Pollen is the male spore and provides all of the nutrients necessary for plant life as well as the precursors for plant sex hormones.Pollen is collected in the form of granular removed from the hind legs of returning bees. A great variety of pollen traps have been developed for this purpose. Most use two screens with 0.58mm diameter wires with 5 holes per 2.5cm that are separated by about 5mm. Other traps use perforated metal plates with about 4.7mm holes.The design of a pollen trap is crucial both to the effectiveness of collecting pollen and to the welfare of the colony. Bee collected pollen is not a uniform, distinct and easily characterized product. It consists of a blend of pollen grains derived from many plant species in a given locality. The problem of chemical analysis of pollen becomes even more difficult because plant pollen sources not only vary by locations throughout the world, but also by season and year in a given locality. The multi-flower bee pollen granular commonly consists of different kinds of bee pollen such as rape, buckwheat, Indian corn, sunflower, tea pollen etc. Different pollen has different color, for example, the rape pollen is light yellow, the buckwheat pollen is brown, the tea pollen is orange, etc. The distribution of each kind in the multi-flower bee pollen is naturally formed and unstable. The nutritional makeup of Bee Pollen is extremely broad spectrum. The wide range of nutrients found in bee pollen include polyphenols, enzymes, and beneficial fatty acids, free amino acids, vitamin complexes, chelated minerals and trace elements, as well as a large array of phytonutrients that have yet to be identified. This nutritional diversity makes Bee Pollen an ideal dietary supplement as a complement and boost to a well-rounded diet. Specification Sheet: Product Name: Rape Bee Pollen Origin: China Packing: 12.5KG/Polypropylene Bag, 2Bags(25KGS)/Carton Storage: Please store the product with sealed condition for it is easy to absorb the moisture. Shelf Life: 2 Years to be stored in a cool and dry place protected from sunlight. Appearance: Granule Color: Yellow Flavor & Odor: Characteristic Moisture: 7.00%MAX. Protein: 20.00%MIN. Impurity 1.00% MAX. Powder 2.00% MAX. Total Bacteria NMT 1000cfu/g Yeast & Mold NMT 100 cfu/g E.Coll. Negative Salmonella Negative