Controlled atmosphere storage is a system for holding produce in an atmosphere that differs substantially from normal air in respect to CO2 and O2 levels. Controlled atmosphere storage refers to the constant monitoring and adjustment of the CO2 and O2 levels within gas tight stores or containers. Controlled atmosphere (CA) storage involves maintaining an atmospheric composition that is different from air composition (about 78% N2, 21% O2, and 0.03% CO2); generally, O2 below 8% and CO2 above 1% are used. Control Atmosphere cold storage mainly used for long-term storage of perishable fruits. In this type of cold storage, apart from temperature concentration of oxygen, carbon dioxide, ethylene and nitrogen is maintain as per the requirement of the storage material.
The estimated annual production of fruits and vegetables in the country is about 130 million tonnes accounting to 18 per cent of our agricultural output. Moreover, the lack of cold storage and cold chain facilities are becoming major bottlenecks in tapping the vast potential. Govt. of India promoting cold storage warehouse investments by providing subsidies up to 50% to 75% on Investment. The nationalized banks of India are also proving loans for cold storage projects. In the recent time cabinet also approved the amount of 6000 crore rupees for mega food processing projects. The country requires 3.5 crore tonne capacity cold storage facilities and this is a right time for starting a business in cold storage.
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