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In a cold chain facility’s air, plant hormone ethylene and airborne microbes accumulate.

PureSpace’s technology effectively removes these contaminants who can quickly reduce fresh produce quality.

Plant hormone ethylene is a gas well known to cause color change, softening and rottening of fresh fruits and vegetables. Only trace amount exists in open air, however in a cold chain facility the level is higher. Because large amounts of produce are gathered in a closed area, ethylene level rises to a point where it can significantly impact the freshness of produce.

Comparing 0 ppb and 100 ppb ethylene environment, the latter brings an average of 30% decrease in produce shelf-time. But 100 ppb is commonly found in a cold chain facility – there are spaces with ethylene higher than 10,000 ppb. By maintaining the ethylene level to the minimum, we can improve produce freshness and reduce loss rate.

 

 
Ethylene Level: 10ppb
Ethylene Level: 1,000ppb
STRAWBERRY
Ethylene Level: 10ppb
Ethylene Level: 1,000ppb
PASSION FRUITS
Ethylene Level: 10ppb
Ethylene Level: 1,000ppb
BROCCOLI
Ethylene Level: 10ppb
Ethylene Level: 1,000ppb
SPINACH

Various produce exhibiting different freshness at 10 ppb and 1,000ppb ethylene.

PureSpace is obsessed in pushing our ethylene removal power to its limit. Currently the removal power is more than 50 times stronger than previous technologies – that’s why we are able to actually make a meaningful concentration difference at the field.

Purespace removes the high concentration of ethylene inside the cold chain and makes it the same as normal air Protects fresh food from excess accumulation of ethylene.

Therefore, it is possible to supply fresh fruits and vegetables in a similar state as immediately after harvest.

Also, fresh produce are exposed to airborne microbes in the storage area. And when a fruit or vegetable begins to grow mold, the surrounding produce are affected. PureSpace removes airborne microbes in the space so fresh produce can be delivered in a more fresh and safe environment.

Total bacteria count (before using PureSpace equipment)
Total bacteria count (after 1 day of using PureSpace equipment)
Total mold count (before using PureSpace equipment)
Total mold count (after 1 day of using PureSpace equipment)

A Purespace equipment uses nanocatalyst filter technology to effectively and safely remove ethylene and airborne microbes.

When air is taken into the equipment, ethylene and airborne microbes are removed through the first reaction. Then residues are removed through the second reaction.

By removing the ethylene effectively, we enable fresh produce to be supplied in clean air quality.