Maltose CAS 69-79-4 Maltose Chinese Information
| CAS |
69-79-4 |
| Molecular formula |
C12H22O11 |
| Molecular weight |
342.3 |
| EIENCS |
200-716-5 |
| Form |
/ |
| Melting point |
110 °C |
| boling point |
397.76°C (rough estimate) |
| Density |
1.5400 |
| Solubility |
Very soluble in water; very slightly soluble in cold ethanol (95%); practically insoluble in ether. |
| PKA |
/ |
| Color |
/ |
| Storage temp |
Sealed in dry,2-8°C |
What is Maltose CAS 69-79-4 Maltose Chinese?
Appearance: Usually colorless crystals, commonly in the form of containing one molecule of crystalline water, and the coarsely processed ones are thick syrup-like. The commercially available crystalline maltose is mainly hydrated β -maltose, among which 5% to 10% have been converted into α -maltose. If the crystalline water is removed, β -maltose will transform into α -maltose, so it is not easy to obtain anhydrous β -maltose.
Melting point: Different materials record the melting point slightly differently, ranging from 102℃, 102-103 ℃, 140-151 ℃, 160-165 ℃, etc. This might be due to factors such as measurement methods and sample purity. A crystal containing one molecule of crystalline water melts and decomposes at 102℃.
Solubility: Readily soluble in water, slightly soluble in ethanol, and almost insoluble in ether. The solubilities of different maltose isomers in water vary. Anhydrous α -maltose dissolves 64g/100g at 20℃, while the solubility of monohydrate maltose is only 27g/100g. The solubility of commercially available anhydrous maltose mixed crystals (α -maltose 42%, β -maltose 58%) is greater than or equal to 62g/100g. The solubility in methanol is as follows: anhydrous β -maltose > monohydrate maltose >α - and β -mixed maltose crystals > anhydrous α -maltose.
Sweetness: The sweetness is 40% of that of sucrose. Some also describe the sweetness as approximately one-third of that of sucrose.
Other properties: It has optical activity, and its aqueous solution shows a phenomenon of variable optical rotation. It has excellent properties such as anti-crystallization, low freezing point, moisture retention and high boiling temperature. It can be absorbed in the human body without the need for islets and is a low-calorie sugar product. At room temperature, it will not lose its crystalline water in a vacuum dryer of sulfuric acid or phosphorus pentoxide. It can reduce Fehling's solution; It can decolorize bromine water and oxidize it into maltitoic acid.
Maltose CAS 69-79-4 Maltose Chinese Use
Food industry
Sweetener: It can be used directly as a sweetener, but due to its relatively lower sweetness compared to sucrose, it is often used in combination with other sweeteners.
Maltose syrup: It can be prepared into maltose syrup and has a wide range of uses, being applied in various fields of the food industry, such as solid food, liquid food, frozen food, colloidal food (if frozen), etc. It is mainly used for processing caramel sauce color and candies, fruit juice beverages, wine-making, canned food, bean paste, soy sauce, etc. Malt syrup contains a large amount of dextrin and has good anti-crystallization properties. It will not have crystals precipitate in frozen foods and also has the effect of preventing other sugars from crystallizing, which can extend the shelf life of food. It has good fermentability and is widely used in the production of bread, pastries and beer. It has the function of preventing starch from coagulating and aging, and can increase the shelf life of jelly, jam and canned food with starch added. It has low sweetness, low hygroscopicity and high moisture retention, which increases the moisture retention of food.
Pharmaceutical industry
Pharmaceutical excipients: They can be used as fillers and flavoring agents.
Other uses: Malt syrup can be taken directly. It can promote intestinal peristalsis to supplement the carbon source and energy needed by the body. Maltose intravenous injection can inhibit the growth of putrefactive bacteria, thereby reducing the production of toxic metabolites and playing a role in protecting the liver.
Other fields: It can be used as a biological culture medium, a polysulfide stabilizer, and a brown standard for colorimetric determination in analytical chemistry, etc.
