Concentration & aroma · Stage 08
Capture volatile apple aroma from evaporation or deaeration, concentrate it and decide how it is returned to the product.
THE PROCESS DUTY
Apple aroma is a complex mixture of volatile compounds. During deaeration, heating and evaporation, these compounds can be carried into the vapour. An aroma recovery system condenses and concentrates a fraction so it can be returned to the concentrate or used in product formulation. The recovery rate, concentration and return point are product-specific.
IN THE LINE
The equipment is only useful when its feed and discharge are defined. These adjacent duties are the first interfaces to review.
WORKING PRINCIPLE
The explanation starts with the material and the process, not a catalogue description.
Aroma can leave at deaeration, heating and the early evaporation effects. The recovery system should be connected to the stream that carries the compounds of interest. Recovering from a late-stage condenser may capture a different profile.
A recovery column or rectification step increases aroma concentration in a small stream. The design depends on the volatility of the target compounds and the allowable water content. The recovered fraction must be stable and compatible with the product.
Aroma may be returned before or after final concentration, or held as a separate product. The return point affects flavour, microbial risk and process complexity. Agree it with the product team before fixing the equipment scope.
Condensers need cooling capacity and a route for non-condensable gases. Recovery columns and condensers also need cleaning access. Aroma-rich streams can support microbial growth if left in the system, so holding and cleaning conditions matter.
WHERE IT FITS
WHAT TO WATCH
CONFIGURATION OPTIONS
These are the choices that change the equipment scope. The approved datasheet fixes the final selection.
Column type and stages selected around the vapour and target aroma fraction.
Cooling medium, surface area and condensate collection defined.
Rectification or another step to increase the aroma fraction.
Tank, dosing and return point for the recovered fraction.
CIP or manual cleaning for the column, condenser and holding tank.
SELECTION FACTORS
Bring these points to the equipment discussion. They are more useful than a single throughput number.
The vapour stream and its composition determine the recovery potential.
Whether the aroma is returned, sold separately or not recovered.
Condenser duty is a project utility requirement.
Aroma fractions need defined storage, cleaning and use-by conditions.
SPECIFICATIONS
No catalogue model or performance figure is shown until the configuration is approved. The final datasheet fixes these items.
| Specification area | What is defined in the approved datasheet |
|---|---|
| Capacity basis | Vapour flow and the target aroma fraction |
| Recovery | Column and condenser arrangement selected from the stream |
| Cooling | Condenser duty and medium defined in the utility schedule |
| Return | Storage and dosing point agreed with the product process |
| Cleaning | Cleaning route and holding conditions included |
| Documentation | Process description, utility schedule and approved datasheet |
Provide your product, capacity basis and available utilities to move from this selection framework to a project-specific datasheet.
TECHNICAL FAQ
If your question depends on the fruit, product or site, include the conditions in the enquiry rather than relying on a general answer.
Send a project enquiryNot always. It depends on the product specification and market. Some products benefit from recovered aroma; others accept the profile after concentration. The decision should be made before the evaporator scope is fixed.
That depends on the product definition, local rules and the process. Aroma recovery is more commonly associated with concentrate production. Any addition must be consistent with the product standard and labelling requirements.
Recovery depends on the volatile compounds, vapour conditions, column and condenser design. There is no universal percentage. Pilot or supplier data should be tied to the actual stream and product.
No. It can capture volatiles that would otherwise be lost, but it cannot correct poor fruit, incorrect maturity or process damage. Fruit selection and process control remain the foundation.
YOUR PRODUCT. YOUR PROCESS.
Tell us the product, the quantity basis and the packaging. We will work back through the process to the equipment scope.