Resin for pomegranate processing
Pomegranate is rich in polyphenols; among them, punicalagin (an ellagitannin) is a high-value fraction for food, beverage, and ingredient applications. Pentafood pomegranate plants are engineered to recover and concentrate punicalagin from peels, turning a by-product into a valuable stream.
The process relies on highly selective adsorbent resin columns and automated cycle management (service and regeneration) to ensure repeatable performance and operational continuity.
Punicalagin is an ellagitannin mainly concentrated in the peel. It is sought after for the antioxidant profile of pomegranate extracts and for the possibility to produce standardized ingredients through extraction and purification processes.
The goal is a controlled process that supports quality targets while maintaining operational continuity.
Pentafood plants are PLC controlled across all phases, including processing, regeneration, and storage. Automation enables anomaly detection with local alarms and, where configured, remote notifications to support operational continuity.
Below are common applications. Each solution is engineered according to matrix, objectives, and line constraints, with defined targets and repeatable operation.
Peels are milled and mixed with water to obtain a liquid solution. This step supports mass transfer of phenolic fractions and helps stabilize downstream resin treatment.
Before adsorption, the solution is filtered to remove solid particles. This reduces clogging risk, improves repeatability and extends resin lifetime.
The core section includes two columns in series packed with a dedicated adsorbent resin that selectively retains punicalagin. The series layout enhances capture efficiency and supports an optimal balance between selectivity and throughput.
An additional upstream column filled with filtering media captures residual impurities, preventing fouling and helping preserve resin service life.
The plant is fully automatic: once started, it runs service and regeneration cycles autonomously according to engineered set-points. Automation reduces operator presence and supports batch-to-batch consistency.
Sizing is driven by the matrix, the process target and the outlet specification, plus production constraints and utility management. A correct sizing approach supports repeatability and operational continuity.
Punicalagin recovery can be paired with analytical controls (e.g., HPLC) to check inlet/outlet concentration and process repeatability, enabling more standardized extracts aligned with target specifications.
Punicalagin is a polyphenol belonging to ellagitannins and is mainly concentrated in pomegranate peels. That is why peel valorization is an effective route to recover the active fraction.
Peels are milled and mixed with water to form a liquid solution. Filtration then removes solids to stabilize operation and protect the resin columns.
A typical layout includes two adsorbent resin columns in series, plus an upstream filter-media column to retain impurities and reduce clogging risk. The configuration can be sized to required throughput and campaign volumes.
It captures residual impurities and particulates that could foul the resin bed and reduce performance, extending resin lifetime and minimizing downtime.
Plants are engineered for automatic operation: once started, they run service and regeneration cycles autonomously via PLC logic, reducing the need for constant supervision.
Analytical controls (e.g., HPLC) can be used on inlet/outlet samples to verify concentration and performance and to tune set-points and cycles to the target specification.
Key inputs include matrix data (moisture, particle size), solid/liquid ratio, flow rate and campaign volumes, impurity level, recovery/concentration targets, and utilities/integration constraints.
