Diapositiva 1

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• TORNADO
• Rapid Pre-cooling System for fresh crops
• All fresh horticultural crops are living
  organisms, even after the
• harvest and they remain alive until they are
  consumed.
• The necessary energy to continue this cycle of
  life is called
• respiration.
• During this phase the product produces heat
  raising the
• temperature and priming all the events of aging
  of the product.
• The research confirms that lowering the
  respiration rate, as
• fast as possible, after harvest, is essential to
  preserve the
• quality of the fresh products.
• A proper precooling preserves product quality by
  inhibiting
• the growth of decay producing microorganisms,
  restricting
• enzymatic and respiratory activity, inhibiting
  water loss, and
• reducing ethylene production (Hardenburg et al.
  1986)

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• The System is designed to control the temperature
  with a difference
• 0,5C between the pulp temperature and air one.
• If compared to the other systems the
  "Hidrocooling" or the Vacum", the Forced
• Air cooling is one of the most economic methods
  that quickly remove the field
• heat.

Where is placed The System "M-FAC1" is used
inside The most common cold rooms, with extreme
simplicity. What it does A powerful fan
pulls the cold air from the cold room crossing
the product, allowing to get a perfect cooling
in rapid times - 1/3 in comparison to the common
cold rooms where the product is simply positioned
and slowly and not uniformly cooled, through a
light contact with cold air.
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• Description of the Process
• 1. Placing the product and the machine
• The product, prepared on palletts or bins, is
  placed on two parallel
• rows distant around 50 cm from each other. A
  corridor forms
• among
• the two rows of palletts disposed as mentioned
  above, as long as
• the length of the rows.
• The machine is positioned to one of the two
  extremities of the
• "corridor", leaning it to the palletts, leaving
  the mouth of
• aspiration
• at the center of the corridor.
• At the top of the machine is placed a tarp that
  will be unrolled on
• the palletts for the whole length of the
  corridor, so to create a
• tunnel.
• This operation will take a couple of minutes.
• The machine is ready to work.

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• 2. Working
• A centrifugal elettro-fan, calibrated to the
  dimension of the cold room and
• to the palletts of product to be treated, is
  assembled inside of each unit.
• Turned on the fan the cold air is pulled by the
  environment, crossing the
• product placed on the palletts or bins and
  reaching the corridor.
• Rapid and uniform cooling results, from the
  forced-convective contact of
• the high-speed, refrigerated air with the warm
  produce.
• As told before, the pulp-probe inserted inside
  the product, will constantly
• control the variation of temperature, and when
  the pulp reaches the setted
• temperature, the fan will stop restarting as soon
  as the temperature will
• rise again.
• This is an absolute innovation!
• This cooling phase happens with a very rapid
  time, around 3 hours
• against the common cold rooms that would employ
  at least 9
• hours.

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• Highly perishable products.
• The cooling of the products through Forced Air is
  an easy application
• extensible to varied fresh horticultural crops.
  Nevertheless, some products
• have an higher intensity of respiration after
  harvest and, consequently, a
• notable water loss.
• In the following chart some typologies of
  products are exemplified

• Note Times changes beeing in relation to the
  entry temperature of the product, to the kind of
  pakging, to
• the cold plant and to other things.
• Preserving the Quality and reducing the scart
  during the
• marketing of fresh crops.
• To prevent the cooling stress and curb an ample
  range of fisio-pathological
• alterations during the refrigeration, is
  advisable effect a rapid pre-cooling
• for some perishable products, so to increase the
  resistance to infections and
• to decrease the intensity of respiration and
  transpiration

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Tab. 6/bis indications of the phisio-pathological
thermal threshold and sensibility to the
ethylene
TECHNICAL DATA Feeling Tension 380V RST N
Ground Power medium absorber 1500W Measures in
cm 80 x 57 x 245
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DOMENICO BRANCATO by Francesco Brancato Co. snc
Zona Industriale ASI lotto 40/D1 98129 Larderia
Messina - ITALY Phone [phone] Fax 090
7381184 e-mail dobran_at_tiscali.it
WWW.BRANCATO.IT