| Record Information |
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| Version | 1.0 |
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| Creation date | 2010-04-08 22:06:34 UTC |
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| Update date | 2019-11-26 03:00:24 UTC |
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| Primary ID | FDB005172 |
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| Secondary Accession Numbers | Not Available |
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| Chemical Information |
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| FooDB Name | Galactomannan |
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| Description | Galactomannan, also known as galactomannan type i, is a member of the class of compounds known as oligosaccharides. Oligosaccharides are carbohydrates made up of 3 to 10 monosaccharide units linked to each other through glycosidic bonds. Galactomannan is soluble (in water) and a very weakly acidic compound (based on its pKa). Galactomannan can be found in a number of food items such as arabica coffee, fenugreek, soy bean, and coconut, which makes galactomannan a potential biomarker for the consumption of these food products. In order of increasing number of mannose-to-galactose ratio: fenugreek gum, mannose:galactose ~1:1 guar gum, mannose:galactose ~2:1 tara gum, mannose:galactose ~3:1 locust bean gum or carob gum, mannose:galactose ~4:1 cassia gum, mannose:galactose ~5:1 Galactomannans are often used in food products to increase the viscosity of the water phase . |
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| CAS Number | Not Available |
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| Structure | |
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| Synonyms | |
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| Predicted Properties | |
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| Chemical Formula | C18H32O16 |
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| IUPAC name | (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-{[(2R,3S,4R,5S,6R)-4,5,6-trihydroxy-3-{[(2S,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]methoxy}oxane-3,4,5-triol |
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| InChI Identifier | InChI=1S/C18H32O16/c19-1-4-7(21)9(23)13(27)17(32-4)30-3-6-15(11(25)12(26)16(29)31-6)34-18-14(28)10(24)8(22)5(2-20)33-18/h4-29H,1-3H2/t4-,5-,6-,7+,8-,9+,10+,11-,12+,13-,14+,15-,16-,17+,18+/m1/s1 |
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| InChI Key | OMDQUFIYNPYJFM-XKDAHURESA-N |
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| Isomeric SMILES | OC[C@H]1O[C@H](OC[C@H]2O[C@@H](O)[C@@H](O)[C@@H](O)[C@@H]2O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@@H]2O)[C@H](O)[C@@H](O)[C@H]1O |
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| Average Molecular Weight | 504.4371 |
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| Monoisotopic Molecular Weight | 504.169034976 |
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| Classification |
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| Description | Belongs to the class of organic compounds known as oligosaccharides. These are carbohydrates made up of 3 to 10 monosaccharide units linked to each other through glycosidic bonds. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Carbohydrates and carbohydrate conjugates |
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| Direct Parent | Oligosaccharides |
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| Alternative Parents | |
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| Substituents | - Oligosaccharide
- O-glycosyl compound
- Glycosyl compound
- Oxane
- Secondary alcohol
- Hemiacetal
- Oxacycle
- Organoheterocyclic compound
- Polyol
- Acetal
- Hydrocarbon derivative
- Primary alcohol
- Alcohol
- Aliphatic heteromonocyclic compound
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| Molecular Framework | Aliphatic heteromonocyclic compounds |
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| External Descriptors | - D-glucose- and/or D-galactose-substituted mannan (CHEBI:27680 )
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| Ontology |
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| Ontology | No ontology term |
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| Physico-Chemical Properties |
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| Physico-Chemical Properties - Experimental | |
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| Spectra |
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| Spectra | |
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| EI-MS/GC-MS | Not Available |
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| MS/MS | | Type | Description | Splash Key | View |
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| Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-004u-0109520000-7123d12c283a71cb53d2 | 2016-08-01 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-004i-0309100000-2bb5a9c0560ea42289bb | 2016-08-01 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-01t9-1946200000-b0cb9b5bc4d2a0201754 | 2016-08-01 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-0w2l-2537950000-c05c8333812d7c98652b | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-024u-3928500000-fc8c8a7d4b48285276c9 | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-00bc-5974000000-d251c39e5c9042da06b3 | 2016-08-03 | View Spectrum |
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| NMR | Not Available |
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| External Links |
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| ChemSpider ID | Not Available |
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| ChEMBL ID | Not Available |
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| KEGG Compound ID | C00883 |
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| Pubchem Compound ID | 439336 |
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| Pubchem Substance ID | Not Available |
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| ChEBI ID | Not Available |
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| Phenol-Explorer ID | Not Available |
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| DrugBank ID | Not Available |
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| HMDB ID | Not Available |
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| CRC / DFC (Dictionary of Food Compounds) ID | Not Available |
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| EAFUS ID | Not Available |
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| Dr. Duke ID | GALACTOMANNAN |
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| BIGG ID | Not Available |
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| KNApSAcK ID | Not Available |
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| HET ID | Not Available |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | Not Available |
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| Flavornet ID | Not Available |
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| GoodScent ID | Not Available |
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| SuperScent ID | Not Available |
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| Wikipedia ID | Not Available |
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| Phenol-Explorer Metabolite ID | Not Available |
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| Duplicate IDS | Not Available |
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| Old DFC IDS | Not Available |
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| Associated Foods |
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| Biological Effects and Interactions |
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| Health Effects / Bioactivities | Not Available |
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| Enzymes | Not Available |
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| Pathways | Not Available |
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| Metabolism | Not Available |
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| Biosynthesis | Not Available |
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| Organoleptic Properties |
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| Flavours | Not Available |
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| Files |
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| MSDS | Not Available |
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| References |
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| Synthesis Reference | Not Available |
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| General Reference | Not Available |
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| Content Reference | — Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).
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