Bioseparation Technology

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Presentation transcript:

Bioseparation Technology Shinta Rosalia Dewi

Penilaian MLF WAN SRD Praktikum Ujian : 60% Tugas (paper/presentasi/kuis) : 40% 100%

Reference J. D. Seader and Ernest J. Henley, 2006, Separation Process Principles Second Edition, John Wiley & Sons, Inc. Raja ghosh, 2006, Principles Of Bioseparations Engineering, World Scientific Publishing Co. Pte. Ltd Richard D. Noble and Patricia A. Terry, 2004, Principles of Chemical Separations with Environmental Applications, Cambridge University Press Earle R.L and Earle, M.D, Unit Operations in Food Processing

Bioseparation engineering  the large-scale separation and purification of biological products : biopharmaceuticals, biochemicals, foods, diagnostic reagents, etc

Why ? Processing Bioseparation Waste treatment

Application Separation

Basic of separation Size: e.g. filtration, membrane separation, centrifugation Density: e.g. centrifugation, sedimentation Diffusivity: e.g. membrane separation Shape: e.g. centrifugation, filtration, sedimentation Polarity: e.g. extraction, chromatography, adsorption Solubility: e.g. extraction, precipitation, crystallization Electrostatic charge: e.g. adsorption, membrane separation, ion exchange Volatility: e.g. distillation, evaporation

Coagulation-Flocculation-Sedimentation-Filtration Coagulation : the process in which dispersed colloidal particles agglomerate. Flocculation : the process where in colloids come out of suspension in the form of floc or flakes by the addition of a clarifying agent Sedimentation/settling : the process of letting suspended material settle by gravity. Filtration is the process of removing suspended solids from water by passing the water through a permeable fabric or porous bed of materials

Membrane separation A membrane is a thin semi-permeable barrier which can be used for separation : particle-liquid, particle-solute, solute-solvent, solute-solute separation Driving force : solute size, electrostatic charge, diffusivity, solute shape A membrane may be made from organic polymers or inorganic material such as glass, metals and ceramics, or even liquids.

Centrifugation Separates particles from suspensions, macromolecules from solutions Driving force : Size and density Centrifugation efficiency : large particle diameter, large density Ultracentrifuge  higher speed (30000 rpm - 50000 rpm)  separating macromolecules

Precipitation Precipitation based bioseparation essentially involves selective conversion of a specific dissolved component of a complex mixture to an insoluble form using appropriate physical or physicochemical means. The insoluble form which is obtained as a precipitate (typically an easy to sediment solid)

Precipitation (Con’t) Biological macromolecules can be precipitated by: Cooling pH adjustment Addition of solvents (aseton)

Crystallization Crystallization is a special type of precipitation process where the solid is obtained in a crystalline form. Driving force : solubility

Extraction Extraction : partitioning of a solute between two immiscible or partially miscible phases. Driving force : Polarity and solubility, density Liquid-liquid extraction Solid-liquid extraction Supercritical fluid extraction (SFE) An environmental  separation of acetic acid–water mixtures

Adsorption and desorption Adsorption : the binding of molecules on the surface of solid material Solid material is called the adsorbent, the molecule that binds on the adsorbent is adsorbate. The release of adsorbed material from an adsorbent is called desorption Driving force  size and shape, polarity, electrostatic charge Removal of water  Silica gel, zeolites, membrane

Adsorption … (Con’t)

Absorption and stripping Absorption is the process the binding of molecules into the bulk of absorben Stripping (or desorption) is the release of absorbate (solute) from absorben Environmental  the removal of ammonia gas from an air stream with water as the mass-separating agent.

Absorption … (Con’t)

Ion exchange Ion exchange is very similar to adsorption; both processes involve mass transfer from a fluid to a solid phase. Ion exchange is based on electrostatic interactions between the molecule and the ion exchanger. Cation exchange adsorbent is negatively charged and can therefore bind positively charged molecules. Anion exchange adsorbent is positively charged and can bind negatively charged molecules

Chromatography Chromatography is a solute fractionation technique which relies on the dynamic distribution of molecules to be separated between two phases: a stationary (or binding) phase and a mobile (or carrier) phase. Stationary phase: Phase that stays in place inside the column Mobile phase: Solvent moving through the column. Driving force : polarity

Chromatography (Con’t)

Distillation Distillation separates components of a liquid mixture based on their different boiling points. Driving force : temperature

Evaporation Evaporation is to vaporize most of the water from a solution containing a desired product The final product of evaporation is a concentrated liquid, not a solid Driving force : temperature

Drying Drying is a mass transfer process consisting of the removal of water or another solvent from a solid, semi-solid or liquid. The final product is solid. Driving force : temperature

Food Technology : Sugar Production