Raffinose Pentahydrate, Low Glucose (D-(+)-Raffinose, Melitrose)

Used as an alternate carbon source for wild-type yeast. Raffinose is a trisaccharide composed of galactose, glucose, and fructose. It can be found in beans, cabbage, brussels sprouts, broccoli, asparagus, other vegetables, and whole grains. Raffinose can be hydrolyzed to D-galactose and sucrose by the enzyme alpha-galactosidase (alpha-GAL), an enzyme not found in the human digestive tract. alpha-GAL also hydrolyzes other alpha-galactosides such as stachyose, verbascose, and galactinol, if present. The enzyme does not cleave beta-linked galactose, as in lactose. The raffinose family of oligosaccharides (RFOs) are alpha-galactosyl derivatives of sucrose, and the most common are the trisaccharide raffinose, the tetrasaccharide stachyose, and the pentasaccharide verbascose. RFOs are almost ubiquitous in the plant kingdom, being found in a large variety of seeds from many different families, and they rank second only to sucrose in abundance as soluble carbohydrates. , Synonyms:, D-(+)-Raffinose, Melitose, Melitriose, O-a-D-Galactopyranosyl-(1->6)-a-D-glucopyranosyl-ß-D-fructofuranoside, CAS No: 17629-30-0, Molecular Formula: C18H32O165H2O, Molecular Weight: 594.51, Appearance: White, crystalline powder, Purity: >98%, Glucose: <0.02%, Source: Gossypium hirsutum L. Identification (FTIR): Complies, Solubility (10%): Colorless, clear, complete after autoclaving, Loss on Drying: 13-17%, Residue on Ignition: 0.1%, Specific Rotation: +103° to +108°, Melting Point: 78-82°C, Heavy Metals: <0.001%, Lead (Pb): <0.0002%, Arsenic (As): <0.0002%, Important Note: , This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures., , Meets or Exceeds USP/NF Specifications