2025-05-12
The preservation technology of green tea gunpowder tea DL022 is essentially a process of regulating the dynamic balance between its physical form and biochemical activity. As a green tea category that is withered at high temperature and mechanically rolled into dense particles, the compact structure of green tea gunpowder tea DL022 delays the oxidation process, but the micro-area activity of residual polyphenol oxidase inside still needs to be controlled through environmental isolation. The core of the preservation system is to build a closed system with low oxygen permeability, and use the electromagnetic shielding effect of metal-coated composite materials to block the photodegradation of chlorophyll by ultraviolet rays.
Humidity management relies on the gradient desorption mechanism of molecular sieve adsorbents, and the step-by-step stability of relative humidity is achieved by adjusting the ratio of silica gel with different pore sizes. Temperature control must follow the characteristics of enzyme activity, and phase change cold storage materials are used to buffer external thermal disturbances. The retention of volatile aroma components in green tea gunpowder tea DL022 requires the dual effects of physical adsorption and chemical bonding of nano-scale activated carbon fibers, and its porous structure captures terpenes in a directional manner.
The pressure-resistant packaging structure needs to adapt to the elastic deformation characteristics of granular tea, and negative pressure filling technology is used to reduce gas residue in the container. For the hydrophilic tea hairs remaining on the surface of green tea gunpowder tea DL022, the storage environment needs to maintain a critical humidity threshold, which not only inhibits mold growth but also avoids leaf embrittlement. The protection of photosensitive substances is achieved through the selective light transmittance curve of amber shading materials, shielding short-wave radiation below 400nm. Spatial isolation needs to consider the molecular penetration path of environmental odors, and a co-extruded barrier film is used to construct a multi-layer composite protective interface.
In long-term storage, the gas replacement of the microenvironment inside the package needs to be completed through an intelligent breathable membrane, and its gas permeability is dynamically adjusted with the internal and external pressure difference. The ultimate goal of this preservation system is to make the phenol-ammonia ratio of green tea gunpowder tea DL022 approach the optimal flavor balance point over time, rather than completely preventing the conversion of ingredients.