L-rhamnose Monohydrate Raw Materials Powder

CAS:6155-35-7

MF:C6H14O6

MW:182.17

EINECS:639-370-9

Specification: 99% min L-rhamnose Monohydrate Powder

Sample:L-rhamnose Monohydrate

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance:White

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

L-rhamnose Monohydrate Powder Usage and Synthesis.

Rhamnose is widely distributed in plants as a trace sugar. It is present in many phytosides (e.g. quercetin, isohypericin, etc.), polysaccharides, especially pectins and gums, and in laccase toxins as a bound sugar.

Rhamnose can be used to determine intestinal permeability, can be used as a sweetener, can reduce Fehling (Fehling) solution, and sodium amalgam to produce rhamnol. Can be hydrolyzed from the yellow rhamnoside (Xanthorhamnin) and quercetin rhamnoside (Quercitin).

Uses and functions of L-rhamnose Monohydrate.

Rhamnose can be used to determine intestinal permeability, synthesize cardiac drugs, can be used as a sweetener, but also for the production of flavors and fragrances, edible.

Heart-strengthening drugs: many natural heart-strengthening drugs are connected to the end of the molecular structure of a L-rhamnose base, in the synthesis of such heart-strengthening drugs, L-rhamnose base is an essential basic raw material. At present, with L-rhamnose as one of the basic raw materials, synthetic cardiac drugs are still in the research and development stage, has not been put into the market.

Synthetic spices: L-rhamnose in industrial production is mainly used in the synthesis of the spice Furaneol. Furaneol in the field of fruit spices occupies a very important position. In addition to its direct use as a spice product, it is also the basic raw material for the synthesis of many fruit flavors.

Food additives: In the reaction with other substances to generate flavor substances, compared with ribose and glucose, L-rhamnose is more special. L-rhamnose by the formation of flavor substances up to five kinds of species.

Preparation of L-rhamnose Monohydrate.

The traditional method of producing rhamnose is to extract it from natural plants, such as Quercetin from oak bark, Naringin from citrus peel or Vitamin A from Tochigi bark.

These substances contain rhamnosyl groups in their molecules and can be hydrolyzed to obtain rhamnose. Pure rhamnose is then obtained by extraction and other chemical unit process operations.

Rutin (quercetin-3-o-glucose-o-rhamnose) is hydrolyzed in 2% dilute H2SO4 at constant boiling for 2 h. A mixture of rhamnose and glucose as well as quercetin can be obtained.

Hydrolysis: put rutin in a round-bottomed flask, add 30 times the amount of 2% dilute H2SO4, install the reflux device, heating and constant boiling reflux about 2h, the bottle material from light yellow to bright yellow.

Stop heating reflux, cool the bottle, filter (slag is quercetin), decolorize the filtrate with activated carbon, and neutralize with Ca(OH)2.

Fermentation: Pour the neutralized hydrolysis solution into the fermentation flask, add yeast dry powder and incubate at constant temperature.

Product method of Bulk L-rhamnose Monohydrate Powder.