The present invention relates to compositions of chemically purified soluble mannan from seeds of legumes (e.g., Serratonia siliqua, Sedalinia spinosa, Trigonel hornum-gravure and Cyanoboxystetra-gonolobus ) and compositions of tasty dietary supplements . <; / RTI >; In the fractionation process, environmental impurities such as high quality physiological solubility, chemically modified and purified uniform size polysaccharide fibers, natural impurities such as proteins, alkaloids, glycoalkaloids, and / or heavy metals, agricultural residues and microbial toxins Is provided. This process provides hypoallergenic dietary fiber free of any potential allergens, cytotoxins and gastrointestinal toxins. Refers to a sequential process of assembling soluble fibers having a plurality of molecular weights to generate a time-controlled dissolution of high-functionality and low molecular weight fibers to improve solubility and palatability with improved dietary performance in oral and gastrointestinal systems.Mevcut açıklama, saflaştırılmış polisakarit kompozisyonlarının ait olduğu alan ile ilgilidir. Daha spesifik olarak, mevcut açıklama, gıdaların karbonhidrat glisemik indeksini düşürmek ve kan glukoz seviye artışlarını hafifletmek için kompozisyonların ekstrakte edilmesi ve saflaştırılması ile ilgilidir.