L-Rhamnose Monohydrate
L-Rhamnose Monohydrate is the hydrated crystalline form of the naturally occurring deoxy-sugar L-rhamnose.
L-rhamnose is a six-carbon methyl pentose with the molecular formula C₆H₁₂O₅ (formal anhydrous form), and the monohydrate carries one molecule of crystal water. The CAS number for L-rhamnose monohydrate is 10030-85-0.
The crystalline powder is white, freely water-soluble, and roughly 60 percent as sweet as sucrose with a clean profile. It serves as a chiral building block, a flavour precursor, and the sugar moiety of important plant glycosides such as naringin, hesperidin, and quercitrin.
We source bulk L-Rhamnose Monohydrate from top China manufacturers for our partners. The manufacturer is in Sichuan. A smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
Grades / Types Available: Food Grade, Pharmaceutical Grade
| Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Assay | ≥ 98.0% |
| Optical Rotation | +7.0° to +9.0° |
| Moisture | ≤ 10.0% |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Purity/Assay (Food Grade) | ≥ 98% |
| Moisture/Loss on Drying | ≤ 5% |
| pH | 4.5 - 7.0 |
| Particle Size/Mesh | 100% pass through 80 mesh |
| Lead | ≤ 1 ppm |
| Arsenic | ≤ 0.5 ppm |
| Total Plate Count | ≤ 1000 cfu/g |
| Yeast & Mold | ≤ 100 cfu/g |
Common Markets Grades
L-Rhamnose Monohydrate sells in four grades: biochemistry, flavour industry, pharmaceutical research and bulk industrial.
Biochemistry grade declares 98 to 99 percent purity, a white crystalline powder used as a substrate and chiral building block.
Flavour-industry grade is the standard form for furaneol synthesis and other Maillard-style natural flavour production.
Pharmaceutical research grade declares 99.5 percent or higher and is used in glycomic and glycoconjugate synthesis.
Bulk industrial grade is produced for fermentation-feedstock and bioconversion applications.
Applications
- Substrate for natural production of furaneol and related flavour compounds
- Chiral building block in pharmaceutical and fine chemistry synthesis
- Component in oligosaccharide synthesis for glycomic research
- Sugar moiety in studies of plant glycosides (naringin, hesperidin, rutin)
- Carbohydrate substrate in fermentation media for specialty bioproducts
- Component of cosmetic actives targeting skin barrier function
- Reagent in biofilm and bacterial surface polysaccharide research
- Carbon source for selective microbial cultivation
- Reference compound in carbohydrate analytics
- Specialty sweetener in research and pharmaceutical formulation
- Substrate for biotechnological production of L-rhamnose-derived molecules
China Manufacturers of L-Rhamnose Monohydrate
Top L-Rhamnose Monohydrate manufacturers in China.
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source L-Rhamnose Monohydrate
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your L-Rhamnose Monohydrate out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load L-Rhamnose Monohydrate together with other ingredients such as Fructooligosaccharides, Dextrose and Dextrose Monohydrate into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
L-Rhamnose Monohydrate is treated as a specialty carbohydrate and biochemistry reagent in most major markets and is not generally registered as a bulk food additive.
In food and flavour manufacturing it is recognised as a permitted starting material for natural flavour production under U.S. and European natural flavour regulations.
The U.S. FDA accepts L-rhamnose for use in flavour production and as a research reagent. Pharmaceutical-grade material is covered under drug master files for specific synthetic processes.
Kosher and Halal certifications exist from leading manufacturers depending on source.
Manufacturing Process
L-Rhamnose Monohydrate is produced by acid or enzymatic hydrolysis of rhamnose-rich plant glycosides.
The dominant industrial route uses citrus peel naringin or quercitrin as starting material. The flavonoid glycoside is hydrolysed under mild acid or with rhamnosidase enzyme to release the aglycone (naringenin or quercetin) and free L-rhamnose.
The hydrolysate is filtered to remove the aglycone, then purified by activated carbon and ion-exchange demineralization.
The purified L-rhamnose solution is concentrated and crystallised as the monohydrate. Crystallisation conditions favor the hydrate form under ambient operation.
The crystals are washed, dried gently to preserve the crystal water, and packed.
