Optimization of Extraction for Exopolysaccharides from Grifola Frondosa Antimicrobial Activity of Nitellopsis obtusa(Charophyta) and Optimization of Extraction Conditions Studies on extraction process of Fructus Schisandrae Chinensis and Fructus Ligustri Lucidi in Gandening tablet Response Surface Optimization of Conditions for Extraction and Gel Preparation of Salt-soluble Proteins from Dosidicus gigas Muscle Optimization of extraction process of total amino acid from Bubali Cornu by orthogonal test