1.4.The Biotechnical Process Raw matrials Reaction Downstream processing Hydrolysis Optimization Sterilization Sedimentation Biocatalyst Filtration Chrystallization m Fermentation Precipitation Enzymatic catalysis Extraction Screening Adsorption Mutation Chromatography rDNA techniques Fusion Immobilization 1. Main unit operations and unit processes of industrial biotechnology 1.4. The Biotechnical Process