Willow extract
20 mg vial of freeze-dried Willow extract.
Description
Freeze dried extract of Willow (Salix Caprea) pollen. S. Caprea, also known as the Goat Willow or Great Sallow, is a species of willow that is commonly found throughout Europe and in parts of western and central Asia. It is a deciduous shrub or small tree, growing to a height of about 8-10 meters (or 26-33 feet). The bark of the Goat Willow is smooth and greyish-brown in color, and the leaves are oval-shaped and have a serrated edge. The plant produces catkins, which are long, cylindrical clusters of small flowers that appear in early spring before the leaves emerge. The male catkins are yellow in color and the female catkins are greenish-yellow.
Raw material was cultivated in Middle Europe by collecting branches of trees and put in a greenhouse until the inflorescences matured. After maturing the inflorescences were collected, sieved and extracted with acetone. The pollen have been extracted followed by filtration. They have been freeze dried after dialysis. Each product will be delivered with a certificate of analysis. If you want to receive a certificate of analysis before ordering please let us know.
Additional information
Pollen is one of the most common triggers of seasonal allergies worldwide. Depending on the season, weeds, grasses and trees release pollen to fertilize their own species. The wind travels the tiny and light pollen but unfortunately they end up in our noses, eyes and lungs as well. With their powdery, granular appearance they look quite delicate and innocent. In some people they will however trigger an allergic reaction. We mostly relate to this as hay fever. Most common symptoms are a runny nose, sneezing, itchy eyes but sometimes also symptoms of the lower airways (asthma). In allergy-prone individuals, their immune system reacts to allergenic proteins by generation of IgE antibodies, a process called sensitization. These antibodies will bind to receptors on mast cells and basophils, the effector cells of allergic diseases. If a pollen-sensitized person then gets exposed in pollen season, these effector cells release various mediators such as histamine. These mediators together are at the basis of starting off the allergic symptoms.
Available vials
20 mg freeze dried extract
Applications
Freeze dried Willow extract can be used for applications such as:
- As a diagnostic marker
- Induce allergy in an animal model
- Investigate the development of pollen allergy
- Develop a therapy against pollen allergy
Additional information
| Size | 20 mg |
|---|
Freeze-dried
Our material will be delivered in freeze-dried (lyophilized) form in different sizes so you always have the right amount available and you are assured of stable material.
Defined
Because of our quality system we produce high quality allergen extracts. Our products will be delivered with a certificate that specifies the amount of allergens, level of endotoxin and much more.
Customization
On request we can customize products for you. Please contact us for any specific requests or collaborations.
Woldwide delivery
Our products are used by researchers and diagnostic companies all over the world. We ship our products with FedEx to your country of choice.
Large batches
We produce large batches so you are assured of material from the same batch over a longer period of time. You can even make a reservation for material from a specific lot.
