These are products made from natural ingredients. It is desirable to retain
as many of the natural properties and qualities in the final powder as
possible. This can be done for some products, but for others a recipe must be
made containing additional carriers, antioxidants, pH-stabilizers and so
forth.
JUICE:
Juice is a quality name and can only be used
to describe a reconstituted powder if the powder contains a maximum of 3%
additives, such as sucrose on solid base. Real juice powder is made when a high
concentration of natural fibres remains in the juice. This has only been
possible for a few juices. The dryer for these powders is the FILTERMAT®.
Several juices has been dried to a powder as a flavour product where the
concentrated juices or single strength juices are mixed into a flavour base
made from e.g. maltodextrin, sugar and gum arabic. The reconstituted powders
with this recipe are not real 'juices'. These powders can often be dried on
conventional spray dryers, multistage dryers, or the FILTERMAT®.
FRUIT:
The pulp or paste from many fruits and berries are strained
to be freed from skin, seeds and long fibres to create a paste which can be
spray dried in this pure state, or with only a limited addition of carrier.
Many of these powders will give reconstituted products very close to the
original paste in respect to retaining the natural properties like colour,
flavour, taste and texture. The FILTERMAT® will be the most attractive dryer
for production of high-quality powders from these fruit and berry pastes.
TOMATO:
This is a special fruit which is spray dried in large
amounts from a concentrated paste. The powder is made from Hot Break paste or
Cold Break paste. The paste used is strained free of skin, seeds and long
fibres, and is concentrated to a maximum of 45 °Brix for Hot Break and 50 °Brix
for Cold Break. Niro has developed a special tomato spray dryer, which is the
most used tomato dryer worldwide. We have also developed the technology for the
drying of tomato paste on the FILTERMAT®. The tomato powder can be made without
the used of any additives on the Niro dryers.
VEGETABLES:
Vegetables can be spray dried when they exist as
juice or a paste, as described above. The amount of carrier used for the juices
will normally be less than for the fruit juices, due to vegetable juice
composition. The filtered and concentrated juices are normally dried as
flavours, and are mostly dried on conventional dryers and multistage dryers.
The pastes which are strained free of skin and long fibres will normally be
concentrated, and yield very good products when dried on the FILTERMAT® dryer.
These products can normally be dried without additives, typically resulting in
high-quality products which can compete easily with freeze dried powders.
MARKET:
Niro has experience with spray drying juices and paste
from a very large range of fruits, berries and vegetables. We are the single
largest supplier of tomato dryers and FILTERMAT® dryers.
The capacity ranges between 50 - 800 kg final powder per hour, depending on
product.
Our dryers are designed to fulfill the very strict quality requirements
demanded by the food industry, and can even be delivered as validated
installations.