Fruit Juice

Graver Technologies provides filtration products for the production of fruit juice in order provide clarity without compromising nutritional value, color, flavor or aroma.

Innovative Technologies for Juice Production

Manufacturers of fruit juice require an effective method to clarify high solids and complex juice products without nutritional loss, vitamin loss, loss of color, flavor, or aroma. Traditional processes can result in a significant loss of product, require the use of filter aids or enzymatic processes, or use long-term retention in the tank to settle the solids that further lead to juice deterioration. Membrane filtration can be used to replace the traditional clarification while yielding high recovery with excellent quality at low operational costs. The presence of insoluble matter such as pectin, starch, or cellular material can result in membrane fouling and therefore a robust membrane technology is necessary for sustained production capability. Further processing may be required to remove components that contribute to off-flavor or aroma, quite often using a carbon-based adsorbent.

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About Graver's Products For Fruit Juice

General Particle control to remove agglomerates, deformable particles and other insoluble materials
Bioburden reduction to improve shelf life
Final membrane filter protection- Elimination of objectional taste and odor compounds

Product Selection

Ecosorb - for decolorization and for the elimination of objectional taste and odor compounds
PMA™, PMC™, QMC™ - for general particle control and membrane protection- ZTEC™ WB 0.2 micron for microbial stabilization
Scepter® - Stainless Steel crossflow for high solids removal

Frequenty Asked Questions

How often should gas turbine filters be replaced?

This depends on the environment and filter type; however, pre-filters are changed every 3–6 months, while final filters may bechanged once in a year or two. Monitoring pressure drop is key to determiningreplacement timing.

What factors affect the operating life of a gas turbine filter?

Here are some factors:

Ambient dustand pollution levels
Operatinghours and load
Pulse-cleaningfrequency, depending on the type
Humidity andmoisture
Filter mediaand design

How do I know when a filter needs to be changed?

Differential pressure across the filter is animportant aspect in this case. If it increases beyond the set threshold, thefilter may be clogged or need cleaning or replacement.

What is pressure drop and why does it matter?

Pressure drop is the resistance to airflow through afilter. A high-pressure drop reduces turbine efficiency and increases energycosts. Selecting low-resistance filters helps improve performance.