Pectin is a polysaccharide extracted from a variety of fruits. It is used as a thickener and gelling agent in a variety of foods, including jelly, jam, jam and other preserves- rise

Let's learn about pectin dispersion production equipment, dispersion shear emulsifying machine and solutions.

Pectin production process

In a typical manufacturing process, the pectin solution is prepared separately and added to the jelly after dispersion and hydration are completed- A typical dispersion process is as follows:

The treatment vessel contains water heated to (60 - 80 ° C).

The agitator is started.

Pectin is sometimes premixed and dried with another powdery component, such as sugar, usually 1 part pectin to 3 parts sugar. This reduces caking by separating the grains

And the pectin was "weighted" to prevent it from floating on the water.

Alternatively, pectin may be pre dispersed into a liquid such as syrup.

Pectin is gradually added to the vortex generated by the stirrer.

Mixing is continued after pectin dispersion to complete hydration.

The product can be maintained at 140 ° fi for up to 4 hours, but it may degrade after 1 hour at higher temperature. The product should be used immediately.

Sometimes the solution is filtered before the jelly is added.

Several problems in the production of traditional dispersion mixer

Using a conventional dispersion mixer to disperse glue and thickener (if glue) causes several problems:

It is easy to form lumps. Pectin particles remain insoluble in the mass. The traditional stainless steel mixing tank can not produce enough shear force to properly disperse the particles

Particles or rapidly decomposing agglomerates.

It is difficult to obtain the potential total output using the traditional method, and it is easy to form the loss and waste of raw materials.

In order to reduce caking, the powder must be added very carefully.

Dry premixing of powder components increases labor costs and processing time.

-Once the viscosity begins to increase, the stirring of the solution and therefore the dispersion of the powder becomes more and more difficult.

A long mixing time is required to complete the dispersion / hydration.

Filtering the solution with poor dispersion will greatly increase the treatment time.

Part of the hydrated pectin removed in the filtration process is wasted, which increases the cost and reduces the product quality.

Undissolved pectin will be gradually hydrated during storage or subsequent processing, resulting in undesirable changes in product viscosity.

Solution

Phase I

Pectin is added to water and dispersed by a stirrer in a stainless steel stirring tank. The high-speed rotation of the rotor blades of the high shear homogenizer at the bottom generates a strong suction force, which will

Water and pectin particles are sucked into the working head.

Phase II

The material is strongly sheared in a limited area of the working head. The agglomerates are decomposed in the gap between the rotor blade and the stator wall, so that the pectin area becomes larger and larger

Exposed to the surrounding liquid.

Phase III

The product is pushed out of the stator and returned to the container through the pump line mixer. Fresh material is sucked into the working head at the same time. In a very short mixing period through the circulation pipeline

All materials pass through the working head and enter the circulating pipeline rapidly and repeatedly, accelerating the hydration process.

Advantages of Yikai high shear emulsifying machine

Depending on the concentration and viscosity of the final product, the solution can be obtained at ambient temperature

No caking and mixing

Dry premixing is not required.

The rapid powder absorption rate minimizes operator errors.

The production of pectin is maximized to obtain sufficient thickening / gelling effect.

The filtering phase can be cancelled or the filtering time can be greatly reduced if necessary.

Stable viscosity of the final product.

Consistent product quality and repeatability.

Fast mixing time.