Oligosaccharides

<p>Difucosyl (1-2,1-2)-iso-lacto-N-octaose (DFiLNO (1-2,1-2)) is an oligosaccharide that is found in human milk</p>

<p>CO2-philic compound; used in pharmaceuticals and CO2-based processes</p>

<p>Fructo-octasaccharide (FOS) is a synthetic, high-purity carbohydrate that is used in the production of various food and beverage products. FOS is produced by enzymatic synthesis from sucrose and has been modified to include a fluorination step. FOS can be used as a sugar substitute and is found in many foods such as breads, beverages, yogurt, ice cream, candy, and chewing gum. FOS has been shown to stimulate the growth of beneficial bacteria in the gastrointestinal tract and may help promote healthy digestion.</p>

<p>Produced from high maltose syrup by treatment with transglucosidase</p>

<p>GM2 ganglioside (sodium salt) has a core trisaccharide structure (GalNAcβ1,4Galβ1,4Glc) with sialic acid linked α2,3 to the central galactose residue and ceramide linked β to position 1 on the reducing terminal glucose residue (Ledeen, 2009). GM2 ganglioside is present on neuronal cells and plays a key role in the regulation of dendritogenesis in cortical pyramidal neurons. In lysosomal storage disorders, such as, Tay-Sachs and Sandhoff disease, where hexosaminases A and B are deficient, GM2 ganglioside accumulates in the nervous system (Cachon-Gonzalez, 2018). GM2 ganglioside is also overexpressed in melanomas and other tumours of neuro-ecto origin (Yoshida, 2020). Moreover, the sugar moiety of the GM2 ganglioside is a receptor allowing the viral infection of cells with reovirus and rotavirus (Zhu, 2018).</p>

Melezitose is a non-reducing trisaccharide that is produced by many plant sap-consuming insects, such as aphids (e.g. Cinara pilicornis).  Melezitose is a component of honeydew which acts as an attractant for ants and also as food for bees. Partial hydrolysis of melizitose releases glucose and turanose, an isomer of sucrose.

<p>Gala1-3Galb1-3GlcNAc-HSA is a synthetic glycosylation product of Galactose, Glucose and Galactosamine with Hexose. It is a complex carbohydrate that can be used to modify proteins with the sugar group. The sugar group is synthesized by the Click modification of a monosaccharide and then methylated. The sugar group is attached to HSA via an N-acetylhexosamine linker. This product has been shown to have high purity and can be used in many applications such as fluorination, methylation, click modification, or complex carbohydrate research.</p>

<p>Lewis B pentasaccharide is a custom-synthesized carbohydrate that belongs to the Modification, saccharide, Oligosaccharide, sugar category. It is an oligosaccharide with a non-reducing end and a reducing end. Lewis B pentasaccharide is a complex carbohydrate that is synthesized from monosaccharides by glycosylation and methylation reactions. This product has high purity and it can be used in research for its fluoroquinolone resistance properties.</p>

<p>Lividamine is a protein synthesis inhibitor that has biphasic responses in animal studies. Lividamine inhibits the enzyme catalysis of aminoglycosides, which are used for the treatment of bacterial infections. It also blocks the biosynthesis of polypeptides, which are essential for cell growth and division. Lividamine binds to the hydroxyl group or carboxylate group on an amino acid, cleaving it from the peptide chain and stopping protein synthesis. Lividamine has been shown to be effective against bacteria in vitro assays. Further research is required to determine its clinical properties.</p>

<p>GD1b oligosaccharide (shown as ammonium salt) is the carbohydrate moiety in one of the major gangliosides in neuronal and glial membranes; it has a core tetrasaccharide structure (Galβ1,3GalNAcβ1,4Galβ1,4Glc) with its two sialic acids linked α2,3/α2,8 to the inner galactose residue (Ledeen, 2009). GD1b ganglioside acts as a receptor for BK virus as well as for heat-labile LTII-a toxin, produced by enteropathogenic E. coli. GD1b ganglioside also interacts with tetanus neurotoxin (TeNT) and is crucial for its entry into cells (Kolter, 2012). The functional significance of ammonia in the brain is not yet fully understood. However, NH4 + stimulates Na+, K+ activated ATPase causing stabilization of the neuronal membranes of which gangliosides are major structural components. Further, ammonia is known to inhibit lysosomal enzymes which include enzymes degrading gangliosides (Modi, 1994).</p>

