First, the harvest can be harvested twice a year. For the first time in the middle or late June, the breeding stock that has been breeding for two seasons will be sold out for processing; the second time will be in mid-late September. There are several methods for catching otters, and in addition to using net catches, the following four simple methods can be used.
1. Bamboo sieve collection method: Use bamboo sieve to wrap gauze, plastic net bag, put animal blood or animal internal organs in the middle, then bundle it with bamboo basket, put it in pond, lake, reservoir, rice field, and put bamboo off the next day. Sieves can be caught on the leeches.
2. Bamboo Slip Collection Method: The bamboo tube should be split in half, the animal blood should be painted on the middle, and the bamboo tube should be restored and put into paddy fields, ponds, lakes, etc. The water can be collected the next day.
3. Loofah trapping method: The dry loofah invades the blood of the animal and absorbs it. Then it is dried (baked) and dried with bamboo sticks and put into paddy fields, ponds, and lakes. The next day, the loofah will be picked up and it will shake off many leeches. .
4. Grasping the grass: first dry the straw and tie it into two tightly closed grass handles. Inject the animal blood into the straw and place it across the inlet of the pond. Let the water flow into the pond for 4 to 5 hours. Remove the straw handle and collect the water frog.
Second, processing 1. Sun drying method: the leeches with a string or wire to wear, hanging in the sun exposure, drying can be.
2. Water-scalding method: Wash the blisters into the basin, pour boiling water, hot water immersed blisters 3 cm is appropriate, 20 minutes after the hot water blisters will be removed and dried. If you don't get hot for the first time, you can do it again.
3. Alkali-burning method: Place the leeches and edible alkali powder into the utensils at the same time, turn the blisters up and down, knead while turning, and then wash and dry after shrinking.
4. The method of burying the ash: The leeches shall be buried in lime for 20 minutes. After the water is smashed, the lime shall be sieved, washed with water, dried and dried. The leeches can also be buried in the ash, and after 30 minutes until the water is dying, the ash is screened, washed and dried.
5. Smoke burying method: The leeches shall be buried in the tobacco for about 30 minutes. After they die, they shall be washed and dried.
6. Wine boring method: Pour the wine into a container filled with leeches, submerge it, seal it for 30 minutes, remove it after drunk and then wash it with clean water and dry it.
7. Salt method: Put the leeches into the vessel and put a layer of salt on it until the vessel is full. Salted leeches can be dried in the sun.
8. Spreading method: In a cool and ventilated place, the water fleas that are killed should be distributed on clean bamboo rakes, straw curtains, cement boards, wooden boards, etc., and dried.
9. Drying method: Those who have conditions can wash the washed leeches and dry them at low temperature (70°C).
The quality of the process determines the price of the water bottle. After processing, the product leeches should be flat and spindle-shaped, with slightly flattened ventral surface on the back, brittle and brittle, and a gum-like luster on the cross-section, with a dark brown color. Dry leeches are prone to moisture, moisture, and insects. They should be put in cloth bags, covered with plastic bags, and hung in a dry, ventilated place for sale.
Hyaluronic Acid Eye Drops Sodium Hyaluronate (HA), Pure Hyaluronic Acid could be used in eye surgery, such as Hyaluronic Acid Eye Drops, corneal transplantation, cataract surgery, glaucoma surgery, and surgery to repair retinal detachment.
Eye Drop Grade Hyaluronic Acid Powder is an important component of intercellular substance, eye vitreous body, joint fluid and other connective tissue. It acts the important physiologic roles in holding body's moisture, maintaining extracellular space, adjusting osmotic pressure, lubricating and promoting cells to repair in the body. Sodium Hyaluronate can be used as viscoelastic agent inintraocular lens implantation operation, as the filler in the osteoarthritis and rheumatoid arthritis and otherjoint surgery, as a medium widely used in eye drops, it also can be used to prevent postoperative adhesion and facilitate the wound heal. The compounds formed by the reaction of Sodium Hyaluronate with other drugs play a drug release effect role, thus achieve the purpose of drug targeted and time controlled release.
With the development of medical technology, Sodium Hyaluronate has been more and more widely used in medical applications. In 1976, Sodium Hyaluronate was first commercialized and used as ophthalmic viscoelastic agents, which is a significant progress in the ophthalmic industry. In 1987, Sodium Hyaluronate for intra-articular injection came in to the market. In 1990s, the large-scale production of Sodium Hyaluronate by fermentation made the cost lower, thus products containing Sodium Hyaluronate such as eye-drops, dermal fillers and other Sodium Hyaluronate preparations started to be used extensively.
Specification
|
Test Items |
Standard |
|
Appearance |
White powder |
|
Hyaluronic acid |
≥95% |
|
Molecular weight |
≥2.0 X 106 Da |
|
PH |
6.0-7.5 |
|
Loss on drying |
≤10% |
|
Protein |
≤0.08% |
|
Nitrogen |
3.0%-4.0% |
|
Heavy metal |
≤10ppm |
|
Bacterial counts |
≤80cfu/g |
|
Mold and Yeast |
≤10cfu/g |
|
Sterile Test |
Complies |
|
Shelf Life |
Two Years |
|
Conclusion |
The results meet the standard |
Eye Drop Grade Hyaluronic Acid Powder
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