Descriptions of "Fubon" Yeast Beta Glucan: 1. Yeast β glucan is derived from baker's yeast cell wall; 2. Functions: beta glucan serves as a biological response stimulator to set off immune defenses to fight against viral, bacterial, and fungal invaders; as a result it can help strengthening the immune system and enhance immunity of animals especially for creatures of aquaculture and improving animal performance and control diseases. Storage and Packaging of "Fubon" Yeast Beta Glucan: 1. Preservation: Store in a cool and dry place. 2. Packaging: 20KG paper bag with polyethylene liner. 3. Shelf life: 24 months in its original packaging. Physical Characteristics of "Fubon" Yeast Beta Glucan: Items Contents (per 100g) Color Pale yellow Odor Special yeast odor, no rotten and unpleasant smell Purity Without foreign substance Appearance Powder