Biopolymer extraction from plant materials

Drug – bio-affecting and body treating compositions – Plant material or plant extract of undetermined constitution...

Reexamination Certificate

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C209S003000, C209S012100, C209S013000, C210S511000, C210S634000, C424S775000, C526S238300, C526S335000, C528S001000, C528S480000, C528S499000, C528S50200C, C528S50200C, C528S50200C, C528S930000, C528S931000, C528S932000, C528S934000, C528S937000

Reexamination Certificate

active

07923039

ABSTRACT:
Disclosed is a method and apparatus for the extraction of high molecular weight biopolymers from plants. Specifically, invention described herein relates to the commercial processing of plant material, including that from desert plants native to the southwestern United States and Mexico, such as the guayule plant (Parthenium argentatum), for the extraction of biopolymers, including natural rubbers. More specifically, the invention relates to laboratory to commercial scale extraction of high molecular weight biopolymers from plant materials including the chemical and mechanical processing of the plants and purification of the extracted biopolymer.

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