China cold chain tech may help Pakistan reduce loss of agri products

China’s cold chain technology may help Pakistan reduce loss of agricultural products and increase the added value, said Chen Lin, vice president of Hefei Lianhui Refrigeration Equipment Co., Ltd.

In recent years, Pakistan has made breakthroughs in the export of mangoes and citrus fruits to China. Chen Lin gave an air conditioning fresh-keeping technology solution to resolve the preservation problems due to month-long shipping cycle.

Chen Lin said that mangoes and oranges could be stored for about three months, cherries for 45 days, kiwifruits for six months, apples for 3-6 months, and bayberries for about 30 days.

The extension of storage period also brings higher added value. Fruits with higher added value, such as cherries, kiwifruits and golden pears, can be sold at higher prices when stored off-season.

After picking, fruits cannot be directly put into the cold storage warehouse, they must be precooled at 0-5 h°C. “When the fruits are picked, they have residual heat,” Chen said, if they are immediately taken to a cold storage warehouse, the surface temperature drops, but the central temperature does not, this may lead to spoilage in fruits because they are not precooled properly. Cherries, kiwifruits and blueberries all need to be precooled.

According to Chen, not only fruits, but also vegetables can benefit from quick freezing technology. Broccoli, lentils, peas, wax gourd and pumpkin can be frozen quickly.



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