Title: Method for extracting natural caffeine from tea
Application Number: 90109607 Application Date: 1990.11.28
Publication Number: 1061779 Publication Date: 1992.06.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07D487/04
Applicant(s) Name: Zhu Wenbin Address: 545007
Inventor(s) Name: Chen Jianping, Ru Peilin
Attorney & Agent: ZHANG RONGJIU
Abstract:
     The present invention refers to a method for extracting natural caffeine from tea. A non-toxic organic solvent is mixed with tea in the specified proportion and heated, then separated centrifugally to get caffeine contained solution, which is concentrated, decoloured, and dried to obtain natural caffeine. The main advantages of the present method are simple process, no toxicity throughout the process, no environmental pollution, low product cost, high purity, and good for commercialization.
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