Abstract
Abstract The first step of the proteomic study is the extraction and the success of this technique was based mainly on the choice of the best extraction. The purpose of this study was to determine the simplest and lowest-cost method of total protein extraction. Initially, various extraction methods were performed for protein extraction from roots of Astragalus armatus Willd. The methods employed were extraction by RIPA buffer, hypotonic buffer and distilled water. After determination of protein concentration by Bradford method and SDS PAGE electrophoretic analysis, the quantity and quality of extracted proteins using different protocols from A. armatus were determined and compared. The protein yield of RIPA buffer method was higher than the yields of hypotonic buffer method and distilled water method. The best protein patterns were produced by RIPA buffer method. The extract obtained by RIPA buffer was the optimal protocol for protein extraction.
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