of a single crystal of a biopolymer by growth from a solution, which comprises continuously changing one factor having an influence on the conditions for crystallization of a solution of a biopolymer, fractionating the solution, and independently crystallizing the resultant fractions.
The present invention further provides an apparatus for the preparation of a single crystal of a biopolymer by growth from a solution, which comprises: a means for feeding a crystallizing agent solution; a means for feeding a biopolymer solution; a means for producing a series of changes of predetermined crystallization conditions, said means continuously changing at least one factor having an influence on the conditions for crystallization of the biopolymer solution; and, a means for fractionating the solution and independently crystallizing the resultant fractions.


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