Clean Laser Equipment,Laser Paint Removal ,Adapt Laser Systems ,Laser Paint Stripping Skin Beauty Equipment Co., Ltd. , http://www.nblaserequipment.com
Coprinus comatus preservation technology
The physical and biochemical methods are used to treat the fresh mushrooms to lower their metabolic activity to a suitable temperature, maintain a relatively fresh state, and extend their shelf life. Common preservation methods include: 1. Modified atmosphere preservation: The main factors for fresh air conditioning are temperature, oxygen and carbon dioxide. The most suitable parameters are temperature 1°C, oxygen 2%-4%, and carbon dioxide 5%-8%. In the state, the respiration intensity of the mushroom body can be reduced, the oxygen consumption can be reduced, the oxygen enzyme activity can be suppressed, and the shelf life of the fresh mushroom can be prolonged. Atmosphere fresh-keeping machinery and spontaneous two. Mechanical atmosphere preservation is the use of vacuum, supplemental carbon dioxide or nitrogen, to reduce the oxygen content. Spontaneous atmosphere preservation is the use of the respiration of coprinus comatus, so that the oxygen concentration decreases and the carbon dioxide concentration increases. 2, low temperature preservation method: low temperature can inhibit the activity of enzymes in the body of fresh mushrooms, reduce respiratory metabolism, and inhibit other microbial activities. The practice is that after Coprinus comatus picking, as soon as possible pre-cooled stored in a temperature of 0-3 °C, relative humidity of 90% -95% of the stable environment, to achieve the purpose of preservation. 3, sulfite preservation method: the mushroom body immersed in 0.05% -0.1% sodium metabisulfite solution for 2-5 minutes, picked up drain residue, into the container, cool and stored. It is also possible to directly spray 0.15% sodium metabisulfite solution onto the mushroom body, requiring uniform spraying. Adding guanine or 6-phenyl adenine or benzimidazole at a concentration of 0.01% in the sodium metabisulfite solution has a better preservation effect. 4, salt preservation method: with a concentration of 0.6% -0.8% of salt water, soak fresh mushrooms for 20-30 minutes, picked up and drained into the container storage. Can extend the shelf life of 3-5 days. 5, ascorbic acid and citric acid preservation method: the mushroom body is soaked in 0.02% -0.05% ascorbic acid solution or 0.01% -0.02% citric acid solution, 15-20 minutes, picked up drain, into the container sealed, cool storage . It is also possible to spray 0.1% ascorbic acid directly on the mushrooms.