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	The process of recovering these useful natural products and extracts is water or solvent past extraction concentration and if required drying. This may require Multistage Evaporative Concentration, Solvent Recovery, Vacuum or Spray Drying operation. Another type of natural types is essentially wet and fibrous products which are dried in Conduction Type Steam Tube Dryers or Conduction Convective Type Steam Tube Rotary Dryers. Some type of animal feed and animal waste are dried in Rotary Flash or Fluid Bed Dryer.

Plant & Herbal Extracts

The useful ingredient in the plants are extracted in either water or solvent. The selection depends on the type of ingredient to be extracted. The process requires either batch or continuous Evaporation system to remove the water or solvent to concentrate after extraction. Some of the products which can form solid powder may also require Spray Drying operation. The spirulina algae harvested from ponds is Spray Dried. Spray Drying operation is the most ideally suited processed for getting dry tannins in the powder or granular form. Spray Drying operation is the most ideally suited processed for getting dry natural food colours in the powder or granular form.

Yeast & Enzymes

Batch type Fluid Bed Dryers are used for drying yeast. Special temperature profiles and cycles need to be used for getting the desired properties of the yeast. Enzymes like papain are Spray Dried to get dry powder. Alternatively batch Vacuum Dryers are also employed. Spray Drying operation is the most ideally suited processed for getting dry hydrolyzed proteins in the powder or granular form.

Fibrous Materials Cellulose & Derivatives

Micro crystalline cellulose is Spray Dried while cellulose acetate is dried on Fluid Bed Dryers. Conduction dryer like Steam Tube Rotary Dryer is commonly used for drying wood chips and other fibrous matters. Rotary Dryer, Flash Dryer or Fluid Bed Dryer is used. For drying different types of animal feeds. The choice depends on the type of basic feed ingredient.

Animal Wastes

Ossein from animal bones is dried in Rotary Dryer / Flash Dryer. The animal droppings and excreta are also dried and sterilized to get manure in Rotary Dryers.

Food & Beverages

Organic Products