It is reported that the Fujian Institute of Fruit Science and Technology Institute's "Spontaneous Modified Atmosphere (MAP) preservation technology" passed expert appraisal. The technology has low preservation cost, easy operation, and practical technology, and can be used for mid-term preservation and long-distance transportation of earthworms.
According to the main researcher He Zhigang, the MAP fresh-keeping technology is a new technology that spontaneously adjusts the atmosphere and maintains fresh air by spontaneously adjusting oxygen and carbon dioxide concentrations and humidity in the membrane through the breathability of the membrane and the respiration of the fruit. The research group investigated the post-harvest physiology of sugar and acid and other quality problems during the storage of earthworms. According to the air permeability of the packaging film and the storage characteristics of the earthworm, the thickness of the film material, the area of ​​air permeability, the fruit loading, and the maturity of the harvest were studied. The study identified relevant technical parameters and compiled technical regulations. Experiments show that after 43 days of storage, it still has good quality and the rate of good fruit is above 95%.