<p>Fructodecasaccharide is a methylated, custom-synthesized oligosaccharide that is a polysaccharide with the molecular formula C10H17O11. Fructodecasaccharide is a complex carbohydrate that consists of a monosaccharide and two disaccharides. It has been modified to include fluorine atoms in the glycosidic linkages between the sugar residues. This modification can alter the physical properties of fructodecasaccharide, such as increasing its solubility and stabilizing its structure. Fructodecasaccharide is used in many industries as a high-purity, synthetic product for use in medical applications, including pharmaceuticals and cosmetics.</p>

<p>Complex glucan (a 1-6) from Leuconostoc spp.; extender in blood transfusions</p>

Ex starch-partial hydrolysis,food ingredient, moderatly sweet, easily digested

<p>Tri-guluronic acid sodium salt (1,4-linked α-L-sodium guluronotriose) is one of a number of oligosaccharides obtained from alginate which is a polysaccharide in brown seaweeds containing: blocks of repeating mannuronic acid sequences (M-M-M-M etc), repeating guluronic acid sequences (G-G-G-G etc), and alternating M-G-M-G sequences. This oligosaccharide can be released by acid hydrolysis (Shimokawa, 1996) and a number of biological activities have been discussed in a recent review (Xing, 2020).</p>

<p>Glycosaminoglycans (GAGs) are polysaccharides that are found in the extracellular matrix and on the surface of cells. GAGs consist of a linear chain of repeating disaccharide units, with one or more sugar molecules linked by a glycosidic bond. They have been shown to be important for the function and structure of tissues, including those in the gastrointestinal tract. GAGs have been shown to stimulate cellular growth, regulate inflammatory responses, and promote wound healing. They have also been shown to inhibit activity of polymorphonuclear leucocytes (PMN), which play an important role in inflammation. One type of GAG is dextran sulfate, which has been used as a biological scaffold for tissue engineering applications. Glycosaminoglycans may also play a role in regulating immune responses through interaction with toll-like receptor 4 (TLR4).</p>

<p>Lewis Y-PAA-biotin is a complex carbohydrate which is synthesized using Click chemistry. This compound has been modified to include a biotin moiety. Lewis Y-PAA-biotin has been shown to be resistant to enzymatic degradation and can be used as a saccharide in the synthesis of polysaccharides. Lewis Y-PAA-biotin is synthesized by attaching poly(acrylamide) (PAA) chains to the sugar moieties of Lewis Y. The carbonyl group on the PAA chains can be fluorinated, which makes it useful for click modification reactions with fluorinated compounds.</p>

<p>Asialylated glycosphingolipid and precursor for ganglioside biosynthesis. The compound is a major glycosphingolipid in human neutrophils and is involved in the regulation of superoxides as well as nitric oxide. Moreover, lactosylceramide accumulates in atherosclerotic plaques and is also found elevated in familial hypercholesterolemia and polycystic kidney disease. Animal studies revealed that lactosylceramide induces hypertrophy in cardiomyocytes via signal transduction pathway that is oxygen-sensitive.</p>

1-Deoxy-1-morpholino-D-fructose is a drug that has been shown to have an inhibitory effect on the production of dinitrophenol, leading to a decrease in the level of reactive oxygen species. The drug binds to lysine residues of proteins and forms adducts with physiological function. 1-Deoxy-1-morpholino-D-fructose also inhibits human serum albumin concentration, which may be due to its ability to inhibit oxidative DNA damage. This drug has been shown to be effective in vivo for treating autoimmune diseases and diabetes.