The bark fermentation and cultivation medium technology is known for its lightweight nature, high water retention, rich organic matter content, a high carbon-to-nitrogen ratio (C/N), and a slightly acidic pH ranging from 4.2 to 4.5. Pine bark typically has a C/N ratio of around 135:1, while coniferous bark can range between 150:1 and 300:1. Notably, L. bark can have an extremely high C/N ratio of up to 494:1. Its total carbon content is approximately 54.3%, while total nitrogen is only about 0.11%. In addition to cellulose, hemicellulose, and lignin, the bark also contains harmful substances such as carbonic acid, acetic anhydride, and polymer wood acids—commonly referred to as soft resins. Due to its strong antibacterial properties and resistance to moisture absorption, bark is not easily decomposed or fermented, making it one of the more challenging organic materials to process. However, with the use of Golden Bark fermentation additives, this issue can be effectively addressed.
To begin the preparation process:
1. Start with 1 cubic meter (approximately 0.5 tons) of bark, along with 25 kilograms of dry chicken manure or livestock manure, 5 to 10 kilograms of urea or thiamine, and 0.5 to 1 kilogram of lime.
2. Mix the manure with urea and thiamine into the bark material to reduce the C/N ratio to below 40.
3. Since coniferous bark is highly acidic, add an appropriate amount of lime to adjust the pH to between 5 and 5.5.
4. Water the mixture and turn it over for 2 to 3 days to achieve a moisture content of around 50%.
5. Mix 1 kg of Golden Bark fermentation additive with 2.5 kg of rice bran, then evenly sprinkle this mixture onto the bark. Thoroughly mix the material to ensure even distribution of the bacterial culture. This step is known as "inoculation." After inoculation, pile the material into large heaps, cover them, and let them sit for 6 to 12 hours to allow the bacterial agents to fully penetrate the bark.
For the fermentation process:
6. Once the pretreatment is complete, pile the material into heaps that are 1 to 1.5 meters high and cover them to maintain heat and moisture.
7. The first fermentation phase lasts 25 to 30 days. During this time, ensure proper insulation and moisture levels to promote saccharification. After 5 to 7 days, the temperature should rise to 45–50°C, and white mycelium may appear on the surface. If no change occurs after two days, flip the pile and continue fermentation until the accumulated temperature reaches 800–900°C. At this point, proceed to the second fermentation stage.
8. In the second phase, maintain a moisture level of around 60%. If necessary, spray a 5% urea solution to rehydrate the material and increase the pile height before continuing. Fermentation continues until the temperature reaches 65°C. After three weeks at 60°C, and once the accumulated temperature reaches 800–1000°C, the fermentation process is considered complete.
The functional microorganisms in the Golden Bark fermentation additive will thoroughly break down the bark, eliminating harmful compounds like carbonic acid and citric acid that can negatively affect plant growth. This significantly improves the physical properties, commercial value, and economic benefits of the final product.
After fermentation, the material is spread out in layers about 10 cm thick and dried until the moisture content drops to around 40%. It is then sieved using different mesh sizes based on customer requirements and packaged accordingly. The finished product should be stored in a dry and well-ventilated area for optimal quality.
Skin Scrubber,Skin Care Scrubber,Best Skin Scrubber,Ultrasonic Skin Scrubber
Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizon.com