About the storage of horticultural crops using the advanced technology.Various methods of storage includes: cold storage,controlled atmospheric storage, modified atmospheric storage.
2. COLD STORAGE:
• Storage at the
temperature lower
than ambient
temperature
• The fruits stored at
low temperature
exhibit more shelf
life than those
stored at ambient
temperature.
4. 3. MODIFIED ATMOSPHERE STORAGE
SYSTEM:
• Modified
atmosphere is the
practice of modifying the
composition of the
internal atmosphere of
a package (commonly
food packages, drugs,
etc.) in order to improve
the shelf life.
• The need for this
technology for food arises
from the short shelf life
of food products such as
meat, fish, poultry, and
dairy in the presence of
oxygen.
5. 4.ATMOSPHERIC (HYPOBARIC
STORAGE)
• In this type storage life of several fruits and
vegetables is increased significantly by reduced
pressure under refrigeration, subsequently
decreasing respiration and evacuation of
ethylene given out by the produce.
6. 5. LOW COST STORAGE
• Pusa zero energy cool
chamber (pusa ZECC) can
be constructed easily
anywhere with locally
available materials like
bricks, sand, bamboo,
khaskhas/straw, gunny
bags, etc. with a source of
water.
7. The main advantages:
➢It does not require any electricity or power to operate
➢Materials required like bricks, sand, bamboo etc. available
easily and cheaply.
➢It is a double brick-wall structure, structure, the cavity is filled
with sand and walls of the chamber are soaked in water.
➢ Even unskilled labour can build the chamber, as it does not
require any specialized skill.
➢Cool chambers can reduce temperature by 10-15 degree C and
maintain high humidity of about 95% that can increase shelf life
and retain quality of horticultural produce.
➢ Small and marginal farmers can store a few days' harvest to
avoid middlemen.
➢ Technology Vision 2020 has identified it as a low cost storage
technology for 2020.
➢National Horticulture Board is giving 100% grant in aid for the
benefit of the farmer.
8.
9. Construction:
• Select an-upland having a nearby source of water
supply.
• Make floor with brick 165 cm x 115 cm.
• Erect the double wall to a height of 67.5 cm leaving a
cavity of 7.5 cm.
• Drench the chamber with water. Soak the fine river
bed sand with water.
• Fill the 7.5 cm cavity between the double walls with
this wet sand.
• Make top cover with bamboo (165 cm x115 cm ) frame
and 'sirki' straw or dry grass.
• At hatch/ tin shed made over chamber to protect from
direct sun or rain or snow.
