Publisher's Synopsis
Excerpt from Chemistry, Pharmacology, and Clinical Application of Rutin
An early publication (25) described the preparation of rutin from tobacco by percolation With ethyl alcohol. The first rutin from buckwheat was prepared by cold solvent extraction of green plant, as described in later publicae tions (27, Proper drying conditions for the preparation of a buckwheat leaf meal were developed and the meal was then extracted with either cold solvent or hot water as described in the same publication. A later circular described the preparation and refining of rutin from both green plant and meal by use of hot solvents A revision (45) described ime pravamente in drying conditions and hot water extraction technique A final comprehensive paper on production of rutin from buckwheat (79) described the optimum preparative and refining techniques, presenting many of the data upon which recommendations to the rutin manufacturers were made.
The most efficient method for preparing and refining rutin from buckwheat may be described briefly as follows.
